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3 years ago

Can someone help me with this question 2x+3=15 is x

Mathematics

2 answers:

MArishka [77]3 years ago

7 0

Answer:

x=6

Step-by-step explanation:

2x+3=15

subtract 3 on both sides

2x=12

x=6

kirza4 [7]3 years ago

6 0

The answer is 6, because 15-3 is 12, and to get 12, you would have to do 2•6, so (2•6)+3=15. So, x=6.

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Viefleur [7K]

Answer:

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Step-by-step explanation:

This is an impulse purchase since Ronnie didn't plan to by the stereo before entering the store. An impulse purchase comes from the word impulse I.e sudden urge leading to a prompt action. An impulse purchaser does not budget for whatever they buy rather are influenced by their emotions. If they're attracted to that item, they'll buy it instantly.

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4 years ago

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3 years ago

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Papessa [141]

Answer:

The answer is D

Step-by-step explanation:

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3 years ago

The expression 210,000\left(1.02\right)^x210,000(1.02)

Bad White [126]

Answer:

The house is increasing in value by 2% each year.

Correct the increase is 1.02 per year the value of b>0 and the percentage of increase each year is:

$\frac{1.02-1}{1} *100 = 2\%$

Step-by-step explanation:

For this case if we have this expression

$210000(1.02)^x$

We have the same functional forma like the exponential model given by:

$y = a b^x$

Where a = 210000 represent the constant or initial value and b = 1.02 represent the base.

So let's analyze the possible options:

The house has a starting value of 1.02.

False the starting value for this case is 210000 since if x=0 then we see that the value is 210000

The house is decreasing in value by 2% each year.

False the increase is 1.02 each year so then in % we have

$\frac{1.02-1}{1} *100 = 2\%$

We have an increase of 2% each year

The house is increasing in value by 2% each year.

Correct the increase is 1.02 per year the value of b>0 and the percentage of increase each year is:

$\frac{1.02-1}{1} *100 = 2\%$

The value of the house is changing by 0.02% each year.

False the increase is 2% per year

4 0

3 years ago

5, 3 = 28<br> 7,6 = 55<br> 4,5 = 21<br> 3,8 = ?

olga nikolaevna [1]

Answer:

3,8 =

Step-by-step explanation:

3 X 3 + 8 = 9 + 8 = 17

Square the first number and add the second number to it.

3 0

3 years ago