Use substitution to solve the system of equations below. Input your answer for x.x + 3y = 16
2x - y = 4

Answers

Answer 1
Answer: { x + 3 y = 16
  2x - y = 4

Isolate x for x + 3y = 16 :

x = 16 - 3y

Subsititute x = 16 - 3y 

[ 2 ( 16 - 3y ) - y = 4 ]

isolate y for :

2(16 - 3y ) - y = 4

y = 4

For x = 16 - 3y

subsititute y = 4

x = 16 - 3 * 4

x = 16 - 12

x = 4

Solution:

x = 4 and y = 4

hope this helps!.



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What is the common difference between the elements of the arithmetic sequence below?–18, –22.5, –27, –31.5, –36

Answers

Answer:

sorry this is late but the answer is -4.5.

Step-by-step explanation:

I got this right on edge! Please give this a like and mark brainliest!

The sequence:

-18 , -22.5 , -27 , -31.5 , -36

Common difference:

(-18 - -22.5) = (-22.5 - -27) = (-27 - -31.5) = (-31.5 - -36) = 4.5 ( When two minuses come together, they make a plus. So difference is certainly the positive next number - positive previous number to give 4.5)

Common difference = 4.5

Type of the sequence: Arithmetic sequence.

What is the ratio in a fraction form of 22:7

Answers

22/7. It's basically the same thing

What times what equals 160

Answers

The question is asking to state the number that when multiply, the product would be 160, base on my research and calculation, I would say that the answer would be 16*10, 2*80, 40*4, 20*8, 160*1 and 32*5. I hope you are satisfied with my answer and feel free to ask for more 

The equivalent value of the equation is A = 160 = 20 x 8

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the first number be p

Let the second number be q

Now , A = pq

when the value of p = 20

And , when the value of q = 8

On simplifying the equation , we get

160 = 20 x 8

So , the left hand side of the equation is equated to the right hand side by the value of ( 20 x 8 )

A = 20 x 8

A = 160

Therefore , the value of A = 160 = 20 x 8

Hence , the expression is A = 160 = 20 x 8

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what if erika and Bradley want to hike 14 miles each day? how many days will they hike exactly 14 days?

Answers

you just need to multiply 14 miles by 14 days so the answer is 196

Needs help soon almost due

Answers

Answer:

3: 4 2/5

4: 3

Step-by-step explanation:

#3 Work:

-(3 + 1/5) + 7 + 3/5

-3 - 1/5 + 7 + 3/5

(-3 + 7) + (-1/5 + 3/5)

4 + 2/5

Answers: 4 2/5

#4 Work:

-5 + 2 - 8 + 14

Answer: 3

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The Fairbanks,Alaska, a typical January temperature is -13F and a typical April temperature is 30F. What is the difference between these temperatures?

Answers

The difference between +30 and -13 is 43 degrees.
t- temperature in January
T-temperature in April

Δ- difference beteween temperature

Δ=T-t
Δ=30F-(-13F)=30F+13F=43F