We want a in terms of b and c: <span>3a+4b=c
Isolate 3a on the left side: 3a = c - 4b
Divide all terms by 3:
a = c/3 - 4b/3 (answer)</span>
Answer:
The answer is C
Step-by-step explanation:
Answer:
I believe it's false
Step-by-step explanation:
Answer:
350 girls
Step-by-step explanation:
So,
The secret to solving problems with ratios is to find the value of one unit.
5:7 = 12 units total
To find one unit, divide the total number of students by the total number of units.
600/12 = a
Simplify
50/1 = a
50 = a
The value of each unit is 50.
Now, multiply the units by the numbers in the ratio.
50(5) = b
250 = boys
50(7) = x
350 = x
There are 350 girls.
-30% answer is right because it lost 3 inches and 30 percent of 10 is 3.
Answer: -30%
