MATHEMATICS HIGH SCHOOL

A restaurant earns $1073 on Friday and $1108 on Saturday. Write and solve an equation to find the amount xx (in dollars) the restaurant needs to earn on Sunday to average $1000 per day over the three-day period.

Answers

Answer 1

Answer:

Money earned by restaurant on Friday=$1073

Money earned by restaurant on Saturday=$1108

Let Money earned by restaurant on Sunday=$x

Average=$1000

$\text { average}=\frac { sum of all the observation}{total number of observation}$

Number of observation=3

⇒ 3× 1000=1073+1108+x

⇒3000= 2 181+x

⇒3000-2181=x

⇒x=819

The restaurant needs to earn on Sunday to average $1000 per day over the three-day period=$819

Answer 2

Answer: 1073+1108+x/3=1000

answer is $819

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4. Solve the quadratic by factoring, isolating x^2, or using the quadratic formula:a. 2x^2 – 7x = 4

b. 81x^4 – 1

c. 2x^2 – 32 = 0

d. X^2 – 7x + 12

Answers

Hello,

A:
2x²-7x-4=0
==>2x²-8x+x-4=0
==>2x(x-4)+1(x-4)=0
==>(x-4)(2x+1)=0
==>(x=4) or (x=-1/2)

B: where is the sign "=" !!!!!!!!!!!!!!!!!!

81x^-1=(9x²+1)(3x+1)(3x-1) I can not go any further.

C)
2x²-32=0
==>x²-16=0
==>(x+4)(x-4)0
==>x=-4 or x=4

D:
where is the sign "="!!!!!!!!!!!!!!!!!!!!!!!!

x^2-7x+12=(x-4)(x-3) but I can not go ant further....

3 1/3 - 2 2/5 what is the answer?

Answers

One way to solve this is by changing the mixed numbers to improper functions.
3 1/3 = 10/3
2 2/5 = 12/5

The next step I would take is to find a common denominator.
10/3 = 50/15
12/5 = 36/15

Now we can solve the original equation:
50/15 - 36/15 = 14/15

Since 14/15 is already simplified this is your final answer.

Help please it emergency if you help thank you a lot

Answers

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Step-by-step explanation:

That is the only rate that has the correct format.

Answer:

A. 9 miles/2 hours

Step-by-step explanation:

distance over time

I NEED HELP PLEASE ASAP!

Answers

Answer:

make a line with arrows at the end. On the line, make a hash mark and label it -13. on the hash mark, make a filled-in circle and color the number line to the left of the circle, including the arrow.

Step-by-step explanation:

This is how you show it. :)

A cylinder is 8 inches wide and 10 inches tall. a cone is 10 inches wide and 12 inches tall. which container has more space