Mathematics Middle School

42 pointssssss!!! There are two unknowns you are trying to find, and you cannot express one in terms of the other. Describe how you could use algebra to solve for the unknowns.

Answers

Answer 1
you can use a formula like y=mx+b

Related Questions

I don't understand this- (math is my really WEAK point :') )

Answers

Answer:

A. 1/10

Step-by-step explanation:

You have to switch the operations for division to multipliation

Can you help me graph this system of inequalities. And give the coordinates for the set.

Answers

Answer:

Here I made a yt vid to explain

Step-by-step explanation:

NEVER GONNA GIVE YOU UP

Use Desmos Graphing Calculator

Please do them all start with number 2 please epscify what problem is the answer MULTIPLE PAGES I LITTERLY. SWEAR DOOD NOBODY DOES THE OTHER PAGES-

Answers

Answer:

Q2: 2x+5=15

Q3: 35x+7=63

Q4: 2t+3=39

Q5: x/5-2=7

I haven't got a clue on how to do the last three but I hope these four help!

URGENT AGAIN
John's salary last year was $80000. Last year he got a raise of 10%. This year
the company lost money and his salary was cut back to S80000 By what percent did
his salary decrease this year?

Answers

Answer:

so I dont think that my answer is right but since his salary was 80000 last year but he got a raise of 10% then he got 8000 more so then he got 88000 in total but then they took away $80000 so I think they took away 90%

It is 10%, since his salary came back to what it was before the raise.

Regina travels ½ of a kilometer for every ¼ of a minute she drives. You were told that the trip from Times Square to Pelham Parkway is 72 kilometers. How many minutes would her trip have taken by car?

Answers

Answer:

36 minutes.

Step-by-step explanation:

The best way to solve this is to find how much distance is traveled in a minute and then divide the total distance by the distance traveled in a minute. Now let's apply.

1/4 x 4 = 1 minute, so in this problem, 1/2 x 4 = 1 minute.

1/2 x 4 = 2.

72 / 2 = 36.

Her trip would have taken 36 minutes by car.

Answer:

36 minutes.

Step-by-step explanation:

For every mile she takes it's 1/2 of a minute. Then just do 72/2 and get 36 :)

Pls help only 3 more questions left

Answers

Answer:

the answer would be D

Step-by-step explanation:

since it does not specify how many of each shirts there are, it is possible for it to be any size and color.

Answer:

D

Step-by-step explanation:

R B P Y are just the shirts there are two sizes so 8 possible outcomes

amount of shirts x sizes = outcome

4 x 2 = 8

What is the value of the expression 62 + 33

Answers

Answer: the value is 95

Step-by-step explanation:

The Buffaloes won 57.1% of their 140 baseball games this year. How many games did they win?
A) 60
B) 70
C) 80
D) 90

Answers

Answer:

C - 80 games

Step-by-step explanation:

140 * 0.571 ≈ 80

C is the correct solution A, B, and D are incorrect

What is the range of possible sizes for side x?

Answers

Answer:

2.8<x<5.6

Step-by-step explanation:

it has to be more than 2.8 and less than 2.8+2.6 (5.6)

2.8<x<5.6

There is no possible sides there is one answer 2.8 square plus 2.8 squared equals c 2

I have an assignment due and I need help. These are the problems! WILL MARK BRRAINLIEST
1. Find the selling price if the cost to the store is $80 and the Markup is 60%. Do not label your answer
2. Find the selling price if the cost to the store is $140 and the Markup is 25%. Do not label your answer
3. Find the selling price if the cost to the store is $50 and the Markup is 10%. Do not label your answer.
4.Find the cost to the store if the store is selling a game for $48 with a markup of 20%. Do not label your answer
5. Find the cost to the store if the store is selling shoes for $54 with a markup of 8%. Do not label your answer
6. Find the cost to the store if the store is selling chips for $3.24 with a markup of 35%. Do not label your answer
7. Find the precent of markup if the cost to the store is $350 and the store is selling the bike for $402.50. Do not label your answer
8. Find the precent of markup if the cost to the store is $250 and the store is selling the TV for $312.50. Do not label your answer
9. Find the precent of markup if the cost to the store is $200 and the store is selling the bike for $376. Do not label your answer
and then there are some problems that I will ask please help ASAP!!!!

Answers

Answer:

1. Would  60%×80+80 = $128

(P.S. still thinking of the other ones.)

Packs of pens are $3.5 each with a $6 delivery charge when ordered online.
a. Write an equation to represent the total spent on packs of pens based on the number purchased.
b. Graph the equation.

Answers

Answer:

its A

Step-by-step explanation:

Answer:

aAEDS

Step-by-step explanation:

Factor 25x2+40x+16 completely.
Enter your answer by filling in the boxes.
25x2+40x+16 = ([]x+[])²

Answers

(5x+4)^2 because 5x times 5x is 25x^2 then 20x+20x equals 40x and 4 times 4 equals 16

Answer:

(5x+4)²

Step-by-step explanation:

Use the quadratic formula to solve

PLS HURRY

The equation 9t = 27.99 models a constant rate situation.



Drag and drop the value of 5t in the box. 5t=

Answers

Answer:

The value of 5t will be 15.55

Step-by-step explanation:

Given equation is;

9t = 27.99

As it is stated that the relationship is constant, therefore, we will find the value of t by dividing 27.99 by 9

Now, we will put t=3.11 to find 5t.

The value of 5t will be 15.55

the value is 15.55
if you need an explanation just ask

A car rental company's fees are shown. Suppose you rent a car using Option 2. Write an expression that gives the total cost in dollars for driving m miles. Then find the cost for driving 150 miles.

Option 1 - $19.99 per day, $0.17 per mi.

Option 2 - $50 fee, $0.17 per mi

Answers

Answer:

Step-by-step explanation:

.17M+50

I have an assignment due and I need help. These are the problems!
1. Find the selling price if the cost to the store is $80 and the Markup is 60%. Do not label your answer
2. Find the selling price if the cost to the store is $140 and the Markup is 25%. Do not label your answer
3. Find the selling price if the cost to the store is $50 and the Markup is 10%. Do not label your answer.
4.Find the cost to the store if the store is selling a game for $48 with a markup of 20%. Do not label your answer
5. Find the cost to the store if the store is selling shoes for $54 with a markup of 8%. Do not label your answer
6. Find the cost to the store if the store is selling chips for $3.24 with a markup of 35%. Do not label your answer
7. Find the precent of markup if the cost to the store is $350 and the store is selling the bike for $402.50. Do not label your answer
8. Find the precent of markup if the cost to the store is $250 and the store is selling the TV for $312.50. Do not label your answer
9. Find the precent of markup if the cost to the store is $200 and the store is selling the bike for $376. Do not label your answer
and then there are some problems that I will ask please help ASAP!!!! WILL MARK BRAINLIEST!

Answers

Hdbzhzzmzndnxjxnndjs

please help me thank you sooooo much ( also if you take my points
I'm reporting you)

Answers

Answer: x=-10.2 but for me the real answer is x=10.2 but go for x=-10.2

Step-by-step explanation: hope this help

Answer:

10.2 is the answer

Step-by-step explanation:

when u divide you get it.

please help ill give brainliest

Answers

Answer:

26.25

Step-by-step explanation:

I'm pretty sure this is the correct answer.

The perimeter of a rectangular garden is 37.5 feet. The width is x, and the length is 15 ft. Use the equation 2(x + 15) = 37.5 to determine the width, in feet, of the garden?

Answers

Answer:

2.5

Step-by-step explanation:

37.5/15=2.5

Answer:

11.25

Step-by-step explanation:

first what u do is u just make 2(x+15)=37.5 into 2x+15=37.5

and then u do 2x=37.5-15

that will give u 2x=22.5

then u do this x=22.5/2

and x = to 11.25

Write an inequality for each situation.
1. up to 5 people, p, visited Mary today
2. the value, v, of the hat is less than $9
3. the number of guests, g, coming for dinner is not 8.
4. the distance of the race, d , is at least 6 miles.
5. the time it takes to get to grandmas house, t, is longer than 2 hours.
PLS HELP I NEED IT FOR TODAY

Answers

Answer:

1. p <= 5

2. v < 9

3. g != 8

4. d >= 6

5. t > 20

Step-by-step explanation:

<= is "less than or equal to"

!= is "not equal to"

>= is "greater than or equal to"

Lin’s second pan has a length of 9/4 inches, a width of 10/3 inches, and a height of 4/3 inches. What is the volume of the second pan?

Answers

Answer:

10 inches

Step-by-step explanation:

9/4 = 2 and 1/4

10/3 = 3 and 1/3

4/3 = 1 and 1/4

Volume is length x width x height

2 and 1/4 x 3 and 1/3 x 1 and 1/4 = 10

The volume of Lin's second pan is 10 inches

10 Inches
Hope this helps!

Please help ASAP thank you!

Answers

Answer:

Step-by-step explanation:

Perimeter=((4-1)+(-2-(-4)))2

               =10

Answer:

Perimeter=((4-1)+(-2-(-4)))2 =10

Step-by-step explanation:

may i pls have brainliest

p.s i agree with the guy below/ or above me

whats the formula for the surface area of a triangle?

Answers

Answer:

use the formula A = 1/2bh, where A = area, b = base, and h = height. Once you have the areas of all sides and faces, you simply add them together to get the surface area.

Hope this helps!

The formula would be depending on the triangular shape. Triangular prisms have their own formula for finding surface area because they have two triangular faces opposite each other. Which creates the formula A=12bh is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height.

i just need help because i dont understand it

Answers

Answer:

8

Step-by-step explanation:

2 times 4 is 8

Answer:

25square units

Step-by-step explanation:

you have to find the area of the blue square. First you have to find the side length of the square. the missing length is called the hypotenuse because it is the longest side of the triangle. It is probably 5 units, because in comparison the the 4 units it looks about 1 unit longer. now all that's left is 5x5=25

Which is the net of this solid?

A pentagonal pyramid is shown.(image below)

A net is shown with a square in the middle and 4 identical triangles on the 4 sides of the square.
A net is shown with a pentagon in the middle and 5 identical triangles on the 5 sides of the pentagon.
A net is shown with a triangle in the middle and 3 identical triangles on the 3 sides of the triangle in the middle.
A net is shown with a hexagon in the middle and 6 identical triangles on the 6 sides of the hexagon.

first image is the pentagonal pyramid, second image is a, last image is d.

Answers

Answer:

The answer is letter A.

It’s Anwser is going to be A

A restaurant is selling 3 smoothies for $9.

How much do 15 smoothies cost?

Number of smoothies Cost in dollars

3 9

15 ? ( Zearn)

Answers

45
to find the answer just find the unit price by dividing 9 by 3, that gives you 3.
that means each smoothie is 3 dollars, then just times by 15! :)

The measures of the angles of △ABC are given by the expressions in the table.

Angle Measure
A ​(6x−1)°​
B 20°
C (x + 14)°
What are the measures of angles A and C?

Answers

Answer:

First You add all given angles up to equal 180 to give you x then you plug x into equations

Step-by-step explanation:

A= 125 degrees

C= 35 degrees

Answer:

Angle A = 125°

Angle C = 35°

Step-by-step explanation:

This is the equation you would have to solve:

Angle A + Angle B + Angle C = 180°

Fill in the values given:

(6x-1)° + 20° + (x+14)° = 180°

The parentheses don't really matter here. Go on to combine like terms. This gives you:

7x + 33 = 180°

Solve for x. Subtract 33 on both sides. This gives 7x = 147. Divide both sides by 7. This gives x = 21.

Now, go back and fill in 21 for x in the expressions for angles A & C.

Angle A:

6(21) - 1 = 125°

Angle C:

21 + 14 = 35°

You can check your answers using the first equation I mentioned:

Angle A + Angle B + Angle C = 180°

125° + 20° + 35° = 180°

This is a true equation. Therefore, the final answers are:

Angle A = 125°

Angle B = 20°

Angle C = 35°

A large bottle of juice contains 500 milliliters of juice. A small bottle contains 50% as much juice as the large bottle. How many milliliters of juice are in the small bottle?

Answers

Answer:

250 milliliters of juice.

Step-by-step explanation:

You need to find 50% of 500. What I like to do in this situation is turn it into a basic division problem:

500 ÷ 2

500 divided by 2 is 250.

Solve: y + x = 3
y = 1.5x + 1
Solve: y = 1.4x + 2
y = 3.4x - 2

Answers

I hope that this help 1) x=0.8 2)x=2

Which equation has a slope of 1/2 and y-intercept of -5

A. 2x + y = -5
B. 2x - y = 5
C. x + 2y = -10
D. x - 2y = 10

Answers

The answer is D
x-2y = 10
Yes if I remember from last year it was D but don’t quote me on that

If I invest $600 at an 11.5% interest rate, how much money will I earn over 5 years?
A. $945
B. $345
C. $69
D. $34.50

Answers

Answer:

B. 345

Step-by-step explanation:

Hope this helps!

I think it’s choice b. $345
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