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2 years ago

Chad has 40% less money than Erin.Erin has $240 .How much money does chad have?

Mathematics

2 answers:

romanna [79]2 years ago

8 0

Answer:

Step-by-step explanation:

Use g00g*e- just type --% of $----.

sorry its censors the word.

Annette [7]2 years ago

7 0

Answer:

Chad has: $144

Step-by-step explanation:

First we need to get 40% of 240 which we can do by multiplying 240 by 0.40.

240 * 0.40 = 96

Now we can just take what we got for 40% of 240, and then subtract it from 240.

240 - 96 = 144

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. He rowed 3 1/2 miles in 1/2 hour.What is the average speed in miles per hour.

Rudiy27

Answer:

7 miles per hour

Step-by-step explanation:

3 1/2 miles = 7/2 miles

1/2 hours= 30 minutes

So,

In 30 mins, travelled 7/2 miles

In 1 min, travelled 7/2 ÷ 30= 7/2× 1/30 = (7×1)/(2×30) = 7/60 miles

In 60 mins, travelled (7×60)/60 miles = 420/60 miles = 7 miles.

Hence, the speed is 7 miles per hour.

Hope this helps :)

7 0

2 years ago

Find the equation of the line that contains the point (4, - 2) and is perpendicular to the line y = - 2x + 5.

Licemer1 [7]

<h3>Answer:</h3>

y=1/2x

<h3>Solution:</h3>

The slopes of perpendicular lines are opposite reciprocals of each other.
The simplest way to determine a number's reciprocal is to flip it over, like so:
$-2 ~ - > -\displaystyle\frac{1}{2}$
Now, change the sign:
$\displaystyle\frac{1}{2}$
So we have the <em>slope </em>of the line that's <em>perpendicular </em>to the given line.
Now, let's find the line's equation.
First, let's write it in Point-Slope Form:
y-y1=m(x-x1)
y-(-2)=1/2(x-4)
y+2=1/2x-2 (Point slope)
Now, convert to slope-intercept:
y=1/2x+2-2
y=1/2x

Hope it helps.

Do comment if you have any query.

5 0

2 years ago

Read 2 more answers

Sheila predicts that 480 people will attendthe fall concert. There was an actual total of 350 people who attended the fall conce

iris [78.8K]

Answer:

27 %

Step-by-step explanation:

Given that Sheila predicts that 480 people will attendthe fall concert and There was an actual total of 350 people who attended the fall concert.

We know that

Percent error = $\frac{people present-predicted people}{predicted people}\times100$