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Alenkinab [10]
3 years ago
10

Please help a brother out! Thank you!

Mathematics
1 answer:
netineya [11]3 years ago
5 0

they are saying x = 3 so you would use the middle equation

so -4x becomes -4(3)

-4 * 3 =-12

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The edge of a cube measures 3.5 x 10 ^ -2 meters. What is the volume of the cube in cubic meters? WRITE Your ANSWERS IN SCIENTIF
Crank

The volume of given cube is: 4.29 * 10^{-5} cubic meters

Step-by-step explanation:

Volume of a cube is given by:

V = a^3

Given

Edge of the cube = 3.5*10^{-2}

Putting the value of edge

V = (3.5*10^{-2})^3\\V = 42.875 * (10^{-2})^3\\V = 42.9 * 10 ^{-2*3}\\V = 42.9 * 10^{-6}\\V = 4.29 * 10 * 10 ^{-6}\\V = 4.29 * 10^{-5}\ cubic\ meters

The volume of given cube is: 4.29 * 10^{-5} cubic meters

Keywords: Volume, cube, scientific notation

Learn more about scientific notation at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

7 0
3 years ago
Sam has $3.30 in quarters and dimes, and the total number of coins is 18. How many quarters and how many dimes?
zhuklara [117]

Answer:

Quarters: 10

Dimes: 8

Step-by-step explanation:

Constraints

value: 0.25q + 0.10d = 3.30

count: q + d = 18

q = 18 - d

0.25(18-d) + 0.10d = 3.30

4.50-0.25d+0.10d = 3.30

4.50-0.15d = 3.30

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q + 8 = 18

q = 10

Check:

0.25(10) + 0.10(8) = 3.30

2.5+ 0.80 = 3.30

3.30 = 3.30

4 0
3 years ago
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MatroZZZ [7]

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i think 5

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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german

60 / 2 = 30

30 * 5 = 150

he had $150 at first

60, the amount he was left with was 2/5 or 40% of his original amount

4 0
2 years ago
Two fifth of a certain number plus two is equal to ten​
Fed [463]

Answer:

that no. is 20

Step-by-step explanation:

let us take that certain no. as x

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2/5. x +2=10

2x/5 = 10-2

2x = 8×5

x= 40/2

x= 20

3 0
3 years ago
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