Answer:
5
Step-by-step explanation:
If 3.5 cups of flour makes 7 servings, then 0.5 cups of flour are needed for each serving if you divide 3.5 by 7, 10 times 0.5 is equal to 5.
Answer:
The correct answer is 52 squats.
Step-by-step explanation:
An exercise routine requires 24 crunches for every 16 squats.
Therefore the routine would require 1 crunch for every 
squats.
And by the use of unitary method, the routine would require 78 crunches for every × 78 squats = 52 squats.
Thus for every 78 crunches attempted, the exercise routine would requires 52 squats to be done.
Answer:
train A=38mph train B=44mph
Step-by-step explanation:
Setting up a table:
s t d
A x 190/x 190
B x+6 220/x+6 220
Train A was 6mph slower as shown in the table, so to make it easier, train a is identified as x, train b would be x+6
Their distances are put in their respective column.
You find time from distance divided by speed.
So time would be written as such.
Since you know they take the same amount of time, for the equation, you connect them with an equal sign. Cross multiply to something like:
190(x+6)=220x
190x+1140=220x
1140=30x
x=38
You plug this in and get the speed for train A as 38, and train B as 44.
Hope this helps ^^
Let x pints be the required amount of 70% pure juice.
Let y pints be the required amount of 95% pure juice.
x + y = 70 pints
Therefore we can write:
y = 70 - x ................(1)
Amount of pure juice in x pints = 0.7x.
Amount of pure juice in y pints = 0.95y = 0.95(70 - x).
Amount of pure juice in 70 pints = 0.8 x 70 = 56 pints.
Equating the amounts of pure juice, we get:
0.7x + 0.95(70 - x) = 56 ...........(2).
The solution to equation (2) is x = 42. Therefore y = 70 - 42 = 28.
The answer is: 42 pints of 70% pure fruit juice and 28 pints of 95% pure fruit juice are required.
