Y=5x-8. what is the input whne the output is 12?

Answers

Answer 1

Answer: the input is 4 because 5x4=20 and 20-8=12
how do you solve for x?
1) write the equation
y=5x-8
2) substitute 12 for y
12=5x-8
3) Add 8 to each side
20=5x
4) divide each side by 5
x=4

Answer 2

Answer:

Answer:

is 5 my bro

Step-by-step explanation:

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Which value of x will make the equation2x-30=6 true?

Answers

18 should be the value of x to make the equation true.

2x - 30 = 6

2x = 6 + 30
2x = 36
2x/2 = 36/2
x = 18

to check:
2x - 30 = 6
2(18) - 30 = 6
36 - 30 = 6
6 = 6

Jonathan's parents told him that for every 5 hours of homework or reading he completes, he will be able to play 3 hours of video games. His friend Lucas's parents told their son that he can play 30 minutes for every hour of homework or reading time he completes. If both boys spend the same amount of time on homework and reading this week, which boy gets more time playing video games? How do you know?

Answers

Jonathan spends more time playing video games because 3/5 of the time he is playing video games, while Lucas is only playing thirty minutes out of sixty, which simplifies into 1/2.Jonathan plays 60% of the time and Lucas plays 50%.(I overdid it a little sorry)

The easiest way to explain this is by using an example. If both boys read and do homework for 10 hours:

Jonathan
5:3 = 10: 6 Jonathan will play video games for 6 hours.

Luca
2:1 = 10:5 Luca will play video games for 5 hours.

If both boys spend the same amount of time on homework and reading this week, Jonathan gets more time playing video games.

A cup of broth can have 870 milligrams of salt, which is 30% of the recommended daily allowance. What is the recommended daily amount?

Answers

If 870mg is 30% of recommended daily amount, then we can set up the equation:
870 = 0.30 * x (where x is the recommended amount)
870 / 0.3 = x
x = 2900mg

Therefore the recommended daily amount is 2900mg of salt

Answer:

2900 milligrams

Step-by-step explanation:

I had to do it and I got it right.

Suppose that g (x) varies inversely with x and g (x)=0.2 when x = 0.1.What is g (x) when x = 1.6?

0.0125
0.032
0.02
0.06

Answers

Answer : 0.0125

Suppose that g (x) varies inversely with x and g (x)=0.2 when x = 0.1.

If x varies inversely with y then y=k/x

Where k is constant of proportionality

g (x) varies inversely with x , so $g(x) = (k)/(x)$

g (x)=0.2 when x = 0.1

Plug in the values and solve for k

$g(x) = (k)/(x)$

$0.2 = (k)/(0.1)$

Multiply 0.1 on both sides

0.02 = k

so $g(x) = (0.02)/(x)$

Now we need to find g(x) when x= 1.6

Plug in 1.6 for x and find out g(x) in the above equation

$g(x) = (0.02)/(1.6)$

g(x)= 0.0125

Answer:

A. 0.0125

Step-by-step explanation:

0.2*0.1= 0.02

.02/1.6 = 0.0125

Took the test and got it correct

Someone please come fast

Answers

the reciprocal of a number is the number you get when you divide -1 by the origonal number exg

basically the reciprocal of the number, when multiplied by the origonal number, the result is -1 so

fractions are really easy because what you do for fractions is you flip the fraction then multiply by -1

2/9
flip
9/2
multiply -1
-9/2
the answer is A

-9/2
flip
-2/9
mulltply -1
2/9
the naswer is C

9/2
flip
2/9
multiply -1
-2/9
the answer is B

-2/9
fliip
-9/2
mltily -1
9/2
the answer is D

the order is ACBD

ANSWER PLEASE I WILL MARK AS BRAINLIEST

Answers

Answer:

Step-by-step explanation:

That's an odd way to represent 3.

1 day means 3 tablets are taken

30 days means that 3*30 tablets = 90 tablets

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