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swat32
3 years ago
8

a video store charges a one time membership fee of $12.00 plus $1.50 per video rental. How many videos can sarah rent if she spe

nds $21?
Mathematics
2 answers:
k0ka [10]3 years ago
6 0
Hello there!

To start with subtract the membership fee from the total of $21:
$21 - $12 = $9.
Divide what is left by the cost per video rental:
$9/ $1.50 = $6.

In short, she can rent 6 videos.

Hope This Helps You!
Good Luck :)
Mama L [17]3 years ago
6 0
She can rent 6 videos :)
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Answer: round it up to 5

Step-by-step explanation:

2/3 time 7 = 14/3

14/3= 4.6

if the number after the decimal is above 5 you may round up

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3 years ago
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the is x 10

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2 years ago
Calculate the (modeled) probability P(E) using the given information, assuming that all outcomes are equally likely.
Luba_88 [7]

The probability P(E) is 13/15.

According to the statement

we have given that the S = {1, 3, 5, 7, 9}, E = {1, 5, 7}

And we have to find the probability P(E).

So, For this purpose

Recall the formula for the probability of an event E in case when all outcomes are equally likely:

P(E)= n(E) /n(S)

in which S is the sample space.

But we have the S = {1, 3, 5, 7, 9},

so, n(S) = Sum of all outcomes / number of outcomes

n(S) = 1+3+5+7+9 /5

n(S) = 25 /5

n(S) = 5 and

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n(E) = 1+5+7 /3

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n(E) = 13 /3

Substitute these values in the above written formula then

P(E)= n(E) /n(S)

P(E)=  (13/3)/ 5

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So, The probability P(E) is 13/15.

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5 0
1 year ago
Could someone do all the problems and/or check my work?
MArishka [77]
11. You’ve done it correctly

12. Let x^2=y
y^2+13y+40=0
(y+8)(y+5)=0
y=8, 5
Since y=x^2
x^2=8 x^2=5
x=+/-√5 x= +/-2√2

13. x^4-x^2-x^2-8=0
x^4-2x^2-8=0
let x^2=y
Y^2-2y-8=0
(y-4)(y+2)=0
y=4, -2
Since y=x^2
X^2=4 X^2=-2
X= +/- 2 This wouldn’t be a real solution

14. It’s pretty much the same process, just substitute y in for x^2. If you’re confused feel free to ask and I can do it, or you can put it through Photomath

15. You’re on the right track so I’m just going to continue from where you left off
x^2(4x+5)-4(x+5)=0
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x=5/4 or 1 1/4

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