Answer:
4
Step-by-step explanation:
Parallel lines have the same slope and since the slope of the first line is 4 the second lines slope is also 4
Its 10 times farther because each time you add another exponent, you're multiplying by 10, and so the difference is 1 in this case. Therefore it is C--10
Answer:
x=3
Step-by-step explanation:
2(4-3x)+5(2x-3)=20-5x
8-6x + 10x - 15= 20-5x
subtract 8 from 15
subtract 6x from 10x getting you
4x-7= 20-5x
add 5x to both sides
add 7 to both sides
getting you
9x=27
divide by 9 to both side getting you x=3
Let the calories / hour for hiking = h
Let the calories / hour for canoeing = c
3h + 4 c = 2338
7h + c = 3322 Multiply this by 4
28h + 4c = 13288 Write the first equation underneath this one.
3h + 4c = 2338 Subtract
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25h = 10950 Divide by 25
h = 10950 / 25
h = 438 calories for each hour hiking.
7h + c = 3322
7*438 + c = 3322
3066 + c = 3322
c = 3322 - 3066
c = 256 calories / hour canoeing.
