All categories

3 years ago

Please help me with this I have absolutely no idea what the answer is please please help ASAP!!!!!

Mathematics

1 answer:

11111nata11111 [884]3 years ago

7 0

Answer:

A. Her expenses are $25 per week.

Step-by-step explanation:

Using a linear function f(x) = mx + b, m= slope and b = y-intercept or initial value. With the values of the given function: E(x) = 7x - 25, we can determine that the overall earnings (E(x)) is based on a profit of $7 per door ('x') and that if Jessica is subtracting $25 from her earnings, that this must be the cost per week for her expenses. So, she would need to knock on a minimum of 4 doors each week in order to make a profit.

You might be interested in

Two trains leave stations 306 miles apart at the same time traveling toward each other one is traveling at 90 mph the other at 8

Sergeu [11.5K]

Answer:

They will meet in 1.8 hours.

Step-by-step explanation:

Given that, distance between trains = 306 miles

Let they take time $'t'$ to meet each other.

Speed of first train = 90 mph

Speed of second train = 80 mph

Let distance traveled by first train = $D_1$ miles

Formula for distance:

$Distance = Speed \times Time$

Distance traveled by first train, $D_1 = 90t$

Let distance traveled by first train = $D_2$ miles

Formula for distance:

$Distance = Speed \times Time$

Distance traveled by first train, $D_2 = 80t$

Total distance traveled is 306 miles.

i.e.

$D_1+D_2=306\\\Rightarrow 90t +80t=306\\\Rightarrow 170t=306\\\Rightarrow t =\dfrac{306}{170}\\\Rightarrow \bold{t=1.8\ hr}$

They will meet in 1.8 hours.

3 0

3 years ago

I need some help please

Mama L [17]

Answer:

109

Step-by-step explanation:

Formula

<ZHG + <IHZ = <IHG

Givens

<ZHF = 11x - 1

<IHZ = 24

<IHG = 12x + 13

Solution

11x - 1 + 24 = 12x + 13 Combine terms on the left

11x + 23 = 12x + 13 Subtract 13 from both sides

11x + 10 = 12x Subtract 11x from both sides

10 = x

Answer

11x - 1 = 11*10 - 1 = 110 - 1 = 109

7 0

3 years ago

Look at this set of ordered pairs:

cestrela7 [59]

Answer:

Yes!

Step-by-step explanation:

There are no repeating y values or x values!!

3 0

3 years ago

At the arcade, nick spent 203 tokens on videogames in seven days. each day he spent five more tokens than the previous day. how

Dafna11 [192]

Suppose nick spent x number of tokens on day 1

So he spent x + 5 on day 2

He spent x + 10 on day 3

He spent x + 15 on day 4

He spent x + 20 on day 5

On day 6 he spent x + 25

And on day 7 he spent x + 30

So in all he spent

x + x + 5 + x + 10 + x + 15 + x + 20 + x + 25 + x + 30

= 7x + 105

But total token spent = 203

7x + 105 = 203

Subtracting 105 from both sides

7x = 203 - 105

7x = 98

Dividing by 7 on both sides

x = 14

So on third day he spent x + 10

= 14 + 10

= 24 tokens

Tokens spent on day 3 = 24

8 0

3 years ago

How to divide the mixed fraction

topjm [15]

13/5 divided by 11/6 = 13/5 X 6/11 Answer is 78/55

3 0

3 years ago