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3 years ago

What does x equal? Explain how you got the answer.

Mathematics

2 answers:

AlladinOne [14]3 years ago

8 0

Answer:

x = -5

Step-by-step explanation:

so you need to get x by itself, so you will first subtract(8-8) and (-2 - 8). This will cancel out 8 and give you, 2x=-10. Then you will divide(2x÷2) and (-10÷2). This will cancel out the 2 and leave you with x=(-5)

PilotLPTM [1.2K]3 years ago

5 0

X= -5
Because
You need to try and get x by it self so subtract -2 by 8 and you get -10 then do 2 divided by -10 and you get -5
Sorry if it doesn’t make sense

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What is the square root of 3454?

Jlenok [28]

Answer: 58.7

Step-by-step explanation:

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3 years ago

A small plane flew 808 miles in 4 hours with the wind. Then on the return trip flying against the wind it travels only 488 miles

Blababa [14]

Answer:

Step-by-step explanation:

let wind velocity=x

speed of plane=y

(x+y)*4=808

x+y=808/4=202 ...(1)

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add (1) and (2)

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from (1)

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8 0

3 years ago

.45 is 1/10 of what decimal?

Butoxors [25]

Answer:

4.5

Step-by-step explanation:

To get the answer, you have to multiply the number 0.45 by the denominator of 1/10. [The denominator is 10.]The reason for this is because 10 is the whole number of parts. When you multiply 1/10 x 0.45, you get 4.5 [Just move the decimal point one place to the right because 10 has one zero.]

To double check your answer, divide 4.5 by 10 or multiply 4.5 x 1/10. Either way you get 4.5, so that's the correct answer.

I hope this helps!

6 0

3 years ago

Write with fractional exponents.

marusya05 [52]

Hi there!

»»————-　★　————-««

I believe your answer is:

$y^\frac{2}{3}$

»»————-　★　————-««

Here’s why:

We are supposed to rewrite a radical expression as an expression with fraction exponents.

⸻⸻⸻⸻

The rule for a fraction exponent is:

$a^{\frac{x}{y}}=\sqrt[y]{a^x}\\\\\\\huge\boxed{\frac{\text{Power}}{\text{Root}}}$

⸻⸻⸻⸻

We are given the expression of $\sqrt[3]{y^2}$ .

⸻⸻⸻⸻

$\boxed{\text{Rewriting the expression:}}\\\\\sqrt[3]{y^2}\\\\\text{The '3' is the root and the '2' is the power.}\\\\\rightarrow \sqrt[3]{y^2} \\\\\rightarrow {y^{\frac{2}{3}}$

⸻⸻⸻⸻

$\text{The answer should be: } \boxed{y^\frac{2}{3} }$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

7 0

3 years ago

A silversmith combined pure silver that cost $33.48 per ounce with 51 oz of a silver alloy that cost $24.35 per ounce. How many

Pavlova-9 [17]

Answer:

$38.31

Step-by-step explanation:

Given:

Pure silver that cost $33.48 per ounce used to form $24.35 alloy/ounce.

Question asked:

How many ounces of pure silver were used to make an alloy of silver costing $27.87 per ounce?

Solution:

At cost $24.35/ounce, pure silver is mixed = $33.48

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Thus, $38.31 ounces of pure silver were used to make an alloy of silver costing $27.87 per ounce.

5 0

3 years ago

What does x equal? Explain how you got the answer.​

What does x equal? Explain how you got the answer.