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3 years ago

Jeremiah rounded a number 8.7 what could the original number have been

Mathematics

2 answers:

Fiesta28 [93]3 years ago

6 0

The original could have been 8.66

vlabodo [156]3 years ago

3 0

The number could have been 8.699999999 so yeah there

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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

4 years ago

Please help answer this the best you can for brainlst <3

kumpel [21]

Answer:

it looks like d go's in the first one and b go's in the second one

Step-by-step explanation:

7 0

3 years ago

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Select the choice that translates the following verbal phrase correctly to algebra:

Marat540 [252]

Y - 21
That's the answer.

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3 years ago

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1.2, 3, 7.5, 18.75, ...

Svetradugi [14.3K]

Answer:

1.2(2.5)x - 1

Step-by-step explanation:

3 0

3 years ago

1. The heights of two right prisms

RoseWind [281]

Answer:

They are not similar

Step-by-step explanation:

To determine whether the prism are similar we need to calculate their volumes

Volume of a prism = Base Area * Height

Volume of the first prism = 18ft *8 * 8ft

Volume of the first prism = 1152ft^2

Volume of the second prism = 30t * 15 * 15ft

Volume of the second prism = 6,750ft^2

Since the volumes are different, the prism are not similar.

3 0

3 years ago