6th out 10 questions

Mathematics

2 answers:

kicyunya [14]2 years ago

6 0

The ratio would be C=16/20

konstantin123 [22]2 years ago

4 0

Equivalent ratios are created by multiplying both numbers in the ratio by the same value. In the first ratio, 15 = 5 x 3, but 10 ≠ 4 x 3, so it's not equivalent to 4:5. In 4/10, 4 = 4 x 1, but 10 = 5 x 2, so again, the two aren't equivalent.

In 16/20, though, we find that 16 = 4 x 4 and 20 = 5 x 4. Since both the 4 and the 5 are being scaled up by the same factor, 16/20 is equivalent to 4:5.

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What is the solution to the system of equations below?

Lelechka [254]

Answer:

Step-by-step explanation:

For x+3y=15

Take (6,3) and substitute the points:

6+3(3)=15

6+9=15

15=15

For 4 x + 2 y = 30 and substitute the points:

4(6)+2(3)=30

24+6=30

30=30

So, (6,3) is the solution of the given system of equations.

<h3>If you need to ask any questions, let me know.</h3>

6 0

1 year ago

What is the equation of the line that passes through the points (4, 5) and (7, 3)

swat32

Answer:

y = -2/3x + 23/3

Step-by-step explanation:

Let equation of the line be y = mx + c

m = (3-5)/(7-4) = -2/3 gradient/slope formula

sub (4, 5)

5 = -2/3 (4) + c

c = 23/3

therefore, equation of the line is y = -2/3x + 23/3

Hope it helps! :)

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7 0

2 years ago

-2.5 (4x-3)<br> combine like terms to create and equivalent expression

aev [14]

The answer for this is 4x+7.5

6 0

2 years ago

Read 2 more answers

Solve the inequality 3x - 5 < 4.

lbvjy [14]