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3 years ago

14

Piper is helping her dad lay out purple tiles to make completed they have done all of this they are 16 tiles and they filled it

up with 7 how many do they need to fill the whole entire tiles

1 answer:

9966 [12]3 years ago

6 0

Answer:

9 tiles needed to fill

Step-by-step explanation:

16 - 7

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A $20,000 car decreases in value by 15% each year how much is the car worth after three years

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Step-by-step explanation:

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Find the values of a and b such that x² - 4x+9 = (x+a)² + b

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Seven times a number plus five equals two times the number???

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3 years ago

A bag contains 135 marbles some white and some transparent. The ratio of white marbles to transparent ones is 3 : 6. How many wh

Setler [38]

Answer:

Number of white marbles in the bag = 45

Step-by-step explanation:

Total number of marbles in the bag = 135

Ratio of white marble to transparent ones = 3 : 6

Let number of white marbles be $=3k$

Then number of transparent marble will be $=6k$

Total number of marbles will be $=3k+6k=9k$

So we have.

$9k=135$

Dividing both sides by 9.

$\frac{9k}{9}=\frac{135}{9}$

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∴ Number of white marbles in the bag = $3k=3\times15 = 45$

5 0

3 years ago

the sum of three numbers is 144. the third number is 4 times the first. the second number is 6 more than the first. what are the

Law Incorporation [45]

First I would change the descriptions of the numbers into expressions.

first number is n
second number is n + 6
third number is 4n (4 x n)

Then you would insert these expressions into an equation and isolate n.

n + n + 6 + 4n = 144
n + n + 4n = 144 - 6
6n = 138
n = 138/6
n = 23

Lastly, you would plug in this value into all of the expressions.

first number is 23
second number is 23 + 6 = 29
third number is 4(23) = 92

Therefore, the numbers are 23, 29, and 92.

7 0

3 years ago