Tim likes to play video games. If he cancomplete a level in of an hour, howmany levels can he complete in 4hours?

Answers

Answer 1

Given:

Number of levels he can complete in 1 hour = 1 level

To find the number of levels he can complete in 4 hours, we have:

4 * 1 = 4


Related Questions

Select the equations below that are equivalent to -6 = -20 - v

Answers

Given

[tex]-6=-20-v[/tex]

- For -72 = 9(-20 - v):

[tex]\begin{gathered} -\frac{72}{9}=\frac{9(-20-v)}{9} \\ -8=-20-v \end{gathered}[/tex]

The equation is not equivalent

- For -90 = 15(-20 - v):

[tex]\begin{gathered} \frac{-90}{15}=\frac{15(-20-v)}{15} \\ -6=-20-v \end{gathered}[/tex]

The equation is equivalent

- For 5 * -6 = -100 - 5v:

Common factor 5

[tex]\begin{gathered} -30=5(-20-v) \\ \frac{-30}{5}=\frac{5(-20-v)}{5} \\ -6=-20-v \end{gathered}[/tex]

The equation is equivalent

- For 3 * -6 = -60 - 3v:

Common factor 3

[tex]\begin{gathered} -18=3(-20-v) \\ \frac{-18}{3}=\frac{3(-20-v)}{3} \\ -6=-20-v \end{gathered}[/tex]

The equation is equivalent

Answer:

-90 = 15(-20 - v)

5 * -6 = -100 - 5v

3 * -6 = -60 - 3v

Pattern A Step 0 Step 1 pattern A or pattern B) shows a quadratic relationship?Step 2 Step 3 8 Pattern B Step 0 Step 1 Step 2 Step 3 2 a. How many dots will there be in Step 4 of each pattern? Pattern A = 16 dots Pattern B = 16 dots b. Which pattern (

Answers

Looking at pattern A, the rate at which the number of dots in increasing is linear. The common difference between the number of dots in consecutive steps is 2. The sequence formed is

4, 8, 12.......

The common difference is 8 - 4 = 12 - 8 = 4

Thus, the number of dots in step 4 is

12 + 4 = 16

Looking at pattern B, the sequence formed is

2, 3, 6, 11

3 - 1 = 1

6 - 3 = 3

11 - 6 = 5

We can see that the difference between consecutive terms is increasing by a constant value, 2. This means that the difference between the fourth term and the third term is 5 + 2 = 7

Thus, the number of dots in step 4 is

11 + 7 = 18

b) A quadratic sequence is one in which the second difference between any two consecutive terms is constant. The constant value for the second difference in pattern B is 2

Thus, pattern B is shows a quadratic relationship

The box plots below show the number of goals that two hockey players, Sam and Barry, Scored each season during their careers.Select all that are TRUE1) Barrys data is nearly symmetrical2) the median is Sams data is more than Barrys data3) Sam scored more goals in one season than berry did.4) Barrys chart shows more variable than Sams5) Sams distribution is skewed left

Answers

From the given distribution, it is clear that

Sam scored more goals in one season than berry did.

and

Barrys data is nearly symmetrical

The slope of the line is given by the variable m. Slowly drag the m slider to the right. How does this changethe line?

Answers

2.

As you can see:

Rise = 2

Run = 2

Slope = 2

Robin and Dovey have four pet pigeons that they train to race. They release the birds at Robin's house and then drive to Dovey's to collect them. To drive from Robin's to Dovey's, because of one-way streets, they go 3.1 km north, turn right and go 1.7 km east, turn left and go 2.3 km north, turn right and go 0.9 km east, turn left and go 1.2 km north, turn left and go 4.1 km west, and finally turn left and go 0.4 km south. How far do the pigeons have to fly to go directly from Robin's house to Dovey's house? Round your answer to the nearest tenth. (HINT: draw a picture!) *

Answers

Let the north and east with a positive sign, so, the south and west are negative signs

Because of one-way streets, they go 3.1 km north, turn right and go 1.7 km east, turn left and go 2.3 km north, turn right and go 0.9 km east, turn left and go 1.2 km north, turn left and go 4.1 km west, and finally turn left and go 0.4 km south.

So, the resultant horizontal distance = 1.7 + 0.9 - 4.1 = -1.5 km

The resultant vertical distance = 3.1 + 2.3 + 1.2 - 0.4 = 6.2 km

So, the direct distance will be calculated using Pythagorean theorem :

So, the distance d =

[tex]\begin{gathered} d=\sqrt[]{(-1.5)^2+(6.2)^2}=\sqrt[]{2.25+38.44} \\ \\ d=\sqrt[]{40.69}=6.37887 \end{gathered}[/tex]

Rounding the answer to the nearest tenth

so, the answer is : 6.4 km

A vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made. If x cars are made, then theunit cost is given by the function C (x) = 0,3x2 -96x+14,848. How many cars must be made to minimize the unit cost?Do not round your answer

Answers

Answer:

[tex]160\text{ cars}[/tex]

Explanation:

Here, we want to get the number of cars to be made so as to minimize the unit cost

What we have to do here is to find the first derivative of the given cost function

Mathematically, we have that as:

[tex]C^{\prime}(x)\text{ = 0.6x -96}[/tex]

To get the minimum x value, we simply set the first derivative to zero and solve for x

Mathematically, that would be:

[tex]\begin{gathered} 0\text{ = 0.6x-96} \\ 0.6x\text{ = 96} \\ x\text{ = }\frac{96}{0.6} \\ x\text{ = 160 } \end{gathered}[/tex]

How can you find the next digit in the quotient?
Bring down the ? to show there are 2 tens
? ones that still need to be divided.

Answers

Bring down the next digit 6 to show there are 2 tens and 6 ones that still need to be divided.

This method of dividing is called the long division method.

In this, we divide the dividend with the divisor and get a quotient and a remainder.

The steps involved are given below :

1. Take the dividend's first digit from the left. Determine whether this digit is bigger than or equal to the divisor.

2. Then divide it by the divisor and write the result as the quotient on top.

3. Subtract the result from the digit and record the difference in the box below.

4. Reduce the dividend by the following digit (if present).

5. Repeat the above steps.

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A jeweler has found that the monthly revenue received from selling a pair of earrings at a cost of d dollars each is given by the polynomial −7d2+180d. Find the monthly revenue received when d=17 dollars.

Answers

The monthly revenue is $1037

What is a linear equation in one variable?

A linear equation in one variable is equation whose degree is one and there is only one variable present.

We are given the monthly revenue received from selling a pair of earrings at a cost of d dollars is given by equation [tex]-7d^{2}+180d[/tex]

We have to find the monthly revenue received when the cost is $17

That is d=17

Now we substitute d=17 in the given equation to find the monthly revenue

We get,

[tex]-7d^{2}+180d\\[/tex]

⇒[tex]-7(17^{2})+180(17)\\[/tex]

⇒ -2023+3060

⇒1037

Hence the monthly revenue earned is $1037

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Find the equation of the line with the following:slope = 2/5; passes through (-3, 1)

Answers

Answer:

[tex]y=\frac{2}{5}x+\frac{11}{5}[/tex]

Explanation:

Given the slope and a point on the line, we use the point-slope form to find the equation of the line:

[tex]\begin{gathered} y-y_1=m(x-x_1) \\ m=\frac{2}{5} \\ (x_1,y_1)=(-3,1) \end{gathered}[/tex]

Substitute the given values:

[tex]\begin{gathered} y-y_1=m(x-x_1) \\ y-1=\frac{2}{5}(x-(-3)) \\ y-1=\frac{2}{5}(x+3) \\ y=\frac{2}{5}(x+3)+1 \\ y=\frac{2}{5}x+\frac{6}{5}+1 \\ y=\frac{2}{5}x+\frac{11}{5} \end{gathered}[/tex]

The equation of the line in slope-intercept form is:

[tex]y=\frac{2}{5}x+\frac{11}{5}[/tex]

A rocket is launched straight up with a velocity of 8.36. What would be the velocity when it lands?

Answers

If the rocket is launched straight up with a velocity of 8.36 then at the velocity of landing the speed of the rocket will also be 8.36.

Given that the rocket is launched straight up with a velocity of 8.36.

We are required to find the velocity when the rocket lands.

Velocity is basically the directional speed of a object in motion as an indication of its rate of change in position as observed from a particular frame of reference.

When the velocity of rocket while it goes up is 8.36 then the velocity when it lands is also 8.36 because if the velocity will increase then the rocket will crash also.

Hence if the rocket is launched straight up with a velocity of 8.36 then at the velocity of landing the speed of the rocket will also be 8.36.

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The quadratic equation d = -t2 + 4t + 33 models the depth of water, d, in feet
in a flood channel t hours after a rainstorm.
a. Solve the equation -t2 + 4t+ 33 = 0.
b. Approximate the positive solution found in part (a) to two decimal
places.
c. Interpret the answer to part (b) in terms of the problem.

Answers

a. The solution of the equation is t = 2 ± √37.

b. The approximation of the positive solution is 8.08.

c. The interpretation is that the depth of the water is 0 feet after 8.08 hours of the rainstorm.

We are given a quadratic equation. The equation is given below :

d = -t² + 4t + 33

The equation models the depth of the water "d" in a flood channel "t" hours after a rainstorm.

a. We have to solve the equation :

-t² + 4t + 33 = 0

t² - 4t - 33 = 0

t = 2 ± √37

b. We need to approximate the positive solution found in part (a) to two decimal places. The positive solution is t = 2 + √37.

t = 2 + 6.08

t = 8.08

c. The depth of the water is 0 feet after 8.08 hours of the rainstorm.

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Find the approximate area between the curve and the x-axis on the interval using 4 rectangles. Use the left endpoint of each rectangle to determine the height.

Answers

We have to approximate the area under the curve using the given rectangles.

Each rectangle will have an area that is equal to the width (the interval Δx) times the height (that is f(xi)).

We can express the formula for the approximation as:

[tex]A=\sum_{i=1}^4f(x_i)\cdot\Delta x=\sum_{i\mathop{=}1}^4f(x_i)(x_{i+1}-x_i)[/tex]

We will have to calculate f(x) for x = 0, 4, 8 and 12, which are the left endpoints of the interval for each rectangle.

Given that f(x) is defined as:

[tex]f(x)=-2x^2+32x+5[/tex]

we can calculate each value as:

[tex]f(0)=-2(0)^2+32(0)+5=5[/tex][tex]\begin{gathered} f(4)=-2(4)^2+32(4)+5 \\ f(4)=-2(16)+128+5 \\ f(4)=-32+128+5 \\ f(4)=101 \end{gathered}[/tex][tex]\begin{gathered} f(8)=-2(8)^2+32(8)+5 \\ f(8)=-128+256+5 \\ f(8)=133 \end{gathered}[/tex][tex]\begin{gathered} f(12)=-2(12)^2+32(12)+5 \\ f(12)=-288+384+5 \\ f(12)=101 \end{gathered}[/tex]

We can now calculate the approximation as:

[tex]\begin{gathered} A=f(0)(4-0)+f(4)(8-4)+f(8)(12-8)+f(12)(16-12) \\ A=5(4)+101(4)+133(4)+101(4) \\ A=20+404+532+404 \\ A=1360 \end{gathered}[/tex]

Answer: the approximation is equal to 1360 square units [Fourth option].

Find the radius of the circle and the coordinates of its center

Answers

[tex]\begin{gathered} \text{The equation of a circle with centre (a,b) and radius, r, is given by the equation:} \\ (x-a)^2+(y-b)^2=r^2 \end{gathered}[/tex][tex]\begin{gathered} x^2-12x-60=-y^2-4y \\ x^2-12x+y^2+4y=60 \\ By\text{ completing the square for x coefficient and y coefficient, we have:} \\ x^2-12x+36+y^2+4y+4=60+36+4 \\ (x-6)^2+(y+2)^2=100 \\ (x-6)^2+(y+2)^2=10^2 \end{gathered}[/tex]

Hence, the radius of the circle is 10, and the coordinates of its centre is (6,-2)

Out of a group of 120 students, 28 said they ski and 52 said they snowboard. Sixteen of thestudents said they do both. If a student is chosen at random, find the probability that theysnowboard given they ski (Hint: Draw a Venn Diagram).

Answers

Given:

The total number of students = 128 students.

The number of students who play ski, N(S)= 28 students.

The number of students who play snowboard, N(B)= 52 students.

The number of students who play both ski and snowboard, N(S and B)= 16 students.

[tex]N(S\cap B)=16[/tex]

Required:

We need to find the probability that they snowboard given they ski.

Explanation:

The ven diagram.

Consider the Conditional probability formula.

[tex]P(\frac{S}{B})=\frac{N(S\cap B)}{N(B)}[/tex][tex]Substitue\text{ }N(S\cap B)=16\text{ and N\lparen B\rparen=52 in the formula.}[/tex]

[tex]P(\frac{S}{B})=\frac{16}{52}[/tex][tex]P(\frac{S}{B})=\frac{4}{13}[/tex]

Final answer:

The probability that they snowboard given they ski is 4/13.

Solve the equation. Justify each step using the word bank provided. *Properties may be used more than once!
Given
Addition Property of Equality
Subtraction Property of Equality
Multiplication Property of Equality
Division Property of Equality
Distributive Property
Combine
Like Terms



Justifications for each step:
2(x − 4) − 9 = 3(2x + 1) + 4
HELP PLEASE

Answers

The result of the equation 2(x − 4) − 9 = 3(2x + 1) + 4 by using the distributive property is x = -6

The equation is

2(x − 4) − 9 = 3(2x + 1) + 4

The distributive property states that multiplying the sum of two or more variables by a number will provide the same result as multiplying each variable individually by the number and then adding the products together.

The distributive property of the addition

A(B + C) = AB + AC

The distributive property of the subtraction

A(B - C) = AB - AC

The equation is

2(x − 4) − 9 = 3(2x + 1) + 4

Apply the distributive property

2x-8-9 = 6x+3+4

2x-17 = 6x+7

Rearrange the like terms and combine it

2x-6x = 7+17

-4x = 24

x = -6

Hence, the result of the equation 2(x − 4) − 9 = 3(2x + 1) + 4 by using the distributive property is x = -6

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I need to factor this expression (7th grade math):26x + 18

Answers

SOLUTION:

Required: To factorize the expression:

Solving:

[tex]\begin{gathered} 26x\text{ + 18} \\ \text{First we find the GCF of each terms of the binomial. The greatest co}mmon\text{ factor betwe}en\text{ 26x and 18} \\ 2(13x\text{ + 9)} \end{gathered}[/tex]

Final answer:

The final answer is 2(13x + 9)

You invest $1000 in an account that has an annual interest rate of 4%, compounded quarterly for 12 years. How much money will you have after the 12 years? $3138.43 O $3237.27 O $1601.03 O $1612.23

Answers

The compound interest formula is given by

[tex]A=P(1+\frac{r}{n})^{n\times t}[/tex]

where A is the resulting amount after t years, P is the present value (or principal amount) , r is the annual interest rate and n is the number of compounding periods per year.

From the given information, we have that

[tex]\begin{gathered} P=1000 \\ r=0.04 \\ n=4\text{ (quaterly=4 times per year)} \\ t=12\text{ years} \end{gathered}[/tex]

By substituting these values into the formula, we have

[tex]A=1000(1+\frac{0.04}{4})^{4\times12}[/tex]

which gives

[tex]\begin{gathered} A=1000(1.01)^{48} \\ A=1000(1.6122) \\ A=1612.226 \end{gathered}[/tex]

Therefore, by rounding to the nearest thousandth, the answer is $1612.23, which corresponds to the last option.

Which of the following graphs represents the reflection of the point ( -3, 5) over the x-axis? I have to send you the other 2. It’s 4 altogether.

Answers

We have to identify the graph that represents the reflection of the point (-3,5) over the x-axis.

A reflection over the x-axis can be defined by the following rule: if we have a point (x,y), the image point after the reflection will have the same x-coordinate but the opposite of the y-coordinate.

It can be expressed as:

[tex]P=(x,y)\longrightarrow P^{\prime}=(x,-y)[/tex]

Then, the image point for (-3,5) will be:

[tex](-3,5)\longrightarrow(-3,-5)[/tex]

Then, this can be represented in a graph as:

This matches the following graph:

you invest 1,000 in an account that pays simple interest of 3% for 10 years. what is the amount of money you'll have at the end of the 10 years?

Answers

Given data:

The given principal is P=1,000.

The given rate of interest is r=3%.

The given time is t=10 years.

The expression for the final amount after 10 years is,

[tex]A=P+\frac{P\times r\times t}{100}[/tex]

Substitute the given values in the above expression.

[tex]\begin{gathered} A=1,000+\frac{1,000\times3\times10}{100} \\ =1,300 \end{gathered}[/tex]

Thus, the final amount after 10 years is 1,300.

The water level in a lake was monitored and was noted to have changed −213 inches in one year. The next year it was noted to have changed −116 inches. What was the total change in the water level over the two years? Enter your answer as a simplified mixed number by filling in the boxes.

Answers

are those fractions??

Multiply. Simplify, you may leave the numerator and denominator in answer in factored form.

Answers

Step 1

Given;

Step 2

Multiply

[tex]\frac{x^3+1}{x^3-x^2+x}\times\frac{3x}{-15x-15}=\frac{3x^4+3x}{-15x^4-15x}[/tex]

Simplify

[tex]\frac{3x\left(x+1\right)\left(x^2-x+1\right)}{-15x\left(x+1\right)\left(x^2-x+1\right)}=-\frac{1}{5}[/tex]

Answer;

[tex][/tex]

j
knjfjfjfjfjfjf help me solve this thanks !!

Answers

Answer:

132 degrees

Step-by-step explanation:

102+30 = 132

need answer asap ty

multiplying integers
1. 13 + (-20) =
2.29 + (-12) =
3.21 + (-13) =
4.-19 + (-26) =​

Answers

answer 1=-7

2=17

3=8

4=-45

Use the long division method to find the result when 8x3 + 14x2 11x - 8 is divided by 2x + 1. If there is a remainder, express the result in the form q(a) +

Answers

Let's develop a synthetic division

As you can observe, the division is exact because its reminder is zero.

Hence, the answer is-

[tex]\frac{8x^3+14x^2-11x-8}{2x+1}=4x^2+5x-8[/tex]

od 2 - 7th Grade Math) Simplify the following expressions: (9x + 3) - (5x - 7) (1 Point) Enter your answer

Answers

Simplifying the expression, we have:

[tex]\begin{gathered} (9x+3)-(5x-7) \\ =9x+3-5x+7 \\ =(9x-5x)+(3+7) \\ =4x+10 \end{gathered}[/tex]

So the simplified expression is 4x + 10.

Which letrero Best represents √27 on the number line.

Answers

You have the following number

√27

In order to determine which letter best represent the previous number, you take into account the following square roots:

√25 = 5

√36 = 6

Then, you can consider that √27 is a number in between 5 and 6, because √27 in anumber in between √25 and √36.

The only letter that is in between 5 and 6 on the number line, is the letter C.

Hence, letter C best represents √27

Amrita wants to raise more than $200 for a charity by walking dogs in her neighborhood. She charges $7 per walk.What is an inequality that can be used to find the number of walks, w, that Amrita needs to complete?

Answers

Given:

Amrita wants to raise more than $200 for a charity.

She charges $7 per walk.

[tex]\begin{gathered} 7w>200 \\ \end{gathered}[/tex]

Solve -4x + 3 > 23 or 7x - 6 > 22

Answers

Answer:

-4x + 3 > 23 Answer is x<-5

Step-by-step explanation:

Will someone please help me with this? I tried getting help but it didn’t work

Answers

[tex]\begin{gathered} A=\text{ amount invested in fund A} \\ B=\text{ amount invested in fund B} \\ \text{Interest in fund A =}3\text{ \%=0.03} \\ \text{Interest in fund B =}7\text{ \%=0.07} \\ Equation\text{ system} \\ A+B=20300\text{ (1)} \\ 0.03A+0.07B=1109\text{ (2)} \\ \text{From (1) Solving A} \\ A+B=20300 \\ A=20300-B \\ U\sin g\text{ A in (2)} \\ 0.03(20300-B)+0.07B=1109 \\ 609-0.03B+0.07B=1109 \\ -0.03B+0.07B=1109-609 \\ 0.04B=500 \\ B=\frac{500}{0.04} \\ B=12500 \\ \text{Then} \\ A=20300-12500 \\ A=7800 \\ He\text{ }invested\text{ \$7800 in fund A and \$12500 in fund B} \end{gathered}[/tex]

helpppppppp ur gurlll out

Answers

Answer:

Step-by-step explanation:

2(x-3) + 21 = -3

So:

My first step is to open the brackets

2x - 6 + 21 = -3

Then I plus two numbers in the equation:

2x + 15 = -3

Third step is: 2x = -3 - 15

2x = -18

The value of x that makes the equation true is:

x = -18/2

x = -9

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