Answer:
The first and last one.
Step-by-step explanation:
you can't see over him
she is the same age
11 liters of 25% orange juice, 4 liters of 10% orange juice:
1' let x to be 25% orange juice and y be 10% orange juice
2' .25x+.10y=(15).21
3' x+y=15
4' 2.5x+y=31.5 divide all sides by 10
5' -x-y=-15 multiply all sides by -1
6' 1.5x=16.5
7' x=11
8' y=15-11=4
so 11 and 4 are the answers.
Answer:
complementary angles
Step-by-step explanation:
Complementary angles are (by definition) a pair of angles the have a sum of 90°.
Answer:
9 units
Step-by-step explanation:
the y value doesnt change, so the distance from -5 to 4 is 9 units
Answer:
16
Step-by-step explanation:
10 + sqrt(y) = 14
Subtract 10 from each side
10 -10+ sqrt(y) = 14-10
sqrt(y) = 4
Square each side
(sqrt(y)) ^2 = 4^2
y = 16