The sum of their ages equals 80.
Gabrielle is 3 times older than Mikhail
Two numbers that have a sum of 80, with one number being 3 times the other are:
Gabrielle’s age: 60
Mikhail’s age: 20
60 + 20 = 80
20 x 3 = 60
Mikhail is 20 years old.
Answer:
3 students got a perfect score.
Step-by-step explanation:
Total number of students in Mrs. Grape's class = 90
Number of students who earned an A = 3/10 of 90
= 
= 27 students
Out of 27 students the number of students who got perfect score
= 
= 3 students
3 students got a perfect score.
ANSWER
{x|x < -2 or x > 8}
EXPLANATION
The given absolute inequality is

By the definition of absolute value,

Multiply through the second inequality by -1 and reverse the inequality sign


Simplify

Divide through by 2

Answer:
-1.32-34.7= -36.02
Step-by-step explanation:
A negative minus a negative will always give you another negative.
So, to do this quickly just see this equation "-1.32-34.7" as this equation "1.32+34.7" and add a negative once you've finished.
1.32+34.7= 36.02
Now add the negative.
-36.02
There are two sides 9 x 5
Two sides are 5 x 3
Two sides are 9 x 3
Surface area :
2 x 9 x 5 = 90
2 x 5 x 3 = 30
2 x 9 x 3 = 54
Total: 90 + 30 + 54 = 174 square inches