Answer:
4.2
Step-by-step explanation:
10% of 42 is 4.2
Answer: ~2.45 cups, or A
Step-by-step explanation:
First, find the area of the circle. Area formula is 
, but instead of the radius, we have the diameter. Halve the diameter to get the radius of 10 inches.
A = pi * 100
So the pizza has an area of around ~314.15 square inches.
Divide this number by 16 square inches to find how many 1/8 cups Tony uses.
314.15/16 = ~19.63 1/8 cups.
You can then divide 19.63 by 8 to receive how many cups he uses.
Answer:
495 miles / (10 hours) = 49.5 miles/hour
Answer:
scientific notation, the number to the left of the x must be between 1 and 10, so you have to move the decimal place until that happens - which in this case means moving it 2 digits to the right.
the x 10^ is standard, the only thing you need to change is the exponent. a negative exponent means you move the decimal to the left, and a positive exponent means to the right. you just count how many decimal places you have to move to get from 1.23 to .0123, and in which direction. here, you have to move it 2 places to the left, so you end up with 1.23 x 10^-2
feel free to report if it's wrong
Step-by-step explanation:
Answer:
<h3>x = 20</h3>
Step-by-step explanation:
∠2 = ∠5
3x - 20 = x + 20
3x - x = 20 + 20
2x = 40
x = 40/2
x = 20
