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3 years ago

I need a little bit of more help understanding how to do this

Mathematics

1 answer:

taurus [48]3 years ago

3 0

Add 3 to both sides, then add 2m
Then divide 4 on both sides.

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PLEASE HURRY WILL GIVE BRAINLIEST A truck can be rented from Company A for $90 a day plus $0.30 per mile. Company B charges $70

rjkz [21]

Answer:

40 miles a day

Step-by-step explanation:

The difference in fixed charge is $20; the difference in mileage charge is $0.50 per mile. So it will take $20/$0.50 = 40 miles for the extra mileage cost to eat up the savings in fixed cost. At that mileage, both companies will charge the same amount:

A: 90 + 0.30·40 = 102

B: 70 + 0.80·40 = 102

4 0

3 years ago

If you give me the answer I’ll give brainlist just plz help me !!

Sergio [31]

Answer:

So roudned to the nearest 10th it would be about $70

Step-by-step explanation:

8 0

3 years ago

For which system of equations would you need to estimate the solution? On a coordinate plane, 2 lines intersect at (3, 0). On a

astraxan [27]

Answer:

Step-by-step explanation:

Got it right

7 0

3 years ago

Read 2 more answers

Please help. I don't want to fail! If edge of a cube is doubled then its surface area becomes ____ times and the volume becomes

ArbitrLikvidat [17]

If the edge of the cube is doubled then its surface area of the cube becomes 4 times and the volume becomes 8 times

6 0

3 years ago

Yeah another one ha ha

boyakko [2]

Answer:

16.75 cubic inches

Step-by-step explanation:

<u>Key skills needed: Volume of a cylinder, Volume of a sphere</u>

1) To get the answer to this problem, you need to understand two formulas: The volume of a sphere, and The volume of a cylinder.

Volume of a sphere --> $V= \frac{4}{3}\pi r^3$ (V = volume, and r = radius)
Volume of a cylinder --> $V = \pi r^2h$ (V = volume, r = radius,h = height)

These formulas will be needed.

2) In order to solve this problem, we need to find the volumes of both, and the subtract them from one another to find the difference.

3) Let's start by finding the volumes:

Cylinder --> $V = \pi r^2h$

We have the radius (which is 2) and the height (which is 4)

This means we can solve --> $V = \pi(2^2)(4)$

2 squared is 4, so then it would be --> $V = \pi (4)(4)$
4 times 4 is 16 so $V = 16\pi$ ---> 16 pi is the same as 50.24 cubic inches (if you use 3.14 as pi).
Next is the Sphere--> $V = \frac{4}{3}\pi r^3$

We have the radius (which is 2) so we can solve

$V = \frac{4}{3}\pi (2^3)$
2 cubed is 8, so it would be --> $V = \frac{4}{3}\pi (8)$
8 times 4/3 is 32/3 so --> $V = \frac{32}{3}\pi$ --> which is Around 33.51 cubic inches

4) Now we have to find the difference, so we do:

50.24 - 33.51 = 16.74

This means your answer would be 16.75 as that is the closest one.

<em>Hope you understood and have a nice day!! :D</em>

5 0

3 years ago