3 years ago

Need help answering this question tysm! (Picture attached)

Mathematics

1 answer:

snow_lady [41]3 years ago

3 0

Answer:

1 and 2 answers are correct

Step-by-step explanation:

2x-y= -8

x-y = -4

ADD BOTH (y is cancelled)

3x= -12

x= -4

-8+y=-8

y=0

-4-y = -4

Multiply all by -1

4+y=4

y=0

You might be interested in

There is a number such that four times the number plus 3 is equal to 19. Find the number

frosja888 [35]

Answer:

Step-by-step explanation:

We have been given that it equals 19 when added to 3 and multiplied by 4 so follow these steps:

1. set the equation 4x+3=19

2. solve for x

4x+3-3=19-3

This is used to solve for x

3. 4x=16 is found

4. if 4x=16, we divide 16/4 and get 4!

That's your answer hope it helped!

3 0

3 years ago

Read 2 more answers

Element X decays radioactively with a half life of 15 minutes. If there are 340 grams of Element X, how long, to the nearest ten

NikAS [45]

Answer: 57 min

i used a calculator.

6 0

2 years ago

B(n)=-1(2)n-1 what's the 5th term in the sequence

Katena32 [7]

B5 = -1 x (2 ^ 5 - 1)
B5 = -1 x (2 ^ 4)
B5 = -1 x 16
B5 = -16

8 0

3 years ago

If EM=11, AM=16, and CF=27, what are the lengths of the following sides?

tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

4 0

3 years ago

What is the volume of the pyramid?

Assoli18 [71]

The answer should be C.

3 0

3 years ago

Read 2 more answers