We are given the ratio of 1/2 inch: 18 miles
Multiply both sides of the ratio by 2. I'm doing this so that the "1/2" turns into "1"
So we go from this ratio
1/2 inch: 18 miles
to this ratio
1 inch: 36 miles
which means that every inch on paper represents 36 miles in real life
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The question is now: if two towns are 2.5 inches apart on paper, then how far are they in real life? (note: 2.5 is the decimal form of 2 and a half)
To find out, multiply both sides by 2.5
1 inch: 36 miles
2.5*(1 inch): 2.5*(36 miles)
2.5 inches: 90 miles
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Answer: The two towns are 90 miles apart in real life
Answer: 
Step-by-step explanation:
Remove all those parentheses by multiplying. Note: 2 and 2 cancel out.
Subtract 2x
Combine like terms;
Divide by -3
Rewriting it;
Answer:
X = 2, 4, 6, 7, 9
Y = 29, 33, 37, 39, 43
Step-by-step explanation:
Given a best fit line of :
y = 2x + 25
Take points X as :
X = 2, 4, 6, 7, 9
X = 2
y = 2(2) + 25 = 4 + 25 = 29
X = 4
y = 2(4) + 25 = 8 + 25 = 33
X = 6
y = 2(6) + 25 = 12 + 25 = 37
X = 7
y = 2(7) + 25 = 14 + 25 = 39
X = 9
y = 2(9) + 25 = 18 + 25 = 43
Answer:
Mary bought 9 Golden Delicious apples
Step-by-step explanation:
This can be solved by setting up a system of equations. Based on the information given, the equations would be set up as follows.
I prefer to solve using substitution, but elimination can be used as well
We can now plug in this g value to the first equation
This means mary bought 13 delicious apples. She bought 22 apples in total, so the total number minus the amount of delicious apples will give us the amount of golden delicious apples.
22 - 13 = g
9 = g
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(x-1)+x+(x+1)=915
3x=915
x=305
304, 305, 306
