Question 7:
Set up a ratio:
<u>388 students</u> = <u>x students
</u>1552 cartons 2820 cartons<u>
</u>Cross multiply and divide. 388 X 2820 = 1094160 / 1552 = 705 students
Question 8:
Add up hours and divide by people working.
5+9=13/2= 6.5 hours
<u />
Answer:
70
Step-by-step explanation:
Answer:
All real number
Step-by-step explanation:
Is this ok
Answer:
x = 4
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Step-by-step explanation:
<u>Step 1: Define</u>
x/2 + 3 = 5
<u>Step 2: Solve for </u><em><u>x</u></em>
- Subtract 3 on both sides: x/2 = 2
- Multiply 2 on both sides: x = 4
First, find her rate for the day. Since she runs 10 laps a day, multiply.
400 times 10= 4000
Next, I'll convert kilometers into meters;
12 times 1000=12,000
Divide to find the days:
12,000/4,000=3
It will take 3 days to run a total of 12 kilometers.
