3 years ago

Charlie wants a new pair of shoes that cost $40 his mom paid 75% of the cost and Charlie pays 25% how much did each pay

Mathematics

1 answer:

swat323 years ago

8 0

His mom paid 30 and he paid 10 I did 40÷4 the got 10 then times by how many 25% each had

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I need some math help

Kobotan [32]

This is an answer should help you

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3 years ago

Please help!!!<br> Which expression is equivalent to (3m^-1n^2)^4/(2m^-2n)^3

Elza [17]

$\text{Use:}\\\\(a\cdot b)^n=a^nb^n\\\\(a^n)^m=a^{n\cdot m}\\\\\dfrac{a^n}{a^m}=a^{n-m}$

$\dfrac{(3m^{-1}n^2)^4}{(2m^{-2}n)^3}=\dfrac{3^4(m^{-1})^4(n^2)^4}{2^3(m^{-2})^3n^3}=\dfrac{81m^{-4}n^8}{8m^{-6}n^3}\\\\=10.125m^{-4-(-6)}n^{8-3}=10.125m^2n^5$

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3 years ago

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Find f (0) if f(t) = t2 – 2t – 5.

Sonbull [250]

Answer is -5.

Explanation- Since t equals 0. You put 0 in place of every t.

0(2)- 2(0)- 5 =
0-0-5= -5

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3 years ago

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Identifiy the initial amount a and the decay factor b in the exponential function y=5×0.5^×

xenn [34]

Answer:

$a=5\\ \\b=0.5$

Step-by-step explanation:

Given the exponential decay function $y=5\cdot (0.5)^x$

When $x=0,$ then

$y=5\cdot (0.5)^0=5\cdot 1=5,$

so the initial amount is $a=5$

The exponential decay function $y=a\cdot b^x$ has the decay factor $b.$

In your case, the eexponential decay factor is $b=0.5$

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3 years ago

Megan hiked 15.12 miles in 6.3 hours. If Megan hiked the same number of miles each hour, how many miles did she hike each hour?

kifflom [539]

15.12 miles/ 6.3 hours= 2.4 miles/hour.

The final answer is 2.4 miles per hour~

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3 years ago