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Archy [21]
3 years ago
5

FOR 12 POINTS I NEED HELP ASAP! Consider the system of linear equations. 5 x + 10 y = 15. 10 x + 3 y = 13 To use the linear comb

ination method and addition to eliminate the x-terms, by which number should the first equation be multiplied? –2 Negative one-half One-half 2
Mathematics
1 answer:
Romashka [77]3 years ago
8 0

Answer:

Do you mean which equation should the 5x+10=15 be multiplied to?

it would be -2

Step-by-step explanation:

This is because 5 times -2 is -10

and so when you add the (now) x value of the first equation to the x value of the second equation, it gets 0

which makes it eliminated!

-10x+10x=0

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valentinak56 [21]

Answer: A) 0.18 cm²

Step-by-step explanation:

To calculate the area of a parallelogram you must apply the formula shown below:

A=b*h

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You know the values of the base and the value of the height.

Therefore, when you susbstitute these values into the equation shown above, you obtain the following result:

A=0.56*0.33cm=0.18cm^{2}

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3 years ago
One year, the population of a city was 352,000. Several years later it was 337,920.
kvasek [131]

hi

here is  the  method :

you take  Value 1  and Value 2

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Here we have :    Value 1 = 352 000

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You can also make :  

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1 year ago
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GrogVix [38]
<span>Evaluate the expression 5a + 5b. Let a = -6 and b = -5.

n = 5a + 5b
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</span>
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3 years ago
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48% decrease :)

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