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valkas [14]
3 years ago
15

For her tutoring services, Thuy charged Demi $10 per hour and $8 for books and supplies. Demi paid a total of $48.00. Which equa

tion represents this situation?
Mathematics
1 answer:
Fudgin [204]3 years ago
7 0
To find the final amount, you would have to multiply her rate per hour (10) by how many hours she tutored (h). Then, you need to add her flat rate of 8.

10h + 8 = 48
, where h is how many hours she tutored.
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Solve for x. ​ −2(x+14)+1=5 ​ ​ Enter your answer in the box.
sleet_krkn [62]

-2(x+14)+1=15

distribute

-2x - 14 + 1 = 15

add 14 to each side

-2x + 1 = 29

subtract one from each side

-2x = 28

divided by -2

x = -14

8 0
3 years ago
Read 2 more answers
According to the tree diagram below, what is the probability that someone buys a book that is hardcover and nonfiction
Rasek [7]

Whenever you have a decision tree like this, the probability of reaching a specific leaf is the multiplication of the probabilities of each step you have to reach the leaf.

So, in order to reach the "hardcover and nonfiction" leaf, we have to take the "buys hardcover" branch (probability 0.35), and then the "buys nonfiction" branch (probability 0.55).

Given what we said above, the probability for "hardcover and nonfiction" is

0.35\cdot 0.55=0.1925

5 0
3 years ago
Sophia's credit has an APR of 20.87 % and it just changed its compounding. From monthly to daily what will happen to the effecti
Rashid [163]

Answer:

It will increase by 0.2%.

Step-by-step explanation:

In this problem we need to solve for the monthly interest first.

We use the formula:

r = (1+\dfrac{i}{n})^{n}-1

Now that we have the formula we now define our variables.

i = 20.87% or 0.2087

n = 12

r=(1+\dfrac{0.2087}{12})^{12} - 1

r=(1+\dfrac{0.2087}{12})^{12}-1

r=(1+\dfrac{0.0174})^{12}-1

r=(1.0174})^{12}-1

r= 1.2299-1

r= 0.2299 or 23%

Now we have to find the daily interest rate.

r=(1+\dfrac{0.2087}{365})^{365}-1

r=(1+\dfrac{0.2087}{365})^{365}-1

r=(1+0.00057178082)^{365}-1

r=(1.00057178082)^{365}-1

r= 1.2320-1

r= 0.2320 or 23.20%

23.20% - 23% = 0.20% increase.

3 0
3 years ago
Find the solutions to the equation below.Check all that apply.
Blababa [14]

we are given

x^2-4=0

To find solution , we can factor it and then we can solve for x

step-1: Factoring

x^2-4=0

(x-2)(x+2)=0

step-2: Solve for x

(x-2)=0

x=2

(x+2)=0

x=-2

so, option-C and option-F...........Answer

8 0
3 years ago
Find the height of a cylinder with a volume of 30 ins and a radius of 1 in.
Molodets [167]

Answer:

The height of this cylinder = 9.55 ins

Step-by-step explanation:

Volume cylinder = pi * r² * h = 30 ins

r=1

pi * r² * h = 30

pi * 1² * h = 30 ins

h = 30/pi

h = 9.55 ins

8 0
3 years ago
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