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3 years ago

Tell wether the ordered pair (5,-3) is a solution of the system -3x+2y=-21;-x-y=-2

Mathematics

1 answer:

Viefleur [7K]3 years ago

8 0

Answer:

(5,-3) is a solution of -x-y=-2

Step-by-step explanation:

You just plug in the numbers in the equation

x=5 y=-3

-5(5)+2(-3)=-25-6 which doesn't equal -21

-5-(-3)=-5+3=-2

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Yanka [14]

Answer:

TQ = 83.5

Step-by-step explanation:

11/54 = 17/TQ

11TQ = 918

TQ = 918/11 = 83.45

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2 years ago

Calculate the volume of the cylinder: 10 yd 7 yd

Evgesh-ka [11]

Answer:

The answer is 384.85 yd to the power of 3

Step-by-step explanation:

πr2h

= π×3.52×10

= 122.5π

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2 years ago

Gordon is going to buy fruit

Mkey [24]

Answer:

4R+2S=24

Step-by-step explanation:

Let the raspberry be represented as R

Let the strawberry be represented as S

Since a carton of raspberry is$4=4R

Since a carton of strawberry is $2=2S

And the sum of the two is 24

4R+2S=24

Since a specific value is not given

So the final answer is

4R+2S=24

8 0

3 years ago

a scale on a map states that 3/4 inches equals 12 miles. the distance between two cities on the map is 4.5 inches. how far apart

lubasha [3.4K]

54 miles is how far the city should are

8 0

2 years ago

There are four blue marbles, an unknown number of red (r) marbles, and six yellow marbles in a bag. Which expression represents

MAXImum [283]

Answer:

There are a total of 4 + r + 6 marbles in the bag

The probability of a blue is $\frac{4}{10+r}$

The probability of a red is $\frac{r}{10+r}$

The probability of choosing a blue, replacing it and then a red is

$\frac{4}{10+r}$ × $\frac{r}{10+r}$ = [tex]\frac{4r}{100+20r+ r^{2} /[tex]

Step-by-step explanation:

6 0

2 years ago