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coldgirl [10]
3 years ago
8

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

she earn? Use the formula I=Prt to find your answer, where I is interest, P is principal, r is rate and t is time. Enter your solution in decimal form rounded to the nearest hundredth. For example, if your solution is 12%, you would enter 0.12.
Mathematics
1 answer:
Tamiku [17]3 years ago
5 0
34....................
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Which of the following is a numerical expression?
Illusion [34]
C probably because a numerical expression uses numbers and does not have any equal signs at the end and it seems like the best answer

8 0
3 years ago
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Carlos went to PetSmart to get his hamster an exercise ball. There was a small one with a 5 inch diameter and a 13 inch ball. Ho
myrzilka [38]

The amount of space (volume) that is in the larger spherical ball than the smaller = 1,084.8 in.³

<h3>What is the Volume of a Sphere/Spherical Solid?</h3>

To find the volume of a sphere, which is the amount of space the solid contains, the formula used is given as: 4/3 πr³, where r is the radius of the sphere, which is half the measure of the diameter. Volume of sphere (V) = 4/3 πr³.

Diameter of the smaller spherical ball = 5 inches

Radius of the smaller spherical ball = 5/2 = 2.5 inches

Volume of the smaller spherical ball = 4/3 πr³ = 4/3 × π × 2.5³

Volume of the smaller spherical ball ≈ 65.5 in.³

Diameter of the larger spherical ball = 13 inches

Radius of the larger spherical ball = 13/2 = 6.5 inches

Volume of the larger spherical ball = 4/3 πr³ = 4/3 × π × 6.5³

Volume of the larger spherical ball ≈ 1,150.3 in.³

The amount of space (volume) that is in the larger spherical ball than the smaller = 1,150.3  - 65.5

The amount of space (volume) that is in the larger spherical ball than the smaller = 1,084.8 in.³

Learn more about the volume of sphere on:

brainly.com/question/22807400

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4 0
2 years ago
Rafael Drive 405 miles using 20 gallons of gas. At that rate, how many gallons of gas would he need to drive 243 miles?
ANEK [815]
This is how I'd set it up:
405/20 = 243/x 
this means the mpg (miles / gallons) for 1 situation is the same as the mpg for the other situation (because the rate is the same)
then just cross multiply and solve:
405x=243*20 or 405x=4860 or x = 12
he would need 12 gallons of gas for 243 miles
3 0
3 years ago
Help pls asap!! No links.
algol [13]

Answer:

Step-by-step explanation:

1. Do what is inside the parantheses

4^{2} +3+2\\16+3+2 = 21

7^{2} +3(21)

2. Simplify both terms

7^{2} =49\\3(21) = 63\\49+63

3. Solve

49+63 = 112

7 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cpi%20%20x%5E%7B4%7D%20%2C%20%5Cpi%20%20x%5E%7B6%7D%20%2C%20%5Cpi%20%20x%5E%7B8%7D%20%2C%
Tomtit [17]
Im barely in 7th grade wat us th is
7 0
3 years ago
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