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AleksAgata [21]
3 years ago
12

HELPPP I MAKE BRAINLIESTT

Mathematics
2 answers:
mina [271]3 years ago
8 0

Answer:

C. c(t) = 5 + 15t

Step-by-step explanation:

She charges $15 per hour, so each hour (represented by "t") she earns 15 dollars. She also charges a $5 fee per germent. So she would get $5 plus 15 times however many hours she worked. So your answer would be c(t) = 5 + 15t.

MaRussiya [10]3 years ago
7 0

Answer:

C. c(t) = 5 + 15t

Step-by-step explanation:

Well because the initial fee is $5, the answer must have the value of 5 without a variable next to it because this is the y-intercept.

(Only the slope will have the t next to it.)

Because $15 is charged <u>EACH HOUR</u> this would be the slope because there is a constant increase

Therefore c(t) = 5 + 15t

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Gina can buy a 5-pound bag of apples that cost $4.50, or she can buy them by the pound for $0.85 or pound. Which of these best e
sweet-ann [11.9K]
It's "D", because when you divide 4.5/5 you get .90 per pound so buying per pound it less.
5 0
4 years ago
An open-top box with a square base is to have a volume of 4 cubic feet. Find the dimensions of the box (in ft) that can be made
Lemur [1.5K]

Answer:

The dimension of box=2ft\times 2ft\times 1ft

Step-by-step explanation:

We are given that

Volume of box=4 cubic feet

Let x be the side of square base and h be the height of box

Volume of box=lbh=x^2h

4=x^2h

h=\frac{4}{x^2}

Now, surface area of box,A=x^2+4xh

A=x^2+4x(\frac{4}{x^2})=x^2+\frac{16}{x}

\frac{dA}{dx}=2x-\frac{16}{x^2}

\frac{dA}{dx}=0

2x-\frac{16}{x^2}=0

2x=\frac{16}{x^2}

x^3=8

x=2

\frac{d^2A}{dx^2}=2+\frac{32}{x^3}

Substitute x=2

\frac{d^2A}{dx^2}=2+\frac{32}{2^3}=2+4=6>0

Hence, the area of box is minimum at x=2

Therefore, side of square base,x=2 ft

Height of box,h=\frac{4}{2^2}=1 ft

Hence, the dimension of box=2ft\times 2ft\times 1ft

5 0
3 years ago
Item 20 An online T-shirt store is having a sale. The original price of each T-shirt is p dollars. The store sells 20 T-shirts a
Bumek [7]

discount per tshirt=(originalprice-discountedprice)/numberofshirtssold

20 tshirts

originaprice=20*p=20p

discountedprice=20p-60

numberofshirtssold=20


discountpershirt=(20p-(20p-60))/20

discountpershirt=(20p-20p+60)/20

discountpershirt=(60)/20

discountpershirt=3

the discount per tshirt is $3.00 per shirt

6 0
3 years ago
Read 2 more answers
PART A: how many miles per gallon does the car get
Nastasia [14]
Part a: 30 gallons (i think)


part b: 220
3 0
4 years ago
Five less than nine times a number is the same as nineteen more than the number
Xelga [282]

Answer:


Step-by-step explanation:

The first thing you need to do is develop the equation. Less in this case means subtract.

On the left side you have

9 times a number which is 9*x

5 less than 9 times a number means 9x - 5

Now you shift to the right

x = 3

x + 19  What you get is

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8x - 5 = 19             Add 5 to both sides.

8x - 5 + 5 = 19 + 5 Combine terms

8x = 24                  Divide by 8

x = 24/8

x = 3

4 0
3 years ago
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