Answer:
First number is 300 second in 320
Step-by-step explanation:
let x be the first number
let x + 20 be the second
620 = x + (x +20)
620 = 2x + 20
620 - 20 = 2x
600/2 = 2x/2
x= 300
x + 20 = 320
Define variable for each number, sum of the 2 variable must equal 620 then isolate for x and calculate the sum of the first and second number
the numbers are 300 and 320.
You can solve this by using the equation x+ (x+20) = 620.
You purchase 3 items for $4.23. About how much did you spend?
you should mark them brainliest now
PLEASE HELP!!!!!! YALL WILL GET 100 POINTS
Answer:
??
Step-by-step explanation:
p + 5 = 15 help meeeeeeeeeeeeee
Answer:
p=10
Step-by-step explanation:
subtract 5 on both sides and you'll get p=10 :]
The cost of an ice cream cone is measured by the formula c=1/4x=3/4 where x is the number of scoops of ice cream and c is the cost.According to the how much should it cost to buy an ice cone without the ice cream
Question might have an error as it says 1/4x=3/4 as formula
Answer:
1/4
Step-by-step explanation:
Cost of ice cream cone is represented by the formula c=1/4x where x is the number of scoops of ice cream
Therefore the cost to buy to buy an ice cream cone without ice cream will be equal to 1/4. We can deduce this easily as we can see that x represents ice cream scoops, therefore cost of each cone is 1/4.
Is this correct, I chose A
Answer:
I’m pretty sure
Step-by-step explanation:
Answer:
good job
Step-by-step explanation:
Mary has scored 78 , 60 , 82 , 94 , and 88 on her previous five tests . What score does she need on her next test so that her average ( mean ) is 80?
Answer:
She needs to score 78 on her next test
Step-by-step explanation:
[tex]\frac{78+60+82+94+88+x}{6}=80[/tex]
Collect like terms;
[tex]\frac{402+x}{6}=80[/tex]
Multiply both sides by 6;
402 + x = 480
Subtract 402 from both sides;
x = 78
The length of the base of an isosceles triangle is x. The length of a leg is 4x - 3. The perimeter of the triangle is 39. Find x.
X=
Answer:
The value of x is 5.
Step-by-step explanation:
Given that:
Base of triangle = b = x
Length of side of triangle = a = 4x-3
Perimeter = 39
In an isosceles triangle, two sides of the triangle are equal.
Perimeter of an isosceles triangle is given by,
P = 2a+b
Putting the values
39 = 2(4x-3)+x
39=8x-6+x
39=9x-6
39+6=9x
45=9x
9x=45
Dividing both sides by 9
[tex]\frac{9x}{9}=\frac{45}{9}\\x=5[/tex]
Hence,
The value of x is 5.
A system of linear equations is given by the tables. x y -1 1 0 3 1 5 2 7 x y -2 -7 0 -1 2 5 4 11 The first equation of this system is y = x + 3. The second equation of this system is y = 3x − . The solution of the system is ( , ).
Answer:
The first equation of this system is y =2 x + 3.
The second equation of this system is y = 3x −1 .
The solution of the system is (4,11).
Step-by-step explanation:
PLATO CORRECT
The solution of the system of equations are (4, 11).
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 9 is an equation.
We have,
The first equation of this system is y = 2x + 3.
The second equation of this system is y = 3x - 1
Now,
y = 2x + 3 _____(1)
y = 3x - 1 _______(2)
(1) = (2)
2x + 3 = 3x - 1
3 + 1 = 3x - 2x
x = 4
Now,
Putting x = 4 in (1) or (2)
y = 2 x 4 + 3 = 8 + 3 = 11
y = 3 x 4 - 1 = 12 - 1 = 11
Thus,
The solutions of the system are (4, 11).
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Twice the difference of a number and 9 is at least 17.
Answer:
x ≥ 12.5
Step-by-step explanation:
2(x-9) ≥ 17---Use Distributive Property
2x-18 ≥ 17
2x-18+18 ≥ 17+18
2x ≥ 25
2x/2 ≥ 25/2
x ≥ 12.5
I hope this helps!
what is a non linear graph?
Answer:
A non-linear graph is a graph that is not a straight line. A non-linear graph can be described by an equation.
Step-by-step explanation:
Answer:
a non linear graph is a graph that is not a straight line. it can be described by a equation
Step-by-step explanation:
A small company manufactures three different electronic components for computers.
Component A requires 2 hours of fabrication and 1 hour of assembly; component B
requires 3 hours of fabrication and 1 hour of assembly; and component C requires 2
hours of fabrication and 2 hours of assembly. The company has up to 1,000 labor hours
of fabrication time and 800 labor hours of assembly time available each week. The
combined total of components A, B, and C can’t exceed 420 in a week. The profit on
each component A, B, and C is $7, $8, and $10 respectively. How many components of
each type should the company manufacture each week in order to maximize profit
(assuming that they can sell all that they manufacture)? What is the maximum profit
Answer:
Modays
Step-by-step explanation:
They suck.
The company should manufacture 200 units of component A, 120 units of component B, and 100 units of component C each week, resulting in a maximum profit of $3360.
Define the variables:
a = Number of component A units produced each week
b = Number of component B units produced each week
c = Number of component C units produced each week
Set up the constraints:
Fabrication hours: 2a + 3b + 2c ≤ 1000
Assembly hours: a + b + 2c ≤ 800
Combined total of components: a + b + c ≤ 420
Set up the objective function: maximize: 7a + 8b + 10c
Now, we have the problem set up.
We can use linear programming techniques to find the optimal solution.
Solve the linear programming problem:
By applying the Simplex method or any other optimization algorithm, we can find the optimal solution.
After performing the calculations, the solution is as follows:
a = 200 (Number of component A units produced each week)
b = 120 (Number of component B units produced each week)
c = 100 (Number of component C units produced each week)
Calculate the maximum profit:
Using the values obtained in Step 4, we can calculate the maximum profit:
Profit from component A units: 7 x 200 = $1400
Profit from component B units: 8 x 120 = $960
Profit from component C units: 10 x 100 = $1000
Total maximum profit: $1400 + $960 + $1000 = $3360
So, the company should manufacture 200 units of component A, 120 units of component B, and 100 units of component C each week to maximize profit, resulting in a maximum profit of $3360.
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The 5th grade class of 2022 will go on a field trip to Tennesee. There will be 219 students and teachers attending the trip. Each bus seats 24 people. Will 9 bussews be enough for the trip?
Explain.
Answer:
No 9 bus is not enough you would need 10
Step-by-step explanation:
219/24=9.125
If a right angle triangle has a hypotenuse of length 13 units and a leg of length 7 units, what would be the length of the other leg?
The length of the other leg of a right angle triangle is, 10.95 units
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
Given that;
A right angle triangle has a hypotenuse of length 13 units and a leg of length 7 units.
Now, By the Pythagoras theorem, we get;
⇒ Hypotenuse² = Perpendicular² + Base²
⇒ 13² = 7² + Base²
⇒ 169 = 49 + Base²
⇒ Base² = 169 - 49
⇒ Base² = 120
⇒ Base = √120
⇒ Base = 10.95 units
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For which values of x would the list below be considered, "NOT a function"?
{(7, 8), (8, 5), (9, 2), (x, 0)}
Step-by-step explanation:
The values of x would be 7, 8 or 9.
Look at my most recent question (other than this one)
it has this pic:
Answer:
okay i will right now
EASY ALGEBRA QUESTION
Please help. This is worth 20 points and I will give brainliest!
Answer:
D
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
i hope it is correct :)
The price of a trampoline before tax is $300. The salesvtax is 4%
Answer:
The total price is $312 and the sales tax is 12
Step-by-step explanation:
300 x 0.04= 12
300 + 12 = 312
Lucy baked 12 cookies. She baked 6 more and split them up equally between herself and 2 friends. How many cookies did each person have? Which equation represents the problem?
Answer:
(12+6)÷3=x represents this problem.
Each person had 6 cookies.
Step-by-step explanation:
Lucy baked 12 cookies and then baked 6 more, which means the total number of cookies she baked is equal to 12+6.
Total number of cookies = 12+6
She then split them up equally between herself and her two friends, which means Lucy divided the (12+6) cookies among 3 people.
Let x be equal to the number of cookies each person had.
(12+6) cookies ÷ 3 people = the number of cookies each person had
(12+6)÷3=x
Therefore, the equation that represents this problem is (12+6)÷3=x.
To find the number of cookies each person had, we just have to solve the equation.
(12+6)÷3=x
18÷3=x
6=x
Therefore, each person had 6 cookies.
I hope this helps! Happy holidays :)
Answer:
I hope this helps.
Step-by-step explanation:
Solve 15(1/3)z = 5.
Answer:
1
Step-by-step explanation:
15(1/3)z=5
(1/3)z=5/15
simplify 5/15 into 1/3
(1/3)z=1/3
z=(1/3)/(1/3)
z=1
(0,-1) (-2,3)
Determining an equation of a line. what's the answer? i rlly need help
Answer:
y=-2x-1
Step-by-step explanation:
somebody help please
after this i will go to bed
Yani buys 4 dozen flyers for $7.25. What is the cost of 12 dozen
WHICH ONE SHOULD I PUT?
Answer:
42.5
Step-by-step explanation:
A store has apples on sale for $28.00 for 8 pounds. If an apple is approximately 5 ounces, how many apples can you buy for $224.00
204.8 apples.
First you would find out how many ounces are in 8 pounds, which would be 128. then do 128/5 to get 25.6 < that would be how many apples are in 8 pounds. Next you would do 224/28 to find out how many of the 8 pounds you can buy for 224 dollars. so you get 8 from that. So now we do 25.6*8 to get 204.8 apples.
204 apples rounded down and 205 apples rounded up
Consider △RST and △RYX.
Triangle R S T is shown. Line X Y is drawn parallel to side S T within triangle R S T to form triangle R Y X.
If the triangles are similar, which must be true?
StartFraction R Y Over Y S EndFraction = StartFraction R X Over X T EndFraction = StartFraction X Y Over T S EndFraction
StartFraction R Y Over R S EndFraction = StartFraction R X Over R T EndFraction = StartFraction X Y Over T S EndFraction
StartFraction R Y Over R S EndFraction = StartFraction R X Over R T EndFraction = StartFraction R S Over R Y EndFraction
StartFraction R Y Over R X EndFraction = StartFraction R S Over R T EndFraction = StartFraction X Y Over T S EndFraction
Answer:
B. [tex]\frac{RY}{RS}[/tex] = [tex]\frac{RX}{RT}[/tex] = [tex]\frac{XY}{TS}[/tex], must be true.
Step-by-step explanation:
Similar figures are figures whose angles and sides are similar with respect to a definite ratio when compared.
From the given question, note that ΔRXY is within ΔRST. Given that the two triangles are similar, then their sides can be compare in a form of ratio as:
[tex]\frac{RY}{RS}[/tex] = [tex]\frac{RX}{RT}[/tex] = [tex]\frac{XY}{TS}[/tex]
Therefore by comparing the length of sides of the triangles, option B must be true.
The dimensions of one of two triangles that are similar can be obtained
from the other triangle by multiplying by a scale factor.
The statement that must be true is; [tex]\displaystyle \underline{ \frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}}[/tex]Reasons:
The given relationship between the triangles are;
Line XY is drawn within ΔRST to form ΔRYX.
XY is parallel to ST
Given that we have;
Point X on side RT and point Y on side RS of ΔRST
ΔRST is similar to ΔRYX, we get;
The ratio of the corresponding sides are equal, which gives;
[tex]\displaystyle \frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}[/tex]
Therefore;
The option that gives the statement that must be true is; [tex]\displaystyle \underline{\frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}}[/tex]
which is the same as the option; StartFraction RY Over RS EndFraction =
StartFraction RX Over RT EndFraction = StartFraction XY Over TS
EndFraction.
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Which of the following statements is true about the three quadrilaterals? (5 points)
1) E and Fare similar but not congruent.
2) E and G are similar but not congruent.
3) G and F are similar and also congruent.
4) E and G are similar and also congruent.
Ouestion 8 15 points)
Answer:
1 one os true
2 nd one is true
Please help, I’ll mark who’s ever right the Brainiest
Answer:
0; 1/4; 1/2; 1.5; 1.75 and 1 and 3/4 are the same.
Step-by-step explanation:
Answer:
First split it in half. That middle mark is 1.
Split each half in half. You should have 3 ticks evenly spaced.
First is 1/2, middle tick is 1, third tick is 1 1/2.
1/4 is inbetween 0 and 1/2.
Next is 1/2, which is the tick you made.
Next is 1.5, which is the third tick you made.
The last two, 1 3/4 and 1.75 mean the same thing. Both are exactly inbetween the third tick (1 1/2) and the last number which is 2.
Step-by-step explanation:
for part 2, just add in 3/4 exactly inbetween 1/2 and 1. and 1 1/4 which is between 1 and 1 1/2.
then you can add in 1/8 exactly inbetween 0 and 1/4
the fourth one is the one you made earlier which was 1 to split in half.
Please help me thanks okay please help me thanks
Answer:
13*16=208cm^2
Step-by-step explanation:
-5(-2 -8)=10+5m what’s the answer to this?
Answer:
m=8
Step-by-step explanation:
-5(-2 -8)=10+5m
10+40=10+5m -->distributive property
50=10+5m
50-10=10-10+5m--->canceling the 10
40=5m
m=8 (division property)
If a quadratic equation has a negative leading coefficient and a discriminant of -40, which of the following is true?
1. The graph will be a parabola that opens down and does not touch the x-axis.
2. The graph will be a parabola that opens up and does not touch the x-axis.
3. The graph will be a parabola that opens down and touches the x-axis once.
4. The graph will be a parabola that opens down and touches the x-axis twice.
Negative leading coefficient. Therefore it is the downward paeabola.
Discriminant of -40 therefore the parabola does not touch x-axis
so the answer is 1.
