3 years ago

How do you do 7-12 cause my math teacher sucks at explaining

Mathematics

1 answer:

Svetach [21]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

imagine a numberline like

-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2- 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13

see how its negative (-) and positive numbers

look at the number 7 and count back 12 to the left.

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Using The exterior angle Theorem solve for the identified angle

Lerok [7]

Answer:

107

Step-by-step explanation:

180-(65+42) = SQR = 73

180-73 = 107

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3 years ago

KIS+KSI=ISK<br> WHAT IS THE NUMBERS?!?!??!?

8090 [49]

Is this a real question ?

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3 years ago

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A rectangle of perimeter 74 cm is 7cm longer than it is wide. what is the length of each side?

Mumz [18]

I assume that you mean: the length is 7cm more than the width, and the perimeter is 74 cm.

If so, we can write down the following system, where l and w represent, respectively, the length and the width:

$\begin{cases}l=w+7\\2(l+w)=74\end{cases} \iff \begin{cases}l=w+7\\l+w=37\end{cases} \iff \begin{cases}l=w+7\\(w+7)+w=37\end{cases}$

We can easily solve the second equation:

$(w+7)+w=37 \iff 2w+7=37 \iff 2w=30 \iff w=15$

And finally solve for the length:

$l=w+7=15+7=22$

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4 years ago

ANSWER FOR 10 POINTS!

dusya [7]

The first one is B. I'm sorry, but I don't know the other 2.

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4 years ago

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John is going to back to that is 18 inches deep he notices that it takes two minutes to fill the bathtub with 3 inches of water

algol13

Yes,

Every 2 minutes = 3 inches of water, so that means every minute = 1.5 inches of water.

So in 10 minutes:

10*(1.5) = 15 inches of water.

So in 10 minutes the tub will fill an additional 15 inches of water which is exactly how much you need to fill up the remaining tub (3+15 = 18)

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3 years ago