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aksik [14]
3 years ago
6

Can anyone pls help me I really need help pls help me I will mark them as brainiest pls!!! Can u do it in a paper and then send

it to me
(ノ◕ヮ◕)ノ*:・゚✧ ✧゚・: *ヽ(◕ヮ◕ヽ)

Mathematics
1 answer:
Tom [10]3 years ago
6 0

Answer:

see them bellow

Step-by-step explanation:

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Simplify the expression:<br>3(7r + 1) =​
kozerog [31]

Answer:

21r +3

Step-by-step explanation:

3(7r + 1) =​

Distribute

3*7r +3*1

21r +3

8 0
3 years ago
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Help needed fast!!!
kicyunya [14]

Answer:

The answer is A

Step-by-step explanation:

It has to exceed not be same or equal to

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Suppose you worked 4.5 hours today and 2.25 hours yesterday. If you made $87, what were you
Rainbow [258]
$12.89 should be the answer bc 4.5+2.25=6.75 and 87 divided by 6.75 is 12.888888 so i would either round up or down
5 0
3 years ago
A pilot can travel for 140 miles with the wind in the same amount of time as 360 miles against the wind. Find the speed of the w
quester [9]

Answer:

  -88 mph

Step-by-step explanation:

We can use the relation ...

  time = distance/speed

to compare the times in the two directions.

  \dfrac{140}{200+w}=\dfrac{360}{200-w}\\\\140(200-w)=360(200+w)\\\\200(140-360)=w(360+140)\\\\w=\dfrac{200(-220)}{500}=-88 \quad\text{miles per hour}

The wind speed is -88 miles per hour.

_____

The problem statement tells us the travel is slower <em>with</em> the wind than <em>against</em> the wind. Hence "with the wind" must be subtracting from the net speed. That is, the wind speed is negative.

4 0
3 years ago
A circle has a diameter of 14cm. What's the circumfrence?
vesna_86 [32]
I believe that when finding the radius of a circle you half the diameter, but when finding the circumference of a circle you need to multiply the diameter (14cm) by pi.

So 14xpi= 43.98229715

But it can be simplified/ rounded to 44cm.

Of course I might be incorrect so do please correct me if I am wrong.
7 0
3 years ago
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