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agasfer [191]
3 years ago
10

11/5 - 7/4 + 2/1 evaluate​

Mathematics
1 answer:
irga5000 [103]3 years ago
4 0

Step-by-step explanation:

11/5−7/4+2/1

=49/20(Decimal: 2.45)

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A piece of fabric is randomly selected from a stack of fabric that contains 80 striped, 40 solid, and 60 polka-dotted pieces.
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No, I just took the test, 

The answer would be 

C. P(solid)22
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Dwayne is finding the base of the triangle shown. It's area is 100 square meters. find his mistake and correct it.
EleoNora [17]

100 =  \frac{1}{2} 20 \times (b) \\ 100 = 10b \\ b = 10
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A coin purse contains d dimes and q quarters.There are 20 coins in the purse and the total value of the coins is $4.25.which sys
mel-nik [20]
25q + 10d = 425
q + d = 20

First thing's first, picture 4 quarters. Do you know how much these 4 quarters are worth? Obviously, you'd answer one dollar, but take the time to think about how exactly you came up with this answer.

"Well, it's simple," you might think, "Multiply 0.25 by 4."

Similar to this train of thought, the first equation is formulated by doing exactly that. 'q' represents an unknown number of quarters, and 'd' an unknown number of dimes. We use 25q and 10d, because, well, we're multiplying their value by the number of coins. They're equivalent to 425 because the 20 unknown coins make $4.25 (I converted it to cents to get rid of the pesky decimals, but if you want to keep it as dollars that works too).

Because the equation states that there are 20 coins in total, we know that we can make the equation 'q + d = 20' since there are 20 quarters and dimes in total.

Let me know if you need any further explanation :)
-T.B.
3 0
3 years ago
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Ariana and Sean went out to dinner with their parents. The price paid for their meal was $75.60 before taxes. The sales tax rate
KengaRu [80]

Answer: $97.524

Step-by-step explanation:

First let's calculate the price after the tax rate:

converting 7.50% to a decimal = 0.0750 now we multiply the sales tax by 75.60 which equals $5.67 add it to 75.60 = 81.27 (our new total)

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6 0
4 years ago
Write to explain how you can break apart 16*34 into four simpler multiplication problems
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16 is 10 +6, and 34 is 30+4
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4*6=24
add them up: 300+40+180+24=544

Using an array to break
<span>https://www.lake.k12.fl.us/cms/lib05/FL01000799/Centricity/Domain/7908/Topic%204%20Centers%204th%20g...</span>


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