Answer:
24 tests
Step-by-step explanation:
Since 32 equals one hour and one hour is the total, we can see that 15 minutes equal 1/4, or 25%, 30 minutes equal 2/4, or 50%, and 45 minutes equal 3/4, or 75%. So, we can divide 32 by 4 to find out 1/4, or 25%, which equals 8. You can then multiply 8 by the number of fourths in 75% or 45 minutes, which is 3. 8 x 3 equals 24, so Mrs. Wilbur can grade 24 tests in 45 minutes.
Answer:
3 x 1/4 + 1/3 = 1 1/12.
Step-by-step explanation:
1 1/12
OR
13/12
Answer:
Step-by-step explanation:
The given product is:
We expand using the distributive property to get;
Simplify:
2x+3x+5x=90
10x=90
x=9
2 times 9=18
3 times 9=27
5 times 9=45
$18, $27, and $45.
150-15d=c
Because 150- 15 times the number of days will give you the answer no matter what the number of days are
