Answer:
The total number of boys = 105
Step-by-step explanation:
The ratio of boys to girls = 3: 4
⇒ For every 3 boys, there are 4 girls.
Now, total number of students = 245
Let the common ratio of boys to girls is k.
So, 3k + 4k = 245
or , 7k = 245
⇒ k = 245/7 = 35
⇒ k = 35
Hence, the number of boys = 3k = 3 x 35 = 105
and number of girls = 4k = 4 x 35 = 140
Lets say m is miles and h is hours
then according to your equation
m=50h
because after each hour 50 miles are increasing a constant change of 50
Answer:
b=1-a
Step-by-step explanation:
Inside parenthesis
1/1=1
(replace it with that)
Open parenthesis
a=2-1-b
simplify numbers
a=1-b
isolate b
a-1=-b
multiple each side by negative 1
1-a=b
B.x=$6.40. You do 32÷5 to figure out what 1x equals and that's $6.40
Answer:
Step-by-step explanation:
1 1/4 (or 1.25) cups to 20 servings = 1 gallon (16 cups) to x servings
1.25 16
--------- = -------- cross multiply
20 x
(1.25)(x) = (20)(16)
1.25x = 320
x = 320/1.25
x = 256 servings <===