Answer:
E
E is the only one that ends with 70 and is also all multiples of 6.
Cross multiply and set it up like this.
1800 X
------- • -------
80 24
Multiply 1800•24
Then divide by 80 and you get 540.
Answer:
x = 9
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
0.8x = 7.2
<u>Step 2: Solve for </u><em><u>x</u></em>
- Divide both sides by 0.8: x = 9
<u>Step 3: Check</u>
<em>Plug in x to verify it's a solution.</em>
- Substitute: 0.8(9) = 7.2
- Multiply: 7.2 = 7.2
7.2 does indeed equal 7.2. ∴ x = 9 is a solution.
And we have our final answer!
Answer:
a)0.879
Step-by-step explanation:
divide 87.9 by 100
She runs 1/6 mile per minute.
School is 2/3 of a mile away from her home.
Rewrite 2/3 to have the same denominator as 1/6:
2/3 = 4/6
Divide distance by speed:
4/6 / 1/6 = 4/6 x 6/1 = 24/6 = 4
It will take her 4 minutes.
