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3 years ago

720 brushes decrease by 25%

Mathematics

1 answer:

shutvik [7]3 years ago

6 0

Answer: 720 brushes decrease by 25% = 540

Step-by-step explanation:

25% of 720 is 180

180 multiplied by 4 = 720

take away 180 from 720 = 540

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Need help, I cant simplify this

Kisachek [45]

Answer:

$7^{\frac{2}{5}}$

Step-by-step explanation:

Step 1: First apply radical rule in the given expression.

$\sqrt[n]{a}=a^{\frac{1}{n}}$

Here, $\sqrt[3]{7}=7^{\frac{1}{3}}, \sqrt[5]{7}=7^{\frac{1}{5}}$

The expression becomes $\frac{\sqrt[3]{7}}{\sqrt[5]{7}}=\frac{7^{\frac{1}{3}}}{7^{\frac{1}{5}}}$

Step 2: Now, apply exponent rule in the above expression

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

So, the expression becomes, $7^{\left(\frac{1}{3}-\frac{1}{5}\right)}$ .

Step 3: Take cross multiply the denominator and numerator of the fraction in the power of 7.

$\Rightarrow 7^{\left(\frac{1}{3}-\frac{1}{5}\right)}=7^{\left(\frac{5-3}{15}\right)}=7^{\frac{2}{5}}$

The answer is $7^{\frac{2}{5}}$ .

Hence the simplified form of $\frac{\sqrt[3]{7}}{\sqrt[5]{7}}=7^{\frac{2}{5}}$ .

3 0

3 years ago

Find the measure of two supplementary angles, C and D, if C=6x-4 and D=4x+9

Anastaziya [24]

Answer:

x = 17.5 mm

Step-by-step explanation:

Supplementary means that two angles adds up to 180 degrees.

If C and D are supplementary, that means that they equal to 180 degrees.

Combine like terms: 6x - 4 + 4 + 4x + 9 - 9 = 180 + 4 - 9

10x / 10 = 175 / 10

x = 17.5

So, x = 17.5 mm

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3 years ago

What is 370 by the power of 90

Nikitich [7]

its a really big #

1.37453298E231

^ is ur answer

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ale4655 [162]

Answer:

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Step-by-step explanation:

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3 years ago

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