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2 years ago

Knhrh theme jejrjrh eiie

Mathematics

1 answer:

Katarina [22]2 years ago

5 0

Answer:

what

Step-by-step explanation:

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An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 67. (The maxi

Ne4ueva [31]

Answer:

(oo) ========8

Step-by-step explanation:

6 0

3 years ago

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

This graph represents the relationship between the x and y.

s344n2d4d5 [400]

Answer:

Therefore, x is 1 and 2.

Step-by-step explanation:

As you plot both equations on the same graph, you will get something like this, shown in the graph.

Then, you have to find the x solutions where they intersect.

So, both equations intersect at x = 1 and 2.

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2 years ago

Find the slope of each line.<br> 6)

gregori [183]

Answer:

(4,7)

Step-by-step explanation:

6 0

2 years ago

Find the scale factor for the dilation.

BlackZzzverrR [31]

B is the correct answer I think

3 0

3 years ago