Mathematics Middle School

please help will give brainliest

Answers

Answer 1

Answer:

21!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

Answer:

Step-by-step explanation:

It would be 18 because you would do -3+21 which would be equal to 18. You would do this because you are first at -3 but then at 11 the temperature increased 21.

Hope this helped!

Related Questions

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°

heLP
for two quantities x and y, if y is always a constant multiple of x, they have a(n)

Answers

Answer: Two quantities x and y have a proportional relationship if y is always constant multiple of x.

Step-by-step explanation:

x and y are in proportional relationship if y is always a constant multiple of x.

What is constant?

In mathematical term, a constant has a fixed value, that doesn't change according to situation.

The given quantities are x and y,

To show that y is always a constant multiple of x,

Use proportional relationship property,

According to that,

Two quantities x and y have a proportional relationship if y is always a constant multiple of x.

Therefore, x and y are in proportional relationship.

To learn more about Constant on :

https://brainly.com/question/28580620

#SPJ2

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! :)

i just need help because i dont understand it

Answers

Answer:

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

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

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

Explain how (-2) + 8 is equal to 6

Answers

Step-by-step explanation:

-2+8 is the same as 8-2 which equals 6.

again like normal. first is brainliest.

Answers

Answer:

Can you give me brainliest this time plz, I answered first

Step-by-step explanation:

Answer:

D is the answer to the question

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.

David is running a 500 m sprint. so far he has run 300 m. what fraction of the spirit does he have left?
?
__
?
what percent?________%

Answers

40 percent is left to run

Answer:

200/500=2/5

40%

Step-by-step explanation:

If the total distance of the sprint is 500m and he's already run 300m, so subtract 500-300 which equals 200.

Then put it in fraction form 500 being the total distance needing to be traveled in all will be your denominator and 200 being the distance left to be traveled will be your numerator. 200/500

Then simplify=200/500 divided by 100/100 equals 2/5.

Then to get it to a percentage divide 2 by 5 which equals .40

Then convert to a percentage 40%

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.

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

98x-5a(65x+2)-9(8x-7)

Answers

Answer:

6298x - 5a

Step-by-step explanation:

98x x 65x = 6370x

9 x 8x = 72x

6270x - 72x = 6298x

(all we have left now is the 5a)

6298x - 5a

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

can 0.714352 be a fraction?

Answers

Answer:

Step-by-step explanation:

i put it into my calculator and told it to turn it into a fraction, it said ERROR meaning that it's unable to become a fraction

no 0.714352 can not be converted into a fraction

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

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

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

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

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!

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

Please help me with question number 3!

Answers

Answer:3.0> 2.08

Step-by-step explanation:

Answer 3.0>2.08 it’s right

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"

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.

What is the value of the expression 62 + 33

Answers

Answer: the value is 95

Step-by-step explanation:

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

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 :)

Finding the slope:
Identify the slope on the graph below.

Answers

3/2 is the slope of the graph

Answer:

[tex]\frac32[/tex]

Step-by-step explanation:

Hello!

Slope can be calculated by [tex]\frac{Rise}{Run}[/tex].

The Rise of the graph is how much the graph changes in y between two points.The Run of the graph is how much the graph changes in x between two points.

I'll pick points (0,-2) and (2,1) on the graph.

You can see that the difference in y (-2 and 1) is 3 units.

The difference in x (0 and 2) is 2 units.

Put it into the format and you get a slope of [tex]\frac32[/tex].

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.)

please help ill give brainliest

Answers

Answer:

26.25

Step-by-step explanation:

I'm pretty sure this is the correct answer.

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