All categories

2 years ago

Need some help! please be specific on how to do it

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

4 0

Answer:

Your first step in solving the system would be to substitute the value of a variable into one of the equations

Step-by-step explanation:

We know that x = 2y + 2 and y = -1/3x + 4, so we could insert one of these values as the variable in one of the equations

If we were to insert -1/3x + 4 for y, our new equation would be:

x = 2(-1/3x + 4) + 2 (as you can see, the value of y was inserted into the equation)

You might be interested in

x+4y=17 and -x-6y=-23 what's the x and y I really badly need this I need this so I can play at my basketball game tommorw and I

loris [4]

Answer:

x = 5
y = 3

Solution:

=> x + 4y = 17

-x - 6y = -23

=> -2y = -6
=> y = 3

Now, let's substitute the value of y into the first equation.

x + 4y = 17
=> x + 4(3) = 17
=> x + 12 = 17
=> x = 5

Let's check our answer to make sure it is correct.

Check:

-x - 6y = -23
=> -(5) - 6(3) = -23
=> -5 - 18 = -23
=> -23 = -23

Hence, this is proven correct.

Hoped this helped.

$BrainiacUser1357$

7 0

2 years ago

Joanne cannot decide which of two washing machines to buy. The selling price of each is $480 The first is marked down by %50 T

serious [3.7K]

Answer:

i can not be cas thae are the same

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

What is the solution to the system of equations? y = 2x – 3.5 x – 2y = –14

iogann1982 [59]

Answer:

Step-by-step explanation:

Substitution then simplify

8 0

3 years ago

| x | < 2 solve the inequality and then graph the solution

anzhelika [568]

Answer:

Any number smaller than 2

Step-by-step explanation:

You would graph this by wrighting a solid, filled in circle with an arrow point toward the negative numbers, because those numbers are smaller than 2

3 0

2 years ago

One afternoon, 27 people withdraw $100 from an ATM. What was the overall change in the amount of money in the machine?

Usimov [2.4K]

Answer:

The change is a decrease of $2700.

Step-by-step explanation:

Given

Total Number of people = 27

Amount each person withdrew = $100

The total withdrawn amount by 27 people = 100 × 27

= $2700

Let M be the amount of money in the ATM at the beginning.

As $2700 was drawn from the ATM, therefore, the change the amount of money in the machine will be:

M - 2700

It means the change is a decrease of $2700.

3 0

2 years ago