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3 years ago

How much would you pay for 12.5 gallons of gasoline at $2.20per gallon?

Mathematics

1 answer:

horsena [70]3 years ago

4 0

Answer:

$27.5

Step-by-step explanation:

12.5 x 2.20 = 27.5

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an iron cube measures 10cm by 10cm by10cm. what is its volume? if the same iron cube weights 7.9 kg, what is its density in g/cm

7nadin3 [17]

Is there an image you can attach?

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3 years ago

Let u = <-9, 4>, v = <8, -5>. Find u - v. URGENT

Pie

To subtract vectors, you simply have to subtract correspondent coordinates.

So, if you have

$u = \langle u_1,\ u_2,\ldots u_n\rangle ,\quad v = \langle v_1,\ v_2,\ldots v_n\rangle$

the subtraction is simply

$u-v = \langle u_1-v_1,\ u_2-v_2,\ldots u_n-v_n\rangle$

So, in your case, we have

$\langle-9,4\rangle-\langle 8,-5\rangle=\langle -9-8, 4+5\rangle=\langle -17,9\rangle$

3 0

3 years ago

Kameryn types 75 words per minute and is just starting to write a term paper. Joe already has 510 words written and types at a s

AnnZ [28]

Answer:

Kameryn will have more words typed than Joe when the number of minutes exceeds 34.

Step-by-step explanation:

Let

x -----> the number of minutes

y ----> the total words typed

we know that

Kameryn

$y=75x$ -----> equation A

Joe

$y=60x+510$ -----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B and solve for x

$75x=60x+510$

$75x-60x=510$

$15x=510$

$x=34\ minutes$

That means

For x=34 minutes

The amount of words written by Kameryn and Joe are the same.

therefore

For x > 34 minutes

Kameryn will have more words typed than Joe when the number of minutes exceeds 34.

6 0

4 years ago

On the three quizzes so far, Eric has scored 75, 92, and 83. What must he score on the fourth

AVprozaik [17]

He can make a 70 or higher to keep a B avg.

3 0

3 years ago

I do not know if is a function or not. Please explain

bezimeni [28]

It is a function because in a function the x's do not repeat. So since there are no two numbers in the x column that are the same, yes it is a function.

8 0

3 years ago