2 years ago

Evaluate the expression below x/2 +8y-15 for x = -12 and y=3

Mathematics

1 answer:

jeka942 years ago

3 0

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Sarah ran 1/3 of a mile 5 days in a row. How many miles did she run in total?

Vladimir79 [104]

Answer:5/3

Step-by-step explanation:

you can do 1/3 x5 and that will give you 5/3

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2 years ago

Jessica and nancy are members of different video game libraries. jessica pays a membership fee of $40, and she pays $50 for ever

Nutka1998 [239]

It would be 10 because With Nancy, y=4x+30, 30 is the membership fee which is 10 less than Jessicas membership fee of 40.

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3 years ago

A container built for transatlantic shipping is constructed in the shape of a right rectangular prism. Its dimensions are 7 ft b

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Given:

Dimensions are 7 ft by 5 ft by 8.5 ft

Contents weigh 0.21 pound

Contents worth $8.80 per pound

Find-: value of container contents.

Sol:

Volume is:

$\begin{gathered} Volume\text{ = }7\times5\times8.5 \\ \\ =297.5 \end{gathered}$

The formula of density is:

$\text{ Density =}\frac{\text{ Mass}}{\text{ Volume}}$

So,

$\begin{gathered} 0.21=\frac{\text{ Weight of contents in container}}{\text{ Volume of container}} \\ \\ 0.21=\frac{\text{ Weight}}{297.5} \\ \\ 0.21\times297.5=\text{ Weight} \\ \\ \text{ Weight of contents in container = }62.475\text{ Pound} \end{gathered}$

Now $8.80 per pound

For 62.475 pounds the value is:

$\begin{gathered} =62.475\times8.80 \\ \\ =549.78 \end{gathered}$

So the value of the container contents is 549.78

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10 months ago

Emma has 53 marbles.she gets some marbles from Fred.then she gives 10 marbles to tessie.she now has 58 marbles how many marbles

nata0808 [166]

53+n=(58+10)
n=15
emma got 15 marbles from fred

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2 years ago

NEED HELP!!!!!!!!!!!

lina2011 [118]

Answer:

Step-by-step explanation:

do you want an explanation?

btw, plz brainliest :)

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2 years ago