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forsale [732]
3 years ago
7

A first number plus twice a second number is 24. twice the first number plus the second totals 21. find the numbers.

Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0
We do like the following:
Set the first number is a and the second is b.
We have two equations: a+2xb=24, 2xa+b=21
And we have 2xa+4xb=48 or 2xa=48-4xb
So: 48-4xb+b=21 or -3xb=21-48=-27 and we got b=-27:(-3)=9 and a= 6
a=6 and b=9
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Please help ASAP!!!!!!!
JulsSmile [24]

Answer:

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Step-by-step explanation:

Using the given formula, we want to compute A for ...

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For 30 days late:

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The difference in these payment amounts is ...

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<em>Comment on the question</em>

It would be a poor choice of credit card to use one that compounds interest daily. Most do so on a monthly basis.

5 0
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Mice21 [21]

Answer:

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7 0
3 years ago
The rule for Function A is y= -2/3x
Rom4ik [11]

Answer:

Both functions have negative rates of change

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Step-by-step explanation:

we know that

<em>Function A</em>

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This is the equation of a proportional relationship (the line passes through the origin)

The slope is equal to m=-\frac{2}{3}

<em>Function B</em>

Find the equation of the function B

we have the points (-2,0) and (0,-2)

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The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

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y=mx+b

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m=-1\\b=-2

substitute

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<u><em>Verify each statement</em></u>

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Option 2) Both functions have the same rate of change.

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Option 3) When graphed, Function A and Function B are parallel

The statement is false

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Answer:

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