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nevsk [136]
3 years ago
7

A rock is thrown from the top of a 763 feet tall

Mathematics
1 answer:
prisoha [69]3 years ago
4 0

Answer: 4.5 Seconds

Step-by-step explanation:

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Solve each equation. Show your work<br><br> 13a=-5<br> 12−b=12.5<br> -0.1=-10c
amid [387]
1) 13a=-5
Make a the subject of the formula by dividing both sides by 13(the coefficient of a)
13a/13=-5/13
Therefore a= -0.385

The second one). 12-b= 12.5
You take the 12 to the other side making b subject of the formula (-b in this case)
-b= 12.5-12
-b= 0.5
(You cannot leave b with a negative sign so you will divide both sides by -1 to cancel out the negative sign)

-b/-1= 0.5/-1
Therefore b=-0.5

The third one). -0.1= -10c
You will divide both sides by the coefficient of c(number next to c) which is -10
-0.1/-10= -10c/-10

Hence, c= 0.01
5 0
3 years ago
Please do this for me <br><br> I am very lazy
Alexandra [31]

First, let's turn all the numbers into improper fractions so that we can find the answer easier.

-2 \frac{1}{4} = r - \frac{4}{5}

-\frac{9}{4} = r - \frac{4}{5}

Now we have to isolate 'r'.

First, we have to make sure that the variable is on one side and all the numbers are on the other side.

To do this, we have to add \frac{4}{5} to both sides.

In order to do this, we need to ensure that both fractions have a common denominator.

-\frac{9}{4} = r - \frac{4}{5}

Ensure that the denominators are the same:

\frac{45}{20} = r - \frac{16}{20}

\frac{45}{20} + \frac{16}{20} = r

\frac{61}{20} = r

Good luck!

6 0
3 years ago
Your cell phone bill in August was $61.43, which was $21.75 more than your bill in July. Your cell phone bill in July was $13.62
irina [24]

Answer:

$53.30

Step-by-step explanation:

61.43-21.75=39.68 is the cell phone bill in July.

39.68+13.62= 53.30 is the phone bill in June.

3 0
3 years ago
Read 2 more answers
a rectangular has a perimeter of 50 centimeters if the width of the rectangular is 10 centimeters what is its length
kogti [31]
10+10=20 50-20=30/2= 15 cm for length
5 0
2 years ago
Find the sticker price and dealer's cost for the Tarop Series car. The base price given is $24,990.00. The options for the Tarop
podryga [215]

Alright, lets get started.

The base price is given : $ 24990

The dealer pays 76% of the base price means

he pays for base price : 24990 * \frac{76}{100}

he pays for base price : $ 18992.4

For options, total : 868 + 452 + 1260 = 2580

He pays 88% for options, means

he pays for options : 2580 * \frac{88}{100}

he pays for options : $ 2270.4

So, total dealer pays : 18992.4 + 2270.4 + destination charges

So, total dealer pays : 18992.4 + 2270.4 + 630 = $ 21892.8

Hence dealer's cost : $ 21892.8

Price of sticker will be : 24990 + 868 + 452 + 1260 + 630

Price of sticker will be : $ 28200

dealer's cost : $ 21892.8

Hope it will help :)

4 0
3 years ago
Read 2 more answers
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