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IRISSAK [1]
3 years ago
13

Britney just got a new video game for her birthday. Yesterday, she played for 27 minutes and beat 3 levels. Today, her parents s

aid she can play for 45 minutes. If she beats levels at the same rate, how many levels should Britney beat today?
Mathematics
1 answer:
Tom [10]3 years ago
8 0

Answer:

5 levels

Step-by-step explanation:

To know the rate of her beating levels yesterday, divide the # of minutes she played (27 minutes) to the # of levels she beat (3 levels).

  • 27 ÷ 3 = 9

So she played for 9 minutes to beat a single level.

Since she will try to beat levels the same rate as yesterday, you will have to divide the #of minutes her parents let her play (45 minutes) to yesterday's rate (9 minutes per level).

  • 45 ÷ 9 = 5

Britney should beat 5 levels today if she wants to beat levels at the same rate as yesterday's.

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What value is true of x makes this equation true 0.7x-5=0.2x+1
Sever21 [200]

Answer:

x=12

Step-by-step explanation:

First you make sure x is on both sides of the equation. So you do 0.7x-5-0.2x=0.2x+1-0.2x. Which just simplifies to 0.5x-5=1. You make sure x is the only thing on that side of the equation so you do 0.5x-5+5=1+5 which simplifies to 0.5x=6. Multiply the equation times 2 to just have x. x=12. The value that makes true of x is 12.

7 0
3 years ago
A cab company charges $0.80 per mile plus $2 for tolls. Melissa has at most $16 to spend on her cab fare. Write and solve an ine
Anna35 [415]

Answer:

The maximum distance is 17.5 miles

No she can't make to the airport.

Step-by-step explanation:

Given the cab charges $0.8 per mile and $2 for tolls.

let the miles travelled by melissa be x.

The total charge is $(0.8*x+2)

Now given that she can spend a maximum of $16

so the inequality is

0.8*x+2\leq 16

0.8*x\leq 14

x\leq \frac{14}{0.8}

x\leq 17.5

Therefore the maximum distance she can travel is 17.5 miles

Since the distance to airport is 25 miles which is greater than 17.5 miles she cannot afford the cab.

3 0
3 years ago
A recent article in the paper claims that business ethics are at an all-time low. Reporting on a recent sample, the paper claims
dedylja [7]

Answer:

The correct solution is "0.127128".

Step-by-step explanation:

The given values are:

p = 0.31

n = 20

Now,

p(8

                     =20C_{9}(0.31)^9\times (0.69)^{11}+20C_{10}(0.31)^{10}\times (0.69)^{10}+20C_{11}\times (0.31)^{11}\times (0.69)^{9}

=0.074955+0.037043+0.015130

=0.127128

5 0
2 years ago
Plz help me answer this question is it A,B C or D
exis [7]

if its asking you to round then D

Step-by-step explanation:..........................................................................................

7 0
3 years ago
Please help me what is the answer?​
bagirrra123 [75]

Answer:

I guess 4

Step-by-step explanation:

4

8 0
3 years ago
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