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Alborosie
3 years ago
7

Calculate: 0.3 of 14

Mathematics
2 answers:
jasenka [17]3 years ago
8 0

100% --> 14

30% --> x

100x = 420

x= 420/100

x=4.2


Ber [7]3 years ago
7 0

Answer:

The answer is 4.2

Step-by-step explanation:

Always remember that when they use the word of, it means you have to multiply. So 14 times 0.3 is 4.2

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5 and 7

Step-by-step explanation:

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a package of markers includes 3 black markers and 9 colored markers. What percent of the markers in the package are colored mark
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0.75

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What is the median of, 18, 16, 13, 10, 9.5, 8.5, 7.5, and six????
Katyanochek1 [597]
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Suppose the leader of a camping trip is putting together a trail mix
wel

Answer:

8 pounds of peanuts, 6 pounds of raisins and 6 pounds of chocolate chips

Step-by-step explanation:

Let x be the number of pounds of peanuts and y be the number of pounds of raisins and chocolate chips.

Peanuts cost $2 per pound, then x pounds cost $2x.

Raisins cost $2.50 per pound, then y pounds cost $2.50y.

Chocolate chips cost $4 per pound, then y pounds cost $4y.

In total, x+y+y=20 and those 20 pounds cost

2x+2.50y+4y=20·2.75.

Solve the system of two equations:

\left \{ {{x+2y=20} \\ \\ \\ \\ \\ \\ \atop {2x+6.5y=55}} \right.

From the first equation:

x=20-2y

Substitute x into the second equation:

2(20-2y)+6.5y=55\\ \\40-4y+6.5y=55\\ \\2.5y=15\\ \\25y=150\\ \\y=6\\ \\x=20-2\cdot 6=8

8 0
3 years ago
What is 4 1/4 * 4/34 =
Natali5045456 [20]

4 1/4 = 16/4

17/4 : 4/34 =

17/4 * 4/34 =

1/2


5 0
3 years ago
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