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slamgirl [31]
3 years ago
10

Simplify by distributing: 3(x + 4)

Mathematics
1 answer:
larisa86 [58]3 years ago
7 0

Answer:

3x+12

Step-by-step explanation:

distribute

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Need help ASAP, I do not understand this one.
taurus [48]
2y+20=100
2y=80
y=40

The explanation for this would because because the two base angles of an isosceles triangle are equal so since the both equal to 40 degrees, in total would be 80 degrees.

Since the total degrees of a triangle is 180 and you know the base angles make up for 80 percent you subtract that from the total of the angle your trying to find, which is 2y+20.
6 0
3 years ago
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In a right triangle, one of the exterior angles measures 155°. What is the measure of the non-adjacent, non-right angle?
tangare [24]
180 - 155 = 25
90 - 25 = 65
<span>B: 65 </span>°
3 0
3 years ago
jake went on a road trip with his family this summer. On Monday, they drove 629 miles. Tuesday, they drove 215 miles. On Wednesd
Charra [1.4K]
Jake’s family traveled a total of 1,543 miles
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2 years ago
How can you tell that a fraction is a unit fraction
a_sh-v [17]
You can tell that a fraction is a unit fraction when it is over a unit of one. This is also known as unit rate.
6 0
3 years ago
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I was walking to the store at the same time as my friend Angela. No matter what, She has always gotten there twice as fast as me
atroni [7]
Let's call your speed "a"

her walking speed is then "2a"

and her friend's scooter speed is 10 a

let's also call the distance you need to walk "d"

so the time (t)you need is:

d/t=a
t=d/a

and her time is:
 t=\frac{d}{2} /2a+ \frac{d}{2} /10a
(half a distance with the speed of 2a and half a distance (d/2) with the distance of 10 a

now we count (we know that her time is 30 minutes)

30= \frac{d}{4a}+\frac{d}{20a} //multiply by 20a

600a= 5d+d
600a=6d/divide by 6
100a=d

Now, in order to calculate your time we need to calculate:

t=d/a

but we know how much is d now!
t=\frac{100a}{a}=100

which means that you need 100 minutes, or 1 h 40 minutes!!!

6 0
2 years ago
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