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2 years ago

A cell phone costs $120 dollars. The price is reduced 30% for a sale. How much is the savings?

Mathematics

1 answer:

Ierofanga [76]2 years ago

8 0

Answer: $84

Step-by-step explanation: If the phone costs 120 and it’s reduced by 30% all you have to do is 120 multiplied by 0.3 which equals 36. So you take the original price and subtract it by 36. your answer will be 84

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It took a car 4 hours to travel 180 miles. If the car drove a steady speed, how fast was it going?

tester [92]

Answer:

45 mph

Step-by-step explanation:

It took the car 4 hours to travel 180 miles

Then

It took the car 4/4 hours to travel 180/4 miles

Since 4/4 = 1 and 180/4 = 45

Then

It took the car 1 hours to travel 45 miles

Therefore ,the car was it going at 45 mph

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1 year ago

For the vectors Bold uequalsleft angle negative 8 comma 0 comma 1 right angleand Bold vequalsleft angle 1 comma 3 comma negative

trapecia [35]

Answer:

Step-by-step explanation:

Given that there are two vectors U = (-8,0,1)

V = (1,3,-3)

To find projection of u on V and also projection of V on U

First let us find the dot product U and V

U.V = $-8(1)+0(3)+1(-3)\\= -11$

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Similarly projection of V on U

= $\frac{U.V}{|U|} \\=\frac{-11}{\sqrt{64+0+1} } \\=\frac{-11}{\sqrt{65} }$

4 0

3 years ago

Arrange the numbers in the ascending order: 3/4,1/12,9/16,7/24

OLEGan [10]

Ascending means going up
First change into decimals
3/4=0.75
1/12=0.083
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7/24=0.291666…..

Start from smallest to largest number
0.291666…..,0.5625,0.75,0.083

Find their fractions
7/24,9/16,3/4,1/12

Answer:7/24,9/16,3/4,1/12

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10 months ago

I need answers to all please

valina [46]

Answer:

Step-by-step explanation:

2a.x=10+5

b. x=11-7

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2 years ago

Read 2 more answers

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Keith_Richards [23]

6 and one third. Hope this helps!

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3 years ago