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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

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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3 years ago

Read 2 more answers

Let u = <-9, 4>, v = <8, -5>. Find u - v. <br> URGENT

Pie

To subtract vectors, you simply have to subtract correspondent coordinates.

So, if you have

$u = \langle u_1,\ u_2,\ldots u_n\rangle ,\quad v = \langle v_1,\ v_2,\ldots v_n\rangle$

the subtraction is simply

$u-v = \langle u_1-v_1,\ u_2-v_2,\ldots u_n-v_n\rangle$

So, in your case, we have

$\langle-9,4\rangle-\langle 8,-5\rangle=\langle -9-8, 4+5\rangle=\langle -17,9\rangle$

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3 years ago

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kozerog [31]

Well that friend should write p + 6 after combining like terms and simplifying

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