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Ahat [919]
3 years ago
6

PLZ HELP A WEEB OUT!!! WILL GIVE BRAINLIST

Mathematics
1 answer:
insens350 [35]3 years ago
3 0
She used the diameter instead of the radius :) instead of cubing 8 she should’ve cubed 4
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At one gym, there is a $12 start-up fee, and after that each month at the gym costs $20. At another gym, it costs $4 to startup,
mart [117]

Answer:

In 4 months the cost of both gyms will be the same.

Step-by-step explanation:

At first we need to model the function to calculate the cost of the 2 gyms.

Slope-intercept equation of linear function

f(x)=mx+b

where

m\rightarrow slope of line

b\rightarrow y-intercept

Let linear function to calculate total cost of gym be:

c(n)=mn+b

where

c\rightarrow total cost of gym

m\rightarrow cost per month (slope)

n\rightarrow number of months

b\rightarrow start-up fee (y-intercept)

For Gym 1

m=20 , b=12

c(n)=20n+12

For Gym 2

m=22 , b=4

c(n)=22n+4

In order to find the number of months the cost of both gyms will be the same, we need to equate both functions and solve for number of months (n)

20n+12=22n+4

\\\textrm{Subtracting 22n from both sides}\\20n-22n+12=22n-22n+4\\-2n+12=4\\\textrm{Subtracting 12 from both sides}\\-2n+12-12=4-12\\-2n=-8\\\textrm{Dividing both sides by -2}\\\frac{-2}{-2}n=\frac{-8}{-2}\\n=4\textrm{ months}

So,

In 4 months the cost of both gyms will be the same.

5 0
3 years ago
What is the value of -3 + 4.5 - (- 1.2)
kari74 [83]
The answer to your question is 13.5
7 0
3 years ago
Find the volume of the composite solid.
OLEGan [10]

Here's the solution,

the volume of the given figure is :

=》

volume \:  \: of \:  \: (pyramid \:  + rectangular \:  \: prism)

volume of pyramid :

=》

\dfrac{l \times b \times h}{3}

=》

\dfrac{4 \times 5 \times 6}{3}

=》

\dfrac{120}{3}

=》

40

volume of pyramid = 40 cm³

now, volume of rectangular prism :

=》

l \times b \times h

=》

4 \times 5 \times 2

=》

40

volume of rectangular prism = 40 cm³

volume of composite figure = 40 + 40

=》80 cm³

4 0
2 years ago
Pls dont give just the answer, (you dont need to explain how to do it)
Alik [6]

Answer: 72

Step-by-step explanation: volume of a pyramid = v= lwh/3

v= 6*6*6/3

v = 216/3

v = 72

5 0
2 years ago
Read 2 more answers
Brianna is choosing between two babysitting companies.
zubka84 [21]

Answer:

5 more hours i think i might be wrong

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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