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juin [17]
2 years ago
12

The video store sold 5 movies for 12 dollars if 20 movies are sold how many dollars will be earned​

Mathematics
1 answer:
spayn [35]2 years ago
6 0

Answer:

$48

Step-by-step explanation:

The video store sold 5 movies for 12 dollars .

Each movie cost 12/5 dollars

Which is 2.4dollars .

20 movies will be sold for

$2.4 x 20 = $48

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Which is a correct way to check that 4,358 divided by 7 is 622 remainder 4
mote1985 [20]

Answer:

Ok, check your work one way is:

622x7 Then add 4 and you can see if its correct

622x7 = 4354

Now add 4.

4358. So it's correct.

Equation (622x7)+4= 4358

6 0
2 years ago
A is the poin 3,5 and b is the point 0,k if the distance of ab is 5 units find the possible value of k
JulijaS [17]

Answer:

K is either 9 or 1

Step-by-step explanation:

Sqrt((0 - 3)² + (k - 5)²) = 5

Square both sides

(0 - 3)² + (k - 5)² = 5²

(0 - 3)² + (k - 5)² = 25

-3² + (k - 5)² = 25

9 + (k-5)(k-5) = 25

9 + k² - 5k - 5k + 25 - 25 = 0

k² - 10k +9 = 0

k² - 9k - k + 9 = 0

k(k - 9) - 1(k - 9) = 0

k - 1 = 0 ; k = 1

k - 9 = 9; k = 1

K = 9 or k = 1

K is either 9 or 1

4 0
2 years ago
The width of a rectangle is the length minus 3 units. The area of the rectangle is 10 units. What is the width, in units, of the
solmaris [256]

Answer:

2 units

Step-by-step explanation:

because the only whole number factor pair to 10 is 2x5 and luckily, it turned out that 5-3=2, so there are no decimals or fractions. Yay!

8 0
3 years ago
Are sin and cos reciprocals of each other
sleet_krkn [62]
Hello,

When you compose 2 reciprocals functions, you will find 1.

ex f(x)=√x and g(x)=x² , x>=0
so that g(f(x))=(√x)²=x

sin(cos(0))=sin(1)=0,84147... rad and not 1.
Reciprocal function of sin (x) is arcsin(x).
Reciprocal function of cos (x) is arccos(x).




8 0
3 years ago
At the beginning of the year, Zachary had $40 in savings and saved an additional $20 each week thereafter. Isaac started the yea
guajiro [1.7K]

Zachary function:

Z(t) = 40 + 20t

Isaac function:

I(t) = 85 + 11t

Graph each function to see the interval of time when one person has more money than the other.

8 0
2 years ago
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