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2 years ago

Can someone help me with those word problems please

Mathematics

1 answer:

Keith_Richards [23]2 years ago

5 0

For the first one, subtracting the membership fee, we have 9 dollars to buy as many 1.50 dollar videos as possible. 9/1.50 works well as 6, so he can buy 6.

Subtract 160 from 480 to get 320, and divide that by 80 to get 4 days

We can do some guess and check here. If he buys 2 t shirts, that's 12*2=24 and 41-24=17. 17 is not a factor of 5, so that doesn't work. If he buys 3, that's 12*3=36 and 41-36=5. 5 is a factor of 5, so that works!

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If sinA=1/2 what is cosA

sergejj [24]

Answer:

$\frac{\sqrt3}{2}$

Step-by-step explanation:

$sin(A)=\frac{1}{2}$

$A = \frac{\pi}{6}$ //this is retrieved from looking at the unit circle

$cos(A) = cos(\frac{\pi}{6}) = \frac{\sqrt3}{2}$

4 0

3 years ago

Need help with all , 50 points.

melisa1 [442]

Answer:

I know the answers but why not atleast try to do it by yourself first. Math is really fun once you start trying it.

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2 years ago

What construction tool would be used to measure an angle?

iVinArrow [24]

Answer:

A protractor.

Step-by-step explanation:

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3 years ago

Solve the system of linear equations below.

sergiy2304 [10]

Answer:

Step-by-step explanation:

Let's use the addition/elimination method to solve this. If we multiply the first equation through by -1 we can eliminate the x terms. Doing that gives us:

-x + 3y = 3

x + 3y = 9

The x's subtract each other away leaving us with

6y = 12 so

y = 2.

Now we will plug in 2 for y in either of the original equations to solve for x:

x + 3(2) = 9 and

x + 6 = 9 so

x = 3

The coordinate for the solution is (3, 2) or x = 3, y = 2

The second choice down is the one you want.

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3 years ago

deahawn has a box of crackers shaped in a rectangular prism. The volume of crackers is 432 inches the area of the base 32 inches

iogann1982 [59]

432/32 = 13.5 inches cubed

3 0

3 years ago