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2 years ago

Solve for x x-4/5=7 Give your answer as an improper fraction

Mathematics

1 answer:

andrezito [222]2 years ago

5 0

<h3>Answer: x = 39/5</h3>

Work Shown:

x - 4/5 = 7

x = 7 + 4/5

x = 35/5 + 4/5

x = (35+4)/5

x = 39/5

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You could say one person is at 1:5 and say they moved up and up

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4 years ago

How much acetic acid is in a 5-liter container that is marked 80% acetic acid? How

Ksenya-84 [330]

Answer:

1 liter I think?

Step-by-step explanation:

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3 years ago

Which of the following events are dependent?

cestrela7 [59]

Answer:

A. Archie and Harris take turns picking yellow- or purple-colored chips from a dish.

C. Lily draws a marble from a bag filled with red and blue marbles, places her selection in a separate bag, and draws from the original bag of marbles again.

Step-by-step explanation:

Two events will be dependent if the first event influences the probability of the second event. If the first event takes something and doesn't put it back, that means the second event can't pull the same roll and the total pool of items changed.

A. Beth and Corrie take turns picking a card at random and recording each outcome. They replace the selected card at the bottom of the pile after each turn.

This option put replace the card, so it is independent

B. Archie and Harris take turns picking yellow- or purple-colored chips from a dish.

No replacement, the event should be dependent.

C. Jared pulls out a sock from the laundry basket containing white and black socks, puts it back, and then draws another sock at random.

This option put back the pulls, so it is independent

D. Lily draws a marble from a bag filled with red and blue marbles, places her selection in a separate bag, and draws from the original bag of marbles again.

No replacement for the marble taken, each draws probability should depend on the earlier draw result.

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3 years ago

In a group of 60 students, 12 students take Algebra I, 18 students take Algebra II, and 8 students take both subjects. How many

vodomira [7]

Since 8 students take both, that leaves only 4 students who take Algebra I alone.
Likewise since 8 students take both, that leaves 10 who only take Algebra 2
So out of the 60, twenty two are taking either Alg I Alg Ii or both.

That leaves 38 people who are not taking either.
b. 38

You can set this up using a 2 circle venn diagram. Just be sure to put the 8 who take both in first.

4 0

3 years ago

Read 2 more answers

Please HELP. ALSO WHY. 2 question. pLZZ

avanturin [10]

Answer:

1). Number of kids on the other side = 16

2). Brian took the time to each piece of pie = 20 seconds

Step-by-step explanation:

1). Let the number of kids on one side = x

Then the number of kids on other side = 2x

3 adults helped the side having number of kids = x, then the number of people on this side = x + 3

Since the total number of people on this side = 11

Then the equation will be,

x + 3 = 11

x = 11 - 3

x = 8

Then number of kids on the other side = 2x = 2×8

= 16

2). By unitary method,

∵ Brian took the time to eat 6 pieces of the pie = 2 minutes

∴ Brian will take time to eat 1 piece of pie = $\frac{2}{6}$ minutes

= $\frac{2}{6}\times 60$ seconds

= 20 seconds

6 0

3 years ago