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3 years ago

Which ordered pairs in the form (x,y) are solutions to the equation 7 x - 5y = 28?

Mathematics

1 answer:

Tcecarenko [31]3 years ago

8 0

the answer would be C because 7(-1) -5(-7) would be -7+35 which equals 28

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Finding numbers divisible by 2 and 5 between two specific numbers

AfilCa [17]

Answer:

Step-by-step explanation:

between 9 and 11

10 is divisible by 2 and 5

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3 years ago

In parallelogram RSWY, find m

LuckyWell [14K]

Answer:

Part A) $m\angle R=110^o$

Part B) $m\angle S=70^o$

Step-by-step explanation:

we know that

In a parallelogram, opposite angles are congruent and consecutive angles are supplementary

step 1

Find the value of x

we know that

$m\angle R=m\angle W$ ----> by definition of parallelogram (opposite angles are congruent)

substitute the given values

$(5x-90)^o=(2x+30)^o$

solve for x

$5x-2x=30+90\\3x=120\\x=40^o$

step 2

Find the measure of angle R

$m\angle R=(5x-90)^o$

substitute the value of x

$m\angle R=(5(40)-90)=110^o$

step 3

Find the measure of angle S

we know that

$m\angle R+m\angle S=180^o$ ---> by definition of parallelogram (consecutive angles are supplementary)

we have

$m\angle R=110^o$

substitute

$110^o+m\angle S=180^o$

$m\angle S=180^o-110^o$

$m\angle S=70^o$

8 0

3 years ago

1.) Which system of equations below give the solution (-1,-2)?

xxTIMURxx [149]

Answer:

y = -x - 3

Step-by-step explanation:

Plug in -1 for <em>x</em><em> </em>and your result will come out to 1 because of that double negative [-(-1) = 1]. Next, deduct 3 from 1 to get -2.

I am joyous to assist you anytime.

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3 years ago

What is 141.15 as a rational number

V125BC [204]

The answer is 14115/100.
The definition of a rational number is a number that can be divided by a integer.
So pi for example is an irrational number because it continuously goes on.
You can't divide pi accurate in a fraction.

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3 years ago

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slavikrds [6]

Answer:

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Step-by-step explanation:

myueudifigkgkgogkvkcv

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3 years ago