Solve the system of equations by the substitution method.
y=5x+6
y=9x+7

Answers

Answer 1

Answer:

When finding the value of x let y be 0 and when finding value of y let x be 0 and get your answers.


Related Questions

What is the value of x in the equation in (x+6)- in (2x-1)

Answers

Answer:

x = 7

Step-by-step explanation:

(x + 6) - (2x-1)

= x - 2x + 6 + 1

= -x + 7

x = 7

plzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

B

Step-by-step explanation:

I graphed the equation, and the highest point was at 3.7 feet in the air, 4 seconds into the flight. See the graph below. Hope this helps!

Solve the equation in the image

Answers

Answer:

x = 70

Step-by-step explanation:

[tex] \sqrt{x - 6} = 8 \\ squaring \: both \: sides \\ {( \sqrt{x - 6)} }^{2} = {8}^{2} \\ x - 6 = 64 \\ x = 64 + 6 \\ \huge \red{ \boxed{ x = 70 }}\\ [/tex]

Answer:

Step-by-step explanation:

[tex]\sqrt{x-6}=8[/tex]

Take square,

[tex](\sqrt{x-6})^{2}=8^{2}\\\\x-6=64\\\\[/tex]

Add 6 to both sides,

x - 6 + 6 = 64+6

x = 70

Carlos took a test and made a 50. On the next test, he made a 75. What is the percentage of change between the two test scores?
150% increase
50% increase
150% decrease
50% decrease

Answers

50% increase
Evidence IDK

A triangle has sides with lengths of 8 centimeters, 14 centimeters, and 16 centimeters. Is it a right triangle?

Answers

Answer:

No, the triangle is not a right triangle

Step-by-step explanation:

In this question, we are asked to determine if the triangle having the lengths given in the question is a right triangle.

To answer this question, we need to take into consideration a very important property of right angle triangles.

The property is that the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the two other sides

The hypotenuse is the one with the longest length. Thus, the hypotenuse here is 16 centimeters.

Now let’s have the squares!

The square of the hypotenuse is 16 * 16 = 256

Let’s sum the squares of the other two sides;

(8 * 8) + ( 14 * 14) = 64 + 196 = 260

These squares are not equal so we can conclude that the triangle is not a right triangle

In a certain Algebra 2 class of 20 students, 8 of them play basketball and 7 of them play baseball. There are 8 students who play neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball?

Answers

Answer:

12/20

or

3/5

or

0.6

Step-by-step explanation:

The probability that a student chosen randomly from the class plays basketball or baseball is 3/5.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

Total student = 20

let the number who play both = x

So, Number of those who play basketball = 8- x

and, Number of those who play baseball = 8- x

Number of those who played neither = 8

So, 8-x + 7- x + x + 8 = 20

x = 3

Then, Basketball player = 8-3 =5

and, baseball player = 7-3 = 4

Thus, the probability that a student chosen randomly from the class plays basketball or baseball

= (5+ 4 + 3)/ 20

= 12/20

= 3/5

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Using a fair, six-sided die, what is P(2 or 3)?

Answers

Answer: 2/6
With a fair 6 sided die there is a total of 6 outcomes 2 and three being one of those. There’s a 1/6 chance of getting a 2 and 1/6 chance of getting a 3.
1+1=2
So the probably of getting a 2 or 3 is 2/6 or simplified 1/3


The result for the survey of 120 students who were selected randomly is listed below. The total population of students was 380. 66 students ride the yellow bus 24 students ride the city bus 30 students do not ride a bus . Based on the data, what is the best approximate for the total number Of students who ride the city bus?

Answers

Answer: 76 students

Step-by-step explanation:

Number of students surveyed = 120

Students who 66 ride yellow bus= 66

Students ride city bus = 24

Students who do not ride a bus = 30.

The fraction of students who ride the city bus will be:

= 24/120

= 1/5

Since the total population of the students is 380, the qpproximate for the total number of students that ride the city bus will be:

= 1/5 × 380

= 76 students

I need help ASAP, would really appreciate it, marking first as brainliest.

Answers

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Answer:

A and B

Step-by-step explanation:

The lines are both in slope intercept form:

y=Mx+b

Where m is the slope and b is the y intercept.

We have 2 lines:

y=1/3x+3

y=1/3x-2

1/3 is the coefficient of x, which means the slope is 1/3. Both of these lines have the same slope of 1/3. Since they both have the same slope, they are also parallel lines.

Therefore, A: the same slopes and B: parallel lines is correct.

In the photo, the red line is 1/3x+3 and the blue like is 1/3x-2

Explain the Pythagorean theorem.

A. The Pythagorean theorem states that if a triangle is a right triangle, then the sum of the squares of its legs is greater than the square of its hypotenuse.
B. The Pythagorean theorem states that if the square of one side of a triangle is less
than the sum of the squares of the other two sides, then the triangle is a right triangle.
C. The Pythagorean theorem states that if a triangle is a right triangle, then the sum of the squares of its legs equals the square of its hypotenuse.
D. The Pythagorean theorem states that if the square of one side of a triangle is greater than the sum of the squares of the other two sides, then the triangle is a right triangle.

Answers

Answer:

I believe the answer is C

Step-by-step explanation:

Hope this helps you out!

Answer:

Step-by-step explanation:

c

Select all the expressions which are equivalent to
-4/3p - 2/5

Answers

An expression is defined as a set of numbers, variables, and mathematical operations. The correct options are B and D.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The expression that are equivalent to -4/3p - 2/5 are:

-2/5 -4/3p-4/3p + (-2/5)

Hence, the correct options are B and D.

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What is the surface area of a cube in which each face of the cube has an area of 7 cm??

Answers

Answer:

42

Step-by-step explanation:

6 faces to a cube

each face has area of 7

6*7 is 42

Answer:

42 is correct

Step-by-step explanation:

give the other person brainliest

Find the surface area of the prism. Write your answer as a fraction or mixed number.

Answers

Answer:

2⅔ ft²

Step-by-step explanation:

A cube has 6 square faces

6 × (⅔)²

6 × 4/9

8/3

2⅔

Answer:

[tex] 2\frac{2}{3} {ft}^{2} [/tex]

Amelia earns $32.00 per hour at her job. How much money will Amelia earn if she works for 6.5 hours?

Answers

Answer:

She would earn 208 dollars

Step-by-step explanation:

Answer:

She would earn $208

Step-by-step explanation:

if she gets $32 per hr then all u gotta do is multiply 32 nd 6.5

I need help with these plzzz

Answers

Answer:

1. C 2. B

Step-by-step explanation:

1. find the total circumference, d times pi, then put 42 over 360 and multiply them to get that section

2. The actual value of x is 33.2

So I plugged in that value for all of them

The Answer is 1.c 2.b

PLEASE HELP THIS IS DUE!!!!!

Answers

Answer:

what are we supposed to answer

Step-by-step explanation:

Answer:

idk

Step-by-step explanation:

there is nothing there

which of these numbers are prime 29,33,51,65,70

Answers

Answer:

29 and 51

Step-by-step explanation:

29 and 51 are prime because the only factors of them are the numbers themselves and 1.

29/1 = 29        51/1 = 51

The composite numbers are 33, 65, and 70 because they have more than one factor.

33/3 = 11     65/5 = 13  70/10 = 7

If this answer is correct, please make me Brainliest!

Caleb’s puppy weighs 2,250 grams. If the puppy weighed 600 grams at his last visit to the veterinarian’s office, what is the percent increase in the puppy’s weight rounded to the nearest whole number? Enter your answer in the box.

Answers

Answer:

[tex]73\%[/tex]

Step-by-step explanation:

Given: Present weight of Caleb’s puppy = 2,250 grams

Puppy weighed 600 grams at his last visit to the veterinarian’s office.

To find: percent increase in the puppy’s weight rounded to the nearest whole number

Solution:

Increase in puppy's weight = 2250 - 600 = 1650 grams

Percent increase in the puppy’s weight =( Increase in puppy's weight/Present weight of Caleb’s puppy) × 100 = [tex]\frac{1650}{2250}(100)=73.33 \%[/tex]

[tex]73.33\%[/tex] is rounded to [tex]73\%[/tex]

Which is a reasonable first step that can be used to solve the equation 2(x + 6) = 3(x - 4) + 5?


Combine like terms, 3 and 5, on the right side of the equation.
Distribute 2 to x on the left side of the equation and 3 to x on the right of the equation.
Distribute 2 to (x + 6) and 3 to (X - 4)
Apply the subtraction property of equality to move the 6 from the left side of the equation to the right side.​

Answers

Answer:

Distribute 2 to (x+6) and 3 to (x-4)

Step-by-step explanation:

The first thing you need to do when solving an equation with parenthesis is to always simplify the expression first before solving. This makes it easier to solve the equation.

A commercial airplane travels 5,000 feet east and then ascends 3,000 feet from its starting point in the sky. Upon noticing a severe storm system on the horizon, the pilot decides to return to the starting point. A) how much distance does the plane have to travel to turn back? B) at what angle would the plane need to travel to return to its starting point. (1,000 feet = 1 unit)

Answers

Answer:

A) 5830.95 B)59.04

Step-by-step explanation:

Solve for the hypotenuse of 5,000 and 3,000

Use tangent to find the angle

tanx = 5,000/3,000

x=59.04

The distance the plane has to travel to turn back is 5830.95 km.

The angle would the plane need to travel to return to its starting point is 59.04°

How to find the distance?

Solve for the hypotenuse of 5,000 and 3,000

Use tangent to find the angle

tanx = 5,000/3,000

x = 59.04

Height is the size of an object in the vertical course and distance is the measurement of an object from a specific factor in the horizontal route.

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Suppose you had 28 baskets of 6 apples and 5 baskets of 9 apples.

How could you quickly figure out how many baskets of 3 apples you could create?

Answers

Answer:

71 baskets of 3 apples.

Step-by-step explanation:

From each of the 28 baskets of 6 you can get 6/3 = 2 baskets of 3.

From each of the 5 baskets you can get  9/3 = 3 baskets of 3.

Therefore:-

From the 28 baskets you can create 28 * 2 = 56 baskets of 3.

From the  5 baskets of 9 you can get 5 * 3 = 15 baskets of 3.

Total 15 + 56 = 71.

5.Gabby is fishing from a small boat. Her fishing hook is 36 feet below her, and a fish is swimming at the same depth as the hook, 77 feet away. How far away is Gabby from the fish?

Answers

Answer:

113 feet away

Step-by-step explanation:

This one is just simple maths! 36 + 77.

Hava a great day!

)) A triangle has sides with lengths of 5 inches, 12 inches, and 13 inches. Is it a right
triangle?
yes
no​

Answers

Answer:Yes

Step-by-step explanation:

Given

Triangle has sides

length [tex]a=5\ in.[/tex]

[tex]b=12\ in.[/tex]

[tex]c=13\ in.[/tex]

If the triangle is Right angled then it must satisfy the Pythagoras rule

[tex](\text{Perpendicular})^2+(\text{base})^2=(\text{Hypotenuse})^2[/tex]

[tex](a)^2+(b)^2=(c)^2[/tex]

[tex]5^2+12^2=13^2[/tex]

[tex]25+144=13^2[/tex]

[tex]169=13^2[/tex]

[tex]13^2=13^2[/tex]

Therefore The given triangle is right angled

On the spinner, the probability of landing on black is 1/2 , and the probability of landing on red is 1/3. Create a probability distribution for the experiment of spinning the spinner.

Answers

Answer:

1) [tex] p_i \geq 0 , \forall i[/tex]

2)[tex] \sum_{i=1}^n P_i = 1, i =1,2,...,n[/tex]

And for this case we have:

[tex] \frac{1}{2}+\frac{1}{6}= \frac{2}{3}[/tex]

By the complement rule we can find the probability that the spinner land in a non black or red space:

[tex]p(N) = 1- \frac{1}{2} -\frac{1}{3}= \frac{1}{6}[/tex]

And then the probability distribution would be:

Color      Red     Black    N

Prob.      1/3         1/2       1/6

Step-by-step explanation:

For this case we have two possible outcomes for the spinner experiment:

[tex] p(black) =\frac{1}{2}[/tex]

[tex] p(red) = \frac{1}{3}[/tex]

In order to have a probability distribution we need to satisfy two conditions:

1) [tex] p_i \geq 0 , \forall i[/tex]

2)[tex] \sum_{i=1}^n P_i = 1, i =1,2,...,n[/tex]

And for this case we have:

[tex] \frac{1}{2}+\frac{1}{6}= \frac{2}{3}[/tex]

By the complement rule we can find the probability that the spinner land in a non black or red space:

[tex]p(N) = 1- \frac{1}{2} -\frac{1}{3}= \frac{1}{6}[/tex]

And then the probability distribution would be:

Color      Red     Black    N

Prob.      1/3         1/2       1/6

Answer:

1/27

Step-by-step explanation:

3x0? plz halp... I don't understant

Answers

Answer: 0 ok

Step-by-step explanation: please I want to be brainliest

What is the area of the triangle below?

Answers

Answer:l think it's 6

Step-by-step explanation:

You 1/2×4×3

=6

It costs 31.25 for 1 box of candy and 4 large bags of popcorn at a movie theatre. For 3 boxes of candy and 5 large bags of popcorn it costs 46.50 how much does 1 bag of popcorn cost

Answers

Answer:

$6.75

Step-by-step explanation:

$31.25 = C + 4B C for box of candy and B for large bags of popcorn

$46.50 = 3C + 5B

3($31.25 = C + 4B)

$93.75 = 3C + 12B

-46.50. -3C. -5B

$47.25 = 7B

÷7. ÷7

$6.75. = B

3. What is the solution of the system of equations 3x +2y =10 and – 6x – y=-14?

Answers

Answer:

x=2 y=2

Step-by-step explanation:

Rewrite equations:

−6x−y=−14;3x+2y=10

Step: Solve−6x−y=−14for y:

−6x−y=−14

−6x−y+6x=−14+6x(Add 6x to both sides)

−y=6x−14

−y

−1

=

6x−14

−1

(Divide both sides by -1)

y=−6x+14

Step: Substitute−6x+14foryin3x+2y=10:

3x+2y=10

3x+2(−6x+14)=10

−9x+28=10(Simplify both sides of the equation)

−9x+28+−28=10+−28(Add -28 to both sides)

−9x=−18

−9x

−9

=

−18

−9

(Divide both sides by -9)

x=2

The first company charges 6500 to rent trucks plus an additional fee of 125.50 for each ton of sugar. The second company charges 5597 to rent trucks plus an additional fee of 200.75 for each ton of sugar. For what amount of sugar do the two companies charge the same? What is the cost when the two companies charge the same?

Answers

Answer:

a. 12

b. 8006

Step-by-step explanation:

We have company A, which is determined with the following equation:

A = 6500 + 125.5 * x

where x is the amount of ton of sugar

Same for company B:

B = 5597 + 200.7 * x

We want to know when A = B are equal, therefore:

6500 + 125.5 * x = 5597 + 200.7 * x

200.75 * x - 125.5 * x = 6500 - 5597

75.25 * x = 903

x = 903 / 75.25

x = 12

That is to say that when they are 12 tons of sugar they charge the same.

To know how much the value would be:

A = 6500 + 125.5 * 12 = 8006

B = 5597 + 200.75 * 12 = 8006

That is to say that the value when it is equal is 8006

About 3.3 × 106 students graduated from high school last year. If 0.66 of those graduates enrolled in college, approximately how many students enrolled in college?

Answers

Answer:

About 231 students enrolled

Step-by-step explanation:

3.3 times 106 is about 349.8 students that graduated.

0.66 percent graduated right? So multiply 349.8 times 0.66 to get 230.868

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