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2 years ago

X=7 what is 3x pleasee help i need this by tomorrow

Mathematics

1 answer:

Romashka [77]2 years ago

4 0

Answer:

$x = 7 \\ 3x = 3(7) = 21$

hope helpful <3

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If an elephant could eat 2,500 pounds of food in 10 days how much can it eat in 1,000 days

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The elephant could eat 250,000 pounds of food in 1000 days

Step-by-step explanation:

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2 years ago

It will cost Amber an estimated $3,723 a year in tuition to attend her preferred college. She has been putting $350 a month in a

kenny6666 [7]

Answer:

Yes; she will have $4008 for other expenses.

Step-by-step explanation:

First you find out how much she saved by multiplying 350 by 36 as she saved for 3 years which is 36 months.

$350 \times 36 = 12600$

After that you need to work out the amount she needs in total for her tuition by multiplying 4 by 3723 which is the amount needed per year.

$3723 \times 4 = 14892$

If her parents add to her account half the amount she saved that means that they give her an additional 6300 as that's half of 12600.

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3 years ago

Basketball shoes are on sale for 22% off. What is the regular price if the sale price is $42?

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x =53.85

Step-by-step explanation:

Let x be the original price

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2 years ago

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Jenna bought a golf club that was marked down 20% from an original price of $75. If she paid 5% sales tax, what was the total co

Oksana_A [137]

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3 years ago

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Determine whether each relation is a function. Give the domain and range for each relation.

brilliants [131]

Answer:

Not a function

Domain: {3,4}

Range: {4,5}

Step-by-step explanation:

A function is a relation where each input has its own output. In other words if the x value has multiple corresponding y values then the relation is not a function

For the relation given {(3, 4), (3, 5), (4, 4), (4, 5)} the x value 3 and 4 have more than one corresponding y value therefore the relation shown is not a function

Now let's find the domain and range.

Domain is the set of x values in a relation.

The x values of the given relation are 3 and 4 so the domain is {3,4}

The range is the set of y values in a relation

The y value of the given relation include 4 and 5

So the range would be {4,5}

Notes:

The values of x and y should be written from least to greatest when writing them out as domain and range.

They should be written inside of brackets

Do not repeat numbers when writing the domain and range

3 0

2 years ago

X=7 what is 3x pleasee help i need this by tomorrow ​

X=7 what is 3x pleasee help i need this by tomorrow