please help me smart people!!if u are smart u will answer my problem correctly!!! let's test your mind!!!
please help me smart people!!if u are smart u will - 1

Answers

Answer 1
Answer: The equation is 40 + x = y
Answer 2
Answer: 40x=y, you need to solve for why. X is the amount of time she studied the second time so find x and then multiply and you can find X.

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What is the inverse of the function f(x) = 4x + 8?o h(x) = -x-2
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Answers

eplace f(x) with y

swtich x and y

solve for y

replace y with f⁻¹(x)

f(x)=4x+8

y=4x+8

x=4y+8

x-8=4y

1/4x-2=y

y=1/4x-2

f⁻¹(x)=1/4x-2

none of the above

What is 1.04 in a fraction in simplest form?

Answers

The answer should be 1 2/5 because 1 is the whole number. Then do 4 over ten and simplify to 2 over 5

A cat spends about 7 out of 10 hours sleeping about what percent of a cat's day. Is it spending sleeping?

Answers

The cat spends 70% if it’s day sleeping.

Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}

Answers

we are given

5r^2-12=68

Since, we have to solve for r

so, firstly we will isolate r terms

so, we will move 12 on right side

we can add both sides by 12

5r^2-12+12=68+12

5r^2=80

now, we can divide both sides by 5

(5r^2)/(5) =(80)/(5)

r^2=16

now, we can take sqrt both sides

and we get

r=4 , r=-4

so,

{±4}..........Answer

There are a total of 18 chairs.if the ratio of the red chairs to brown chairs is 2 to 4 how many of them are red

Answers

9 chairs because 2 to 4 is equal to 1/2 and half of 18 chairs is 9
2 to 4 is equal to1/2 so half of 18 is 9

The elevator at the local mall has a weight limit of 1,800 pounds and requires that the maximum person allowance be no more than nine people. Let w represent the amount of weight. Write an inequality to describe the maximum weight allowance in the elevator at one time.

Answers

The elevator at the local mall has a weight limit of 1,800 pounds is

9w ≤ 1800.

What is Inequality?

Inequalities are mathematical formulas in which neither side is equal. Unlike equations, we compare two values in inequality. In between, the equal sign is substituted by a less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

The elevator at the local mall has a weight limit of 1,800 pounds.

Not more than 9 people allowed in the Elevator.

let the weight of one person be w.

Then, the inequality is

9w ≤ 1800

Learn more about Inequality here:

brainly.com/question/30231190

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The inequality is going to be w<_1800 (that's less than or equal too)