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masha68 [24]
4 years ago
9

I need help on number 15

Mathematics
1 answer:
Anna11 [10]4 years ago
4 0
500 place and tens place
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Twice the sum of a number, n, and seven is four less than the quotient of a number, n, and three.
deff fn [24]

Answer:

Step-by-step explanation:

2(n+7)=\frac{n}{3}-4\\ \\ 2n+14=\frac{n-12}{3}\\ \\ 6n+42=n-12\\ \\ 5n+42=-12\\ \\ 5n=30\\ \\ n=6

3 0
3 years ago
Write an expression to determine the length of the room in units of 3 feet.
Mnenie [13.5K]

Answer:

  • 1/3L

Step-by-step explanation:

<u><em>The question with some background info added:</em></u>

  • <em>When measuring the dimensions of a room a carpenter uses a tape measure that only displays a number of feet, L, on the metal tape. (The carpenter's tape measure does not display inches) </em>
  • <em>Write an expression to determine the length of the room in units of 3 feet. </em>
<h3>Solution</h3>

Let the length of the room be L feet measured by the carpenter

<u>Then</u>

  • L/3 = 1/3L would be measure of the length in units of 3 feet

5 0
3 years ago
Which expression would be easier to simplify if you used the associative
user100 [1]

Answer:

A

Step-by-step explanation:

50 plus 50 is the easiest number to add so in the associative property you put the easiest problem in parentheses so you can do it first like answer A is

5 0
3 years ago
Read 2 more answers
You have a 1.5 litre bottle of water and drink 295 millilitres. Your friend drinks 135 millilitres. How much is left?
inna [77]
Convert liters to milliliters so that you have one unit for all of the amounts in the question.

1 liter is equal to 1000 milliliters, so multiply the 1.5 liters you have by 1000:

1.5 * 1000 = 1500

Since you drank 295 milliliters, and your friend drank 135 milliliters, you will subtract those values from the amount in the bottle:

1500 - 295 - 135 = 1500 - 430 = 1070

There is 1070 milliliters of water left in the bottle. 

If you want to find the amount remaining in the bottle in liters, divide the amount remaining by 1000 to convert milliliters to liters:

1070 / 1000 = 1.07

Converted back into liters, there is 1.07 liters of water left in the bottle.
6 0
3 years ago
Henry and 3 friends went to Lake Tahoe for a winter weekend. Henry made 19 cups of hot chocolate. Everyone, including, Henry, wa
r-ruslan [8.4K]
19 cups of hot coco for four friends, (Henry plus the 3 friends) 19 divided by 4 is 4.75
4 0
2 years ago
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