Answer:
The numbers of boys in one grade are 60 .
Step-by-step explanation:
As given
In one grade of 150 students .
The ratio of boys to girls is 2:3.
Let us assume that the scalar multiple of boys and girls be x.
Thus number of boys = 2x
Number of girls = 3x
Than the equations becomes
2x + 3x = 150
5x = 150
x = 30
Thus number of boys = 2 × 30
= 60
Therefore the numbers of boys in one grade are 60 .
Answer:
Choice B
Step-by-step explanation:
Divide both of the choices by the price and ounces. You will find that the unit rate of choice B is lower.
Work
3.49/25=0.14
4.79/45=0.106
Therefore choice B has the lowest unit rate and that is the answer!
Answer:
The answer is 16%
Step-by-step explanation:
use the percent error formula.
in this problem,
e= 75
t=90
substitute and solve.
16%
we are dealing with percents so rounding to nearest whole number will suffice.
hope this helps!
Answer:
false
Step-by-step explanation:
-5,-4,-3,-2,-1,0,1,2,3,4,5
Answer: -5x= -11
Step-by-step explanation:
