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3 years ago

How do you solve -6x+2y=16 for y

1 answer:

6 0

In the given question we are faced with an equation that has two unknown variables. So finding the value of the two variables is not possible as finding the value of two variables needs two equations. Only thing possible is finding an equation for the variable y.
-6x + 2y = 16
2y = 16 + 6x
y = (6x + 16)/2
= 3x + 8
So the value of y that can be found from the given equation is y = 3x + 8. I hope this is enough to make you understand the procedure by which these type of problems can be easily solved.

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4. For f(x) = 1/x-5

ioda

Answer:

g(x) = x^2 +2
f(g(x)) = 1/(x^2 -3)

Step-by-step explanation:

A. g(x) is given:

g(x) = x^2 +2

B. f(g(x)) = f(x^2 +2) = 1/((x^2 +2) -5) . . . . substitute for g(x) and simplify

f(g(x)) = 1/(x^2 -3)

3 0

3 years ago

What is 15% of 80kg i am<br> Really not sure

Dafna11 [192]

Answer:

12 kg

Step-by-step explanation:

15×80/100

15×8/10

120/10

12 kg

7 0

3 years ago

Read 2 more answers

Peter is writing a number in scientific notation.The number is grater that ten million and less that one hundred million.Which e

OLga [1]

Answer:

$M = a \times 10^7$ where 1 < a ≤ 9

The EXPONENT USED BY PETER is 7 in all the possible cases.

Step-by-step explanation:

Let us assume the needed number is M.

Also, given:

The needed number is GREATER than 10 Million.

⇒ M > 10 Million

⇒ M > 10,000,000

⇒ M > $1 \times 10^7$ ...... (1)

The needed number is SMALLER than 100 Million.

⇒ M < 100 Million

⇒ M < 100,000,000

⇒ M < $1 \times 10^8$ ...... (2)

Comparing (1) and (2) we can see that M can have more than 7 zeroes after 1 but LESS than 8 zeroes after 1.

So, the possible values of M can be:

$M = a \times 10^7$ where 1 < a ≤ 9

So, the EXPONENT USED BY PETER is 7 in all the possible cases.

5 0

4 years ago

Jay played 350 solitaire games he won 154 of those games. What percent of the games did Jay win?

Soloha48 [4]

Answer:

44.044

Step-by-step explanation:

To find the answer we first have to find the value of each percent, to do this we divide 100 by 350, that gets us approximately 0.286. We know that he won 154 of them we then multiply 154 by 0.286 to get the percentage of games he won and we get 44.044.

7 0

3 years ago

Read 2 more answers

Choose 2 hellllpppppp plzzzxxxxzz

diamong [38]

Answer:

Choices C and D

Step-by-step explanation:

The most simplest way is just to solve each one and see which two have the same answer as the first expression.

But you could also see that both of the $\frac{4}{7}$ are going to cancel each other out so you are left with $-\frac{8}{9} +\frac{9}{8}$ which is also choice C.

For choice D I distributed the negative one to the insides of the parenthesis that left me with $-\frac{4}{7}-\frac{8}{9}+\frac{4}{7} +\frac{9}{8}$ which is the same expression as the first one.

5 0

3 years ago