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eduard
3 years ago
5

Andros has an oil fired heating system. In a 30-day period he used a full tank of oil at a constant rate per day. At a different

time of the year the amount of oil Andros uses per day is 1 3 of the rate used in the 30-day period. (a) How many days should a full tank of oil?
Mathematics
1 answer:
Bingel [31]3 years ago
3 0

Step-by-step explanation:

30 days period multiply by 7 days

=210 therefore our answer is =210

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A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the
GrogVix [38]

s +h = 1070 ( total number of downloads)

Rewrite as s =1070 - h

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Substitute:

2.9(1070-h) + 4.4h = 4393

Simplify:

3103 - 2.9h + 4.4h = 4393

Combine like terms:

3103 + 1.5h = 4393

Subtract 3103 from each side:

1.5h = 1290

Divide both sides by 1.5:

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h = 860

Replace h with 860 in first equation to solve for s:

s + 860 = 1070

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3 years ago
Write the expanded form of the expression. 6(4x - 8) simplify your answer.
Lynna [10]

Answer:

Step-by-step explanation:

Use distributive property,

a*(b - c) =a*b - a*c

6(4x  - 8) = 6*4x - 8*6

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5 0
2 years ago
Which of the following functions has a horizontal asymptote at y = 2?
Leona [35]

Answer: The first graph

Step-by-step explanation:

An asymptote is an imaginary line that the function is approaching but never reaching. y=2 is a horizontal line. Therefore by looking at the graphs, the first graph shows the two functions never approaching 2, but gets very close to it. Therefore it is the first graph.

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3 years ago
8,264 is divisible by 3? True or false?
mars1129 [50]
Number\ is\ divisible\ by\ 3\ if\ the\ sum\ of\ the\ digits\ is\ divisible\ by\ 3.\\\\8,264\\\\8+2+6+4=20-
is\ not\ divisible\ by\ 3.\\\\8,264\ is\ divisible\ by\ 3-FALSE
7 0
3 years ago
Read 2 more answers
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Lelu [443]

Answer:

x = -4

Step-by-step explanation:

f(x) = x² - 16

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Therefor the negative zero is

x = -4

8 0
3 years ago
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