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Mama L [17]
2 years ago
8

How do you find theGreatest common factor for 15 and 40

Mathematics
1 answer:
mart [117]2 years ago
6 0

Answer:

See Explanation

Step-by-step explanation:

15 = 3 \times  \bold{ \red{ \boxed5}} \\  \\ 40 = 2 \times 2 \times 2 \times \bold{ \purple{ \boxed5}} \\  \\ common \: factor \:  of \: 15 \: and \: 40= 5 \\  \\  \therefore \: gcf \: of \: 15 \: and \: 40 = 5

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Rachel has 8 coins. The amount of her coins is 74 cents what coins does rachel have
Brums [2.3K]

Answer:

Two quarters (50 cents)

Two dimes (20 cents)

Four pennies (4 cents)

Step-by-step explanation:

Guess and check.  

4 0
3 years ago
Kim went to the grocery store to get some snacks. She bought 3 bags of chips at 89¢ each, 5 candy bars at 50¢ each, and one thre
wariber [46]
The chips all together are 2.67, the candy bars total 2.5, the soda bottle is 1.89$. Add that all together for a total of 7.06. Multiply that by 1.08 to account for taxes and get 7.62.
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3 years ago
he books in a private library are classified as fiction and nonfiction. There are 400 books in the library. There are 40 more fi
vfiekz [6]
First, you have to set a system of equations to determine the number of fiction and of nonfiction books.Call f the number of fiction books and n the number of nonfiction books. Then 400 = f + n. And f = n + 40 => n = f - 40 => 400 = f + f - 40 => 400 - 40 = 2f => f = 360 / 2 = 180. Now to find the probability of picking two fiction books, take into account the the Audrey will pick from 180 fiction books out of 400, and Ryan will pick from 179 fiction books out of 399, so the probability will be<span> (180/ 400) * (179/399) = 0.20 (rounded to two decimals). Answer: 0.20</span>
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3 years ago
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8 0
3 years ago
Solve for y:<br> x + 2y = -8<br><br> y=-1/2x+4<br> y=-1/2x-4<br> y=-2x - 4<br> y=1/2x-4
adelina 88 [10]

Answer:

x + 2y = -8 = y = -4 - 1/2x

y= -1/2x + 4 =  y = 4

y= -1/2x - 4 = y = -4

y=-2x - 4 = y = -4

y=1/2x-4 = y = -4

Step-by-step explanation:

(x + 2y = -8 = y = -4 - 1/2x)

x+2y=-8\\2y=-8-x\\y=-4-\frac{1}{2}x\\

4 0
3 years ago
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