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2 years ago

Solving systems of equations using substitution

Mathematics

1 answer:

Semenov [28]2 years ago

3 0

Put x=-2 in x-y=-2
-2-y=-2
-y=0
y=0
x=-2
that's your answer.

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Elodia [21]

The answer would be 202 inches

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3 years ago

Find the value of x?

Deffense [45]

Answer:

145°

Step-by-step explanation:

See the attachment. Angles A, B, and C all belong to the triangle.

We know that A + B + C = 180° since the angles of a triangle always add to 180°. We also know that when two lines meet that their sum is also equal to 180°. So we can write for each interior angle the following:

<u> Result</u>

<A = (180 - 88) 72

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<C = (180 - 127) 53

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6 0

2 years ago

You start hiking at an elevation that is 80 meters below base camp.

Arte-miy333 [17]

Answer:

You are now 38 m below base camp.

Step-by-step explanation:

Consider the provided information.

You start hiking at an elevation that is 80 meters below base camp.

Now your initial location is 80 m below base camp, that can be represents as: -80

Now you increase your elevation by 42.

So you go up by 42.

In other words, you get the equation -80+42 = -38.

Since a negative value is below the base camp, this means that you are now 38 m below base camp.

6 0

2 years ago

While waiting for a bus, Todd decided to play with consecutive numbers (whole numbers that increase in order without skipping, s

Lesechka [4]

Answer:

A: 8+9+10=27

9+10+11=30

10+11+12=13

B: 19+20+21

C: There isn't any.

Step-by-step explanation:

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4 0

3 years ago

Janie receives R150 pocket money per month. In the new year his mother increase his pocket money in the ratio 6:5. Calculate Jan

dimaraw [331]

Answer:

Janies' monthly pocket money is $180.

Step-by-step explanation:

Janies' adjusted monthly pocket money:

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Ratio of new pocket money = 6:5

Let his new pocket money be represented by x,

x:$150 = 6:5

$150 x 6 = x (5)

$900 = 5x

x = $\frac{900}{5}$

x = $180

Therefore, Janies' monthly pocket money is $180.

6 0

2 years ago