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aivan3 [116]
3 years ago
12

By selling old cd's, sarah has a store credit card for $153.a new cd costs $18 .what are the possible numbers of new cd's sarah

can buy
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0
You do 153 ÷ 18 = 8.5, and because you can't have 0.5 of a CD, the answer is 8. Hope this helps!
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Irina-Kira [14]

Step-by-step explanation:

–6(x + 5) + 3 = –2(x + 4) – 4x

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5 0
3 years ago
When the sun is at a certain angle in the sky, a 50-foot building will cast a -foot shadow. What is the length of the shadow in
Serhud [2]

Answer:

0.40 foot

Step-by-step explanation:

In the first case, a 50 - foot building casts a- foot shadow (1-foot). Let the angle of elevation of the sun from the shadow be represented by θ.

Then:

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Tan θ = 50

⇒ θ = Tan^{-1} 50

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The angle of elevation is approximately 88.85^{o}.

For a 20-foot pole,

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x = \frac{20}{Tan 88.85^{o} }

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The length of the shadow of the pole is 0.40 foot.

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KATRIN_1 [288]

Answer:

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