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Mashutka [201]
3 years ago
6

A recipe for cookies calls for 3 1/4 cups of sugar. Amy has already put in 3 1/9 cups. How many more cups does she need to put i

n?
Mathematics
2 answers:
telo118 [61]3 years ago
8 0
The answer in 5/36 of a cup
sammy [17]3 years ago
5 0
So 3 and 1/4 is equal to 4/4+4/4+4/4+1/4=13/4

so she put in 3 and 1/9 or 9/9+9/9+9/9+1/9 or 28/9

28/9+x=13/4
13/4-28/9=x

so we convert so that the bottom numbers are the same

a short cut is 3 and 1/4+x=3 and 1/9 
3 1/9+x=3 1/4
subtract 3 from both sides
1/9+x=1/4
subtract 1/4 from both sides
x=1/4-1/9
convert bottom number to same thing
1/9=4/36
1/4=9/36
x=9/36-4/36
x=5/36
5/36 cups
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Gabe is planning on riding the roller coaster 25 times. If he has already ridden 36% of his 25 times, how many times has Gabe al
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3 years ago
3 + 6 x (5 + 4) ÷ 3 -7?
ch4aika [34]

Answer:

Answer: 14

Step-by-step explanation:

{ \rm{3 + 6 \times (5 + 4) \div 3 - 7}} \\  \\  = { \rm{3 + (6 \times 9) \div 3 - 7}} \\  \\  = { \rm{3 + (54 \div 3) - 7}} \\  \\  = { \rm{14 }}

3 0
2 years ago
Help me out from this question pls
Kazeer [188]

We could multiply or divide to get these boxes, but these are about multiplying or dividing by a power of 10, which can be done by counting digits, adding zeros or moving decimal points around.

To get from 2.5 to 250 we have to move the decimal point two places to the the right, appending a needed zero to do so.  Each digit the decimal point moves is a factor of ten.  Moving to the right is multiplying by 10.  Moving to the left is dividing by 10.  

Here we moved the decimal point two places to the right, two factors of 10, so we multiplied by 100.  Two times 100 is 200 so we see we're in the ballpark.

a. 100

For part B we're going from 3.2 to .0032.  That's moving three decimal places to the left, prepending zeros as needed, so dividing by three factors of 10, aka 1000. 

b. 1000

To go from 0.17 to 1.7 is one decimal place to the right, multiplication by 10.  Hopefully we can understand something around 2 is 10 times bigger than something around 0.2.

c. X


4 0
4 years ago
Read 2 more answers
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Well lets do the math


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2480 + 1760 = 4240

So we need 2 first class and 8 coach.

8 0
3 years ago
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