2 years ago

Please help! i'll mark brainliest <3

Mathematics

1 answer:

Inessa [10]2 years ago

7 0

Answer:

The piano is 5.1 feet wide.

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Explain why the equation x+2=x+3 has no solution

Orlov [11]

It has no solution because x is always the same amount. So.. for example.
lets say x = 10.

then it would be 10 + 2 = 10 + 3.
12 doesnt = 13. :)

5 0

2 years ago

Simplify the expression. 8x^-10 y^'6 -2x^2y^-8 Write your answer without negative exponents.

sergij07 [2.7K]

Answer:

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^{14} - 2x^{12}}{x^{10}y^8}$

Step-by-step explanation:

Given

$8x^{-10}y^6 - 2x^2y^{-8}$

Required

Simplify

Rewrite as:

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^6}{x^{10}} - \frac{2x^2}{y^8}$

Take LCM

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^6*y^8 - 2x^2 * x^{10}}{x^{10}y^8}$

Apply law of indices

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^{14} - 2x^{12}}{x^{10}y^8}$

8 0

2 years ago

There are 84 boys in a senior class of 146 students. find the ratio of boys to girls. (note: if you know the total number of stu

vladimir1956 [14]

84 to 62. You have to subtract 146-84 to get the number of girls from the class.

4 0

3 years ago

Need help plz help me

forsale [732]

8200? 82,000? 820,000?

4 0

3 years ago

ales tax is calculated as a percentage of the sales price. If sales tax is 7%, what is the sales tax on clothing that costs $150

Aneli [31]

Answer:

7% of 150= 10.5 :)

Step-by-step explanation:

150/x=100/7

(150/x)*x=(100/7)*x - we multiply both sides of the equation by x

150=14.2857142857*x - we divide both sides of the equation by (14.2857142857) to get x

150/14.2857142857=x

10.5=x

x=10.5

now we have:

7% of 150=10.5

4 0

2 years ago