<u>Answer:</u>
- For 15 pens, the cost is $7.2
<u>Step-by-step explanation:</u>
<u>We know that:</u>
<u>Work:</u>
Divide the RHS:
- => 1 pen = 3.84/8
- => 1 pen = 0.48
Multiply the RHS:
- => 15 pens = 0.48 x 1
- => 15 pens = $7.2
Hence, <u>for 15 pens, the cost is $7.2</u>
Hoped this helped.
Answer:
x = 1
General Formulas and Concepts:
<u>Pre-Algebra</u>
Step-by-step explanation:
<u>Step 1: Translate</u>
"Five" = 5
"times" is multiplication
"difference" is subtraction
"twice" means 2 times something
"a number" = <em>x</em>
"is" means equal
"-10" = -10
<u>Step 2: Set up equation</u>
5(2x - 4) = -10
<u>Step 3: Solve for </u><em><u>x</u></em>
- Distribute 5: 10x - 20 = -10
- Isolate <em>x </em>term: 10x = 10
- Isolate <em>x</em>: x = 1
1) 3^3 * 4^3 = 12^3
2) 3^4 * 3^3 = 3^7
3) 3^4 * 4^3 = 12^12
They are all equal.
Answer:
192 mm^3
Step-by-step explanation:
v = a^2 * b/3
v = 8^2 * 9/3
v = 64 * 3
v = 192
Answer:
Jan earns 1$ more per hour than Eli
Step-by-step explanation:
If you divide Eli's 20$ by 4 hours you get 5. This means Eli makes 5 dollars every hour.
To find Jans earning,you need to look at the graph where the 1 on thebotton meets up with the first number on the left which is 6. That shows how the firat hour Jan makes 6. I hope I helped!