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Svet_ta [14]
3 years ago
6

The wind blew away 20 of your muffins. That was 4/9 of all of them.with how many did you start​

Mathematics
2 answers:
Leona [35]3 years ago
8 0

Answer:

5/6

Step-by-step explanation:

30=5/6 of all your muffins

times both sides by 6/5

180/5=30/30 of all your muffins

36=1 of all of your muffins

lawyer [7]3 years ago
6 0

Answer:

45

Step-by-step explanation:

20/4= 5

5(9)= 45

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A sweater originally costs $36. If the sweater is on sale for $30.24 what is the percent of the discount
skelet666 [1.2K]
I think not sure but i think the discout is $5.76
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3 years ago
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A recipe calls for 3/4 cup of butter. Angie wants to triple the recipe, but she has only 1 5/8.
Lyrx [107]
Let's start out by tripling the original recipe to see how much butter Angie needs.

\frac{3}{4} * 3 = total
\frac{3* 3}{4} = total
\frac{9}{4} = total
2 \frac{1}{4} = total

So we need 2 \frac{1}{4} cups of butter, but Angie only has 1 \frac{5}{8}. Let's subtract what Angie has from the total to see how much more she needs.

2 \frac{1}{4}  -  1\frac{5}{8} = n
\frac{9}{4} - \frac{13}{8} = n
we will need the least common denominator for both fractions
\frac{2}{2} *(\frac{9}{4}) - \frac{13}{8} = n
\frac{18}{8} - \frac{13}{8} = n
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So Angie need \frac{5}{8} cups more of butter for the recipe.

7 0
3 years ago
Simplify 3/5a * 1/a^2
slamgirl [31]
Multiplied: <span>3/5a
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4 0
4 years ago
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y = 2x squared + 5x -3 can be written in the form y= 2( x+a) squared + b . Find the value of a and the value of b.
Elan Coil [88]

General vertex form:

y = m(x − a)² + b  \: with  \: vertex \:  at \:  (a, b)

Given :

y = 2x² + 5x  - 3

Extract "spread factor" m

y = 2( x² +  \frac{5}{2} x) - 3

Complete the square

y = 2(x²  +  \frac{5}{2}x + ( \frac{5}{4})²) - 3

- 2( \frac{5}{4})²

Write as a squared binomial and simplify the constant

y = 2(x +  \frac{5}{4})² - 6 \frac{1}{8}

Re-write to match signs of standard general form:

y = 2(x - ( -  \frac{5}{4}))² \:  + ( - 6 \frac{1}{8})

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inna [77]

Answer:

0.6 books

Step-by-step explanation:

Divide 9 by 15 to get 0.6 books a month

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