Mathematics, 10.09.2019 22:30 Jasmineos

Agroup of 5 friends is out to dinner. each of the friends will order the dinner special, and they
have a coupon for $10 off the entire bill. which equation can be used to find the total cost of
all the dinners after the coupon is applied?

Answers: 2

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Answers

Answer from: marenh04938

step-by-step explanation:

Answer from: samlolomg123

step-by-step explanation:

the answer is 5d-10=c

this is because in this case, d is equal to the dinner special. since all 5 friends order a dinner special, to find the cost of the entire bill without the coupon, you multiply the price of the dinner special by the number of people ordering it, resulting in 5d or 5 multiplied by d.

since they have a 10 dollar coupon for the entire bill (meaning that the 5 friends are sharing a bill) you subtract the coupon from the bill (which is 5d).

we can assume that c means cost after the coupon.

by adding all this information together, we get 5d-10=c

hope this ! : )

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Answer from: Quest

$y> \frac{1}{3}x$ and y≤ -x +4 .

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be = $\frac{1-0}{3-0} = \frac{1}{3}$ .

y-intercept of dotted line is y=0 only.

plugging slope m= $\frac{1}{3}$ and b=0 in slope-intercept form y=mx+b, we get

$y=\frac{1}{3}x$ .

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

$y> \frac{1}{3}x$ .

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be = $\frac{4-1}{0-3} = \frac{3}{-3}=-1$ .

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be

y≤ -x +4 .
Write a system of inequalities to represent the shaded portion of the graph.

Answer from: Quest

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

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Agroup of 5 friends is out to dinner. each of the friends will order the dinner special, and they

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