Answer:
y = 9
Step-by-step explanation:
Given
4 +
= 7
Isolate the term in y by subtracting 4 from both sides
= 3 ( multiply both sides by 3 )
y = 3 × 3 = 9
for
x
y
: To do this we must divide each side of the equation by
2
y
which will give us
x
y
while keeping the equation balance.
There are 3 more dots above the 13 than are above the 12, so the appropriate choice is ...
... A. 3
3 x 25 = 75
4 x 12 = 48
75 - 10 = 65
65 + 48 = 113
Answer: 113 markers and crayons or 65 crayons and 48 markers
The mean of the numbers is c. 67