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3 years ago

Find the inverse function of y=9x

Mathematics

1 answer:

zloy xaker [14]3 years ago

4 0

Answer:

Replace

(

)

with

Interchange the variables.

Solve for

Tap for more steps...

Solve for

and replace with

−

(

)

Tap for more steps...

−

(

)

Step-by-step explanation:

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Justin buys 12 pencils for $0.56. He pays with a $10 bill. How much charge will he recieve?

Andreyy89

I don't imagine you could divide with this since the answer would lead to 0.04 but if so i'm an idiot.

The way i would do it is 12 x 0.56 which makes 6.72. (it just makes sense?)

So for the 0.04 he would get back 9.96

The 6.72 he would get back 3.28

Sorry i considered the possibilities.

6 0

3 years ago

Read 2 more answers

A rectangular prism is 6 inches long, 3 inches wide, and 2 inches high. What is its surface area?

Serga [27]

We can l<span>abel the length (l), width (w), and height (h) of the prism and use the </span>formula<span>, SA=2lw+2lh+2hw, because it has '6' faces and to find the </span>surface area put the values in the formula:

SA=2(6)(3)+2(6)(2)+2(2)(3)
SA=36+24+12
SA=72

6 0

4 years ago

There are 100 students at the end of year school bar-b-que. The ratio of boys to girls is 4:6. The ratio of vegetarian girls to

wariber [46]

Answer: There are 60 girls and 40 boys at the bar-b-que

============================================================

Explanation:

b = number of boys
g = number of girls

"The ratio of boys to girls is 4:6" so
b = 4*x
g = 6*x
where x is some positive whole number

Add up the counts of boys and girls. This count should equal 100
b+g = 100

Plug in b = 4x and g = 6x. Then solve for x
b+g = 100
4x+6x = 100
10x = 100
10x/10 = 100/10 ... divide both sides by 10
x = 10

If x = 10, then
b = 4*x = 4*10 = 40 ---> there are 40 boys
g = 6*x = 6*10 = 60 ---> there are 60 girls

we can see that the ratio
40 boys: 60 girls
reduces to
4 boys: 6 girls
In other words, for every 4 boys, there are 6 girls. The ratio 4:6 can be fully reduced to 2:3 which means for every 2 boys, there are 3 girls.

Side note: if the ratio of vegetarian girls to omnivorous girls is 1:1, then there are 30 of each
we can solve y+y = 60 to find that y = 30, or we can simply divide 60 in half to find this count. Saying "a ratio of 1:1" means that there are the same number of vegetarians as omnivorous girls.

4 0

3 years ago

Evaluate A2 for A = 2.3.

grandymaker [24]

So simply we are putting values in equation A2 A=2.3 So A2 means 2.3 × 2.3 The answer is 5.29

3 0

3 years ago

You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hou

Thepotemich [5.8K]

You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven.

a) At t = 0

temperature of turkey is 67 degree Fahrenheit

b) At t = 3.75

temperature of turkey is 165 degree Fahrenheit

c) t = 3

temperature of turkey is 4 degree Fahrenheit

d) at t = 3.75

temperature of turkey is 169 degree Fahrenheit

<h3>What is basic algebra ?</h3>

Algebra is a branch of mathematics that facilitates the description of problems or situations into mathematical statements. It involves variables like x, y, and z as well as mathematical operations like addition, subtraction, multiplication, and division to generate a valid mathematical statement. All branches of mathematics, such as coordinate geometry, calculus, and trigonometry, employ algebra. An elementary algebraic formula is 2x + 4 = 8. Algebraic expressions serve as the mathematical statement when operations on variables and constants, such as addition, subtraction, multiplication, division, etc., are done.

Given that : You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven.

a) At t = 0

temperature of turkey is 67 degree Fahrenheit

b) At t = 3.75

temperature of turkey is 165 degree Fahrenheit

c) t = 3

temperature of turkey is 4 degree Fahrenheit

d) at t = 3.75

temperature of turkey is 169 degree Fahrenheit

To learn more about basic algebra visit :

brainly.com/question/15167098

#SPJ9

8 0

2 years ago