2 years ago

A letter/symbol that takes place of an unknown number?

2 answers:

7 0

This is called a variable and some examples would be almost any letter depending on the question but the most common letters would be X and Y

densk [106]2 years ago

3 0

Answer: A variable

Step-by-step explanation:

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39 ft/min= ____ yd/s explain your reasoning

givi [52]

Answer:13 yards

Step-by-step explanation:

There are 3 feet in one yard 39 divided by 3 is 13. So 39 feet is 13 yards

6 0

3 years ago

Read 2 more answers

Is x=12 a solution to the given inequality x > 5

Ludmilka [50]

Answer: True

Step-by-step explanation:

Substitute 12 for x in the inequality

x > 5

12 > 5

12 is greater than 5 so x = 12 is a solution to x > 5

4 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B125%20%7D%20-%20%5Csqrt%7B180%7D%20%2B%20%5Csqrt%7B45%7D%20" id="TexFormula1" tit

Kobotan [32]

Answer:

2 $\sqrt{5}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying the radicals

$\sqrt{125}$ = $\sqrt{25(5)}$ = $\sqrt{25}$ × $\sqrt{5}$ = 5 $\sqrt{5}$

$\sqrt{180}$ = $\sqrt{36(5)}$ = $\sqrt{36}$ × $\sqrt{5}$ = 6 $\sqrt{5}$

$\sqrt{45}$ = $\sqrt{9(5)}$ = $\sqrt{9}$ × $\sqrt{5}$ = 3 $\sqrt{5}$

Thus

$\sqrt{125}$ - $\sqrt{180}$ + $\sqrt{45}$

= 5 $\sqrt{5}$ - 6 $\sqrt{5}$ + 3 $\sqrt{5}$

= 2 $\sqrt{5}$

3 0

3 years ago

A plant used to be 11 inches has grown to 17 inches tall.what is the percent increase of the height of the plant

tia_tia [17]

Answer:

54.5%

Step-by-step explanation:

7 0

3 years ago

3.8 to the nearest hundredth

liberstina [14]

The answer 3.8 to the nearest hundreds is 3,800

6 0

3 years ago