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2 years ago

-15=22x+7 solve for x

Mathematics

2 answers:

DENIUS [597]2 years ago

6 0

Answer:

x = -1

Step-by-step explanation:

-15 = 22x + 7 (subtract 7 from both sides)

-22 = 22x (Divide both sides by 22)

-1 = x (Put the answer back into the equation check that it is correct)

I hope this helped :)

zalisa [80]2 years ago

5 0

Step-by-step explanation:

22x+7= -15

22x= -15 -7

22x = -22

x= -22

x= -1

Hope this helps you dear !

Have a great day :)

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-4|x-11|=-16 solve for x in the equation

BigorU [14]

Answer:

x = 7 and 15

Step-by-step explanation:

Divide both sides by -4...

| x - 11 | = 4

because

| -4 | = 4 and

| 4 | = 4

x - 11 = -4 and x - 11 = 4

solve for x in both equations.

x = 7 and x = 15

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3 years ago

What is two and one-fourth subtracted by one-eighth?

Illusion [34]

Two and one eighth is the answer

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2 years ago

The combined average weight of an okapi and a llama is 450450 kilograms. The average weight of 33 llamas is 190190 kilograms mor

Nataliya [291]

Answer:

Okapi 290 kg

Llama 160 kg

Step-by-step explanation:

Let weight of each llama be $l$

Let weight of each okapi be $o$

Given, combined weight of 1 okapi and 1 llama is 450, we can write:

$l+o=450$

Also, average weight of 3 llama is 190 more than the average weight of 1 okapi, thus we can write:

$3l-190=o$

Now, substituting 2nd equation into 1st equation, we can solve for weight of 1 llama:

$l+o=450\\l+(3l-190)=450\\l+3l-190=450\\4l=450+190\\4l=640\\l=\frac{640}{4}=160$

Each llama weights 160 kg, now using this and plugging into 2nd equation, we get weight of 1 okapi to be:

$o=3l-190\\o=3(160)-190\\o=290$

Each okapi weigh 290 kg

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3 years ago

Audryn left a $12 tip on a $68.73 restaurant bill. What percent tip did she leave? Round to the nearest tenth of a percent.

Andrew [12]

Well, if we take 68.73 as the 100%, how much is 12 of it in percentage?

well $\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
68.73&100\\
12&x
\end{array}\implies \cfrac{68.73}{12}=\cfrac{100}{x}$

solve for "x"

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2 years ago

Read 2 more answers

Betty has 3 cats and 4 dogs. She feeds each of them one scoop of food

lawyer [7]

Answer: 2x(3+4)

Step-by-step explanation: 2x represents the one scoop of food twice a day, and 3+4 represents her 3 cats and 4 dogs.

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2 years ago