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4 years ago

A taxi charges $7.50 plus $0.45 per mile.

1 answer:

6 0

$7.50(2)=$15.00 (She takes the taxi twice, and its $7.50 each time she takes it)
$0.45(16)+$0.45(8)=$10.80 (Each mile is $0.45, she goes 16 miles on the way to work, and only 8 miles on the way home. Since she walks half way and takes the taxi the other half. Half of 16 is 8)
$15.00+$10.80=$25.80
Alexis pays $25.00 per day for her taxi rides.

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A college radio station sponsors a contest once a week. One resident from a dormitory calls in and tries to answer ten questions

Leni [432]

Answer:

There were 8 correct answers and 2 incorrect answers.

Step-by-step explanation:

The contest consists of paying $50 for each correctly answered question and subtracting $25 for each incorrectly answered question.

Let's call:

x = Number of correct answers

y = Number of incorrect answers

The resident from a dormitory answered 10 questions last week. This leads to the following condition:

$x + y = 10\qquad\qquad [1]$

Since each correct answer adds $50 and each incorrect answer subtracts $25, the weekly balance is

50x - 25y

The contestant earned $350, thus:

50x - 25y = 350

Dividing by 25:

2x - y = 14

Adding this equation with [1]:

x + 2x = 24

Simplifying:

3x = 24

x = 24 / 3

x = 8

From [1]:

y = 10 - x = 10 - 8

y = 2

There were 8 correct answers and 2 incorrect answers.

3 0

3 years ago

250 students were asked to choose their favorite color. How many more students chose purple than red as their favorite color? 26

nevsk [136]

Answer:

10 more students chose purple than red as their favorite color

Step-by-step explanation:

Step 1

Determine the proportion of students that chose each color

purple=26%

red=22%

Step 2

Use the expression for the number of students per color as follows;

Number of students per color=proportion per color×total number of students

for purple;

proportion that chose purple=26%

total number of students=250

replacing;

Number of students that chose purple=(26/100)×250=65 students

for red;

proportion that chose red=22%

total number of students=250

replacing;

Number of students that chose purple=(22/100)×250=55 students

Step 3

Difference=65-55=10

10 more students chose purple than red as their favorite color

6 0

4 years ago

Megan surveyed a random sample of 60 students at her school and found that 42 of them ride the bus to school each day. If there

Alisiya [41]

Do a ratio problem:
42/60=x/320
x= 224 students ride the bus to school

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!! What is the y-intercept of the line graphed?

fredd [130]

check the picture below.

7 0

3 years ago

Help me pls i need this

Marina CMI [18]

so the right answer is 28 hours.

Hope this will help u...

Look at the attached picture⤴

8 0

3 years ago