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Goshia [24]
3 years ago
7

Jim scores the following marks in 8 tests.

Mathematics
1 answer:
belka [17]3 years ago
5 0

Answer:

7.5

Step-by-step explanation:

7+8+y+6+9+10+5=7.5×2

45+y=52.5

y=52.5–45

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in 2005, musicmart sold 12,000 cds. in 2010, they sold 14,550 cds. what is the rate of change in the number of cds sold?
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shepuryov [24]
\frac{a^{12}b^{8}}{a^{2}b^{4}}



remember
(ab)/(cd)=a/c times b/d

also \frac{x^{m}}{x^{n}}= x^{m-n}

split it up with like terms

\frac{a^{12}}{a^{2}} times \frac{b^{8}}{b^{4}}

do subtraction
for a's
12-2=10

b's
8-4=4

answe is a^{10}b^{4}

first one

5 0
4 years ago
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