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lianna [129]
2 years ago
13

Solve the system by substitution.

Mathematics
1 answer:
Alika [10]2 years ago
5 0

x = 8

Step-by-step explanation:

I'm not good so it might not be right but let me know

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What is 3/4 of 16/21? worked out please
timofeeve [1]
Of means multiplication

So

\frac{3}{4} \sf{of}  \frac{16}{21}  =  \frac{3}{4} \times  \frac{16}{21}

And then simplify the numerator ad denominator

= \frac{3 \times 16}{4 \times 21} =  \frac{\ 1 \times 16}{4 \times 7}

And simplify the numerator and denominator again

= \frac{\ 1 \times 16}{4 \times 7} = \frac{\ 1 \times 4}{1 \times 7}

And we are finally left with the answer which is \frac{4}{7}
5 0
4 years ago
In a right triangle ABC angle B is the right angle and m angle C = 30 degrees if AC = 10 what is AB
Sindrei [870]

Answer:

  • AB = 5

Step-by-step explanation:

This is a 30°-60°-90° right triangle.

AC is hypotenuse, AB is opposite side to 30° angle.

We know that in such a triangle the side opposite to 30° angle is half the hypotenuse.

<u>So we have:</u>

  • AB = 1/2AC = 1/2(10) = 5
8 0
3 years ago
Guys I need your help
vesna_86 [32]

Answer:

5x - 2 = 3x = 14

8x -2 = 14

8x = 14 + 2

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x = 2

Step-by-step explanation:

6 0
3 years ago
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What is 144 divided by 960?Working out is needed.
Ipatiy [6.2K]

Answer:

The answer is 0.15

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
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PLEASE HELP ME
lyudmila [28]
As seen, the graph is pointing/increasing upwards. This means that the graph is exponentially increasing. 

You notice there are significantly more spores at 4th hour than the first, therefore, this is an increasing trend. 

Hope I helped :) 
6 0
4 years ago
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