9514 1404 393
Answer:
21
Step-by-step explanation:
Rearranging the given ratio, we can find the ratio of boys to the total.
boys : (boys +girls) = 7 : (7+8) = 7 : 15
Then the number of boys is ...
(7/15)(45) = 21
There are 21 boys in the classroom.
Answer: look at the picture
Step-by-step explanation: Hope this help :D
Answer:
C
Step-by-step explanation:
y=mx+b
m(slope)=rise/run=1
b(y intercept)=2
y=x+2
3x-5y=17x+6y
-5y=14x+6y
-11y=14x
Answer:
x = 5
Step-by-step explanation:
4x = 1x + 15
subtract 1x from both sides
3x = 15
divide 3 from both sides
x = 5
