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2 years ago

K-mart buys lego solar systems for $165 and marks them up 3/5 of the price. How much do they sell for?

Mathematics

1 answer:

evablogger [386]2 years ago

7 0

They would sell, for 99 dollars.

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Jennie makes quilts. She can make 7 quilts with 21 yards of material. How many yards of material would be required to make 12 qu

nlexa [21]

$\frac{7}{21} = \frac{12}{yards} \\ \\ 7*yards=21*12 \\ \\ 7yards=252 \\ \\ yards=36$

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3 years ago

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If one yard equals 3 ft in one mile equals 5280 ft how many yards are there in 2 miles

Georgia [21]

Answer:

2 miles = 3520 yards

Step-by-step explanation:

1 mile = 1760 yards

2 miles = 3520 yards

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2 years ago

Twenty six equals eight plus v

Mumz [18]

18. You can do this in a calculator. 26 - 8 = 18. v = 18.

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3 years ago

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Prove divisibility 45^45·15^15 by 75^30

Anuta_ua [19.1K]

Answer:

$3^{75}$

Step-by-step explanation:

We are asked to divide our given fraction: $\frac{45^{45}*15^{15}}{75^{30}}$ .

We will simplify our division problem using rules of exponents.

Using product rule of exponents $(a*b)^n=a^n*b^n$ we can write:

$45^{45}=(3*15)^{45}=3^{45}*15^{45}$

$75^{30}=(5*15)^{30}=5^{30}*15^{30}$

Substituting these values in our division problem we will get,

$\frac{3^{45}*15^{45}*15^{15}}{5^{30}*15^{30}}$

Using power rule of exponents $a^m*a^n=a^{m+n}$ we will get,

$\frac{3^{45}*15^{45+15}}{5^{30}*15^{30}}$

$\frac{3^{45}*15^{60}}{5^{30}*15^{30}}$

Using quotient rule of exponent $\frac{a^m}{a^n}=a^{m-n}$ we will get,

$\frac{3^{45}*15^{60-30}}{5^{30}}$

$\frac{3^{45}*15^{30}}{5^{30}}$

Using product rule of exponents $(a*b)^n=a^n*b^n$ we will get,

$\frac{3^{45}*(3*5)^{30}}{5^{30}}$

$\frac{3^{45}*3^{30}*5^{30}}{5^{30}}$

Upon canceling out $5^{30}$ we will get,

$3^{45}*3^{30}$

Using power rule of exponents $a^m*a^n=a^{m+n}$ we will get,

$3^{45+30}$

$3^{75}$

Therefore, our resulting quotient will be $3^{75}$ .

8 0

2 years ago

Solve what is 1/2 x 15

Andreas93 [3]

Answer:

7.5

Step-by-step explanation:

it's basically just 15 divided by 2

8 0

2 years ago