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Stells [14]
2 years ago
7

If the ratio is a:b=7:4 b:c=2:5 work out a:c=?

Mathematics
1 answer:
frozen [14]2 years ago
6 0

Step-by-step explanation:

a:b=7:4 b:c=2:5

a:c = 7:5

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Find the greatest common factor of 9n and 7n^3
stiks02 [169]
The answer is: GCF(9, +7^3) = 1
Explanation:
9 = 3^2

+7 = +7×7

3 = 3

GCF = 1


9 / 1 = 9

+7 / 1 = 7

3 / 1 = 3

7 0
2 years ago
Is -6.743743… a rational or irrational number?
yaroslaw [1]

It's rational because it contains a repeating digit pattern, 743 (first option).

In particular, if

<em>x</em> = -6.743743…,

then

1000<em>x</em> = -6,743.743743… .

Subtracting, we can eliminate the trailing end and solve for <em>x</em> exactly:

1000<em>x</em> - <em>x</em> = -6,743.743743… - (-6.743743…)

999<em>x</em> = -6,737

<em>x</em> = -6,737/999

8 0
3 years ago
Solve h(x) = 5 - 9x Find h(8)
Alex_Xolod [135]

h(x) = 5 - 9x

h(8) = 5 - 9×8 ( putting value x = 8)

h(8) = 5 - 72

h(8) = -67

Answer is -67.

4 0
3 years ago
Read 2 more answers
Find the missing term and the missing coefficient of the following equation: (6a −______)5a =______a^2 − 35a
sergiy2304 [10]
The missing term in the left side of the equation is 7. Therefore:

(6a-7)5a

On the other hand, the missing coefficient in the right side of the equation is 30. Therefore,

30a^2 - 35a

Combining the left and right sides of the equation:

(6a-7)5a = 30a^2-35a

I hope my answer has come to your help. Thank you for posting your question here in Brainly.


5 0
3 years ago
Read 2 more answers
Y=3x+18 <br> -12x+4y=-24 linear system of equations
solong [7]

Answer:

Step-by-step explanation:

Use substitution, y=3x+18 so -12x+4(3x+18)=-24. From here you can try to solve for x

-12x+12x+72=-24

The xs cancel, which leaves you with 72=-24

Since 72 cannot equal -24 there is no answer to this system of equations

7 0
3 years ago
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