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Sergeeva-Olga [200]
3 years ago
7

Pls help I need a good grade asap

Mathematics
2 answers:
Kipish [7]3 years ago
7 0

Answer:

8n+12=36, triplets are 8 years old

Step-by-step explanation:

total age is 36

one of them is 12 years old so -> 36-12 = 24

three triplets so 24/3 = 8

there are three 8 years olds and one 12 year old. n = 3

lions [1.4K]3 years ago
6 0

Answer:

Step-by-step explanation:

3n + 12 = 36

3n = 24

n = 8 (the triplets)

another child: 12 years

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A bag contains 36 marbles. 10 marbles are green, 6 marbles are blue, 18 marbles are yellow, and 2 marbles are purple.
alexdok [17]

Answer:

10/72 or 0.14

Step-by-step explanation:

There are 72 marbles in total and 10 of them are green. So, it is 10/72 or 1.388 rounded to the nearest hundredth is 0.14.

7 0
2 years ago
What is the arc length when θ = and the radius is 7 cm? (5 points)
maw [93]
<span>What is the arc length when Θ=3 pi/5 and the radius is 7 cm?
</span><span>Here are the available answers... 21pi/5 cm 12pi/5 cm 6pi/5 cm 3pi/35 cm
</span>
Given:
arc length = theta * radius
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4 0
3 years ago
Find angles a, b and c? <br> Please help.
laiz [17]

Answer:

B=112 degrees A=68 degrees and C=68 degrees

Step-by-step explanation:

the opposite angle of the 112-degree angle is the angle on the top left of the page, this means both of the angles are the same. You can then tell that that angle is the same as the one across from it because it shows on the page.  You can then figure out the opposite angle which is B so that means angle B is equal to 112 degrees. To figure out angle A you can just do 180 minus the angle B which is 112 degrees. You now know angle A which is 68 degrees, now to find the angle C you just have to notise that angle C is the opposite angle of angle A. This means that algle C is also 68 degrees.

8 0
3 years ago
Read 2 more answers
Helpppppppppppppppppp pls​
BartSMP [9]

Answer:

b=30

Step-by-step explanation:

The angle here is a right angle which is an angle that equals 90 degrees. You subtract that measure of the angle by 60 and you end up with 30.

7 0
3 years ago
HELP PLEASE I NEED A ANSWER ASAP
nata0808 [166]

Answer:

5x+6+48+81=180°

5x+135=180

5x=45

x=9

Step-by-step explanation:

I HOPE it will help you

8 0
3 years ago
Read 2 more answers
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