45/5 = 9 jams a day
x/7 = 9
x= 63 jams a day
Hope this helps!
Set up a proportion.
x = length of actual wall
1/30=7/x
Cross multiply: x = 210 inches
By definition of absolute value, if 
, then 
, so
On the other hand, if 
, then 
, and
Answer:
Step-by-step explanation:
Let B be the number of black cars and S the number of silver.
We know that B/S = 7/4
We also know that B - S = 12
Rearrange the first: B = 7S/4
B - S = 12
7S/4 - S = 12
7S - 4S = 48
3S = 48
S = 16
B/S = 7/4
B/16 = 7/4
4B = 112
B = 28
B + S = 44 cars
I can't add the tape diagram here, but show two ribbons (tapes) for each car color and drawn so one can see the relative numbers of each.
The distance between the two towns is 75 miles.
<h3>What is the actual distance between the towns to the nearest mile?</h3>
We know that the scale of the map is 1 inch to 30 miles, this means that any measure that we get in inches in the map, should be multiplied by 30 to get the real measure in miles.
In this case, we know that in the map, the distance between the two towns is (4 + 1/2) inches.
Then the real distance in miles is given by:
d = (4 + 1/2)*30mi = 60mi + 15mi = 75mi
The distance between the two towns is 75 miles.
If you want to learn more about changes of scale
brainly.com/question/15891755
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