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3 years ago

Please help with with number 3,4 and e-g please and also explain how you got the answer

Mathematics

1 answer:

Annette [7]3 years ago

7 0

e: 1/2 x (2)=8*2 x=16
f:(-4/3)(-3/4 x)=9(-4/3) x=-36/3= -12 x=-12
g(-8/7)(-7/8 x)=(-8/7)(-21/64) Cross simplify and you get 3/8 x=3/8

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six times jason collection of books and one third of nathan collection add up to 134 books. one third of jason collection and na

raketka [301]

Answer:

j = 21 and n = 14

Step-by-step explanation:

we have the equations:

6j + n/3 = 134

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j + 3n = 93

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6 0

3 years ago

A piece of pipe is 303/4 inches long. If five pieces, each 41/3 inches long, are cut from the pipe, how many inches of pipe rema

galina1969 [7]

So, what is the total lenght of the pieces that wer cut off?

we multiply the lenght by the number:

4 $\frac{1}{3}$ *5=20+ $\frac{5}{3}$ =21 $\frac{2}{3}$

and we subtract this from the original pipe, that is

30 $\frac{3}{4}$ -21 $\frac{2}{3}$

we need to bring the two fractions to the same denominator (by multiplying the fraction art in the first by 3 and 4 the second):

30 $\frac{9}{12}$ -21 $\frac{8}{12}$ =9 $\frac{1}{12}$

so the correct answer is D!

3 0

3 years ago

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vesna_86 [32]

Answer:

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This is an upward opening parabola, so it has a minimum.

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3 years ago

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3 years ago

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Elena L [17]

Answer:

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3 years ago

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