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4 years ago

PLEASE HELP ASAP worth alot

Mathematics

1 answer:

vredina [299]4 years ago

4 0

Answer:

I believe it is C

Step-by-step explanation:

Hope this helps

and if it at all possible and you mark me brainlyest please

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When four times a number is decreased by 7, the result is 1. What is the number?

Shalnov [3]

Answer: The number is 1.

Step-by-step explanation:

create the formula from the problem

4x -7 = 1

move the seven to the other side by adding seven to both sides

4x (+7) -7 = 1 (+7)

4x = 8

then to get the x by itself, divide both sides by 4

4x/4 = 8/4

x = 2

You can check your work by plugging the x back into the original problem

4 (2) -7 = 1

8 -7 = 1

1 = 1 (this means it is correct)

6 0

3 years ago

A class has 21 girls and 12 boys. what is the probability that a boy's name is drawn at random

belka [17]

There are a total of 33 students in the class (21+12=33). There are 12 boys in the class so the chance of drawing a boys name would be 12/33 which reduces to 4/11. This means you will draw a boys name 4 times for every 11 draws. To find the percent probability, just divide...

4/11 =.3636

multiply by 100 to convert to a percentage ( move decimal to the right 2 places).

.3636 = 36.36%

There is a 36.36% chance that a boys name is drawn.

3 0

3 years ago

Kurt is building a rectangular deck. if the dimensions of the deck are 10 ft by 23 ft, what the length of the diagonal of the de

OverLord2011 [107]

The length of the diagonal of the deck can solved using the pythagorean theorem because the diagonal the sides of a rectangle will form a right triangle. pythagorean theorem states that
C^2 = B^2 + A^2
where C is the hypotenuse or the diagonal of the rectangles
B and A are the sides of the rectangle

C^2 = 10^2 + 23^3
C^2 = 629
C = 25.08 ft

5 0

3 years ago

What the range of the relation in the table below ?

german

The first option

letter a 0,2, 4

3 0

3 years ago

a company that manufactures bicycles has a fixed cost of $80,000. it costs $100 to produce each bicycle. the total cost for the

frez [133]

C(x) = 80000 + 100x is the total cost as function of number of cycles produced

C(90) = 89000 and it costs $ 89000 to produce 90 bicycles

Solution:

Given that, company that manufactures bicycles has a fixed cost of $80,000

Fixed cost = $ 80,000

Let x be the number of cycles produced

Let C(x) be the total cost as function of number of cycles produced

It costs $100 to produce each bicycle

Variable cost = 100 x number of cycles produced

variable cost = 100x

The total cost for the company is the sum of its fixed cost and variable costs

total cost = fixed cost + variable cost

C(x) = 80000 + 100x

Thus total cost as function of "x" is found

Find and interpret C(90)

Substitute x = 90 in C(x)

C(90) = 80000 + 100(90)

C(90) = 80000 + 9000

C(90) = 89000

Thus it costs $ 89000 to produce 90 bicycles

3 0

3 years ago