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3 years ago

10

The local grocery store sells a bag of dog food for $22. The store pays $13 for the dog food which equation can be used to find

the markup on the dog food?

1 answer:

iogann1982 [59]3 years ago

8 0

Answer:

2

Step-by-step explanation:

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Under her cell phone plan, Ellie pays a flat cost of $50 per month and $5 per

erastovalidia [21]

Answer:

She can use 4GB of data

You keep on adding five dollars on top of 50 until you reach 70.

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3 years ago

Tyler works in retail where she earns $10.50 per hour. She also earns $15 for every new credit account she gets customers to ope

Hitman42 [59]

A
coefficient = 10.50 or 15, both real numbers that qualify variables
variable = c and h
constant = 50

B
10.50h + 15c + 50
10.5 x 37 + 15 x 12 + 50
388.50 + 180 + 50 = 618.50

C
Coefficient would change from 10.50 to 11.25
<span>It is fixed until the next raise.

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4 0

3 years ago

Read 2 more answers

Solve sin 0 + 1 = cos20 on the interval 0 ≤ 0 < 2pi. Show work please!

yan [13]

Answer:

$\theta=\frac{\pi}{2},\frac{3\pi}{2}\frac{2\pi}{3}\frac{4\pi}{3}$

Step-by-step explanation:

You need 2 things in order to solve this equation: a trig identity sheet and a unit circle.

You will find when you look on your trig identity sheet that

$cos(2\theta)=1-2sin^2(\theta)$

so we will make that replacement, getting everything in terms of sin:

$sin(\theta)+1=1-2sin^2(\theta)$

Now we will get everything on one side of the equals sign, set it equal to 0, and solve it:

$2sin^2(\theta)+sin(\theta)=0$

We can factor out the sin(theta), since it's common in both terms:

$sin(\theta)(2sin(\theta)+1)=0$

Because of the Zero Product Property, either

$sin(\theta)=0$ or

$2sin(\theta)+1=0$

Look at the unit circle and find which values of theta have a sin ratio of 0 in the interval from 0 to 2pi. They are:

$\theta=\frac{\pi}{2},\frac{3\pi}{2}$

The next equation needs to first be solved for sin(theta):

$2sin(\theta)+1=0$ so

$2sin(\theta)=-1$ and

$sin(\theta)=-\frac{1}{2}$

Go back to your unit circle and find the values of theta where the sin is -1/2 in the interval. They are:

$\theta=\frac{2\pi}{3},\frac{4\pi}{3}$

7 0

3 years ago

Joe spends $8 for lunch and $6.50 for dry cleaning. He also buys 2 shirts that cost the same amount. Joe spends a total of $52.

faltersainse [42]

2shirts=52-8-6.50=37.50

so each shirt costs 18.75$

4 0

3 years ago

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Joaquin is constructing the perpendicular bisector of AB. What should be his

Licemer1 [7]

The correct answer is C

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3 years ago