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maw [93]
3 years ago
12

Judy pays $29 for 8 gallons of gas and 2 bottles of water. Carmen pays $45 for 12 gallons of gas and 4 bottles of water. How muc

h does one gallon of gas cost? How much does 1 bottle of water cost?
Mathematics
1 answer:
Dmitry [639]3 years ago
5 0
G=gas
w=bottle of water

8g + 2w = 29
12g + 4w = 45
I'm going to use elimination to cancel out the variable w by multiplying the first equation by -2.

-16g - 4w = -58
12g + 4w = 45
-4g = -13
/-4 /-4
g = 3.25

Now plug it into an equation, any equation.
8 (3.25) + 2w = 29
26 +2w=29
w=1.5
Now to check, plug it into both equations if you want.

12 (3.25) + 4 (1.5)=45
39 + 6=45

One bottle of water is $1.50, while one gallon of gas is $3.25.
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2 years ago
If log 5 = p and log 2=q then log 200 can be written in terms of p and q as?
Andrei [34K]
<h3>Answer:  2p + 3q</h3>

Work Shown:

log(200) = log(2^3*5^2)

log(200) = log(2^3) + log(5^2)

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The log rules I used were

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8 0
2 years ago
I need help with 4 and 5
krok68 [10]
4)
area of figure = bh = 8x10 = 80
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a trapezoid with bases of 6 mm and 14 mm and a height of 8 mm

5)
area of original figure A = bh = 8 x 10 = 80
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answer is C.
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3 years ago
Measure the length of the top of your desk in centimeters. Describe how you found the length
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Answer:

55 centimeters

Step-by-step explanation:

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