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prisoha [69]
2 years ago
10

Water is added or drained from a tank each day. The first day, 9/10 of a gallon is added to the empty tank. The second day, 7/10

of a gallon is drained from the tank. The third day, 8/10 of a gallon is added to the tank. The fourth day, 610 of a gallon is drained from the tank. The amount of water in the tank after 15 days is given by
9/10+(−7/10)+8/10+(−6/10)+⋯+3/10+(−1/10)+2/10.

How much water is in the tank after 15 days? Write your answer as a decimal.
Mathematics
2 answers:
lorasvet [3.4K]2 years ago
4 0

Answer:

.8

Step-by-step explanation:

9/10+(−7/10)+8/10+(−6/10)+3/10+(−1/10)+2/10.

Luden [163]2 years ago
3 0

Answer:

0.8

Step-by-step explanation:

9/10 + (−7/10) + 8/10 + (−6/10) + 3/10 + (−1/10) + 2/10= 0.8

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Find the lcd of 2/3 and 1/3
wariber [46]
Hello!

The least common denominator is like the least common multiple. As you can see, these numbers already have the same denominators, and cannot be divided any further as they are prime. 

Therefore, our answer is 3.

I hope this helps!
4 0
3 years ago
Read 2 more answers
Liev is assembling a coffee table. The diagram below is from the instruction manual and shows the table after the first two legs
elixir [45]

Answer:

The support is 41 inches long.

Step-by-step explanation:

There's two ways we can do this: one with the diagonal formula and one without.

Since we know that Point C is halfway down leg A and that the table legs are 18 inches tall, Point C is 9 inches down leg A. The support, from Point C to Point D, will form a diagonal, the length of which we need to find. We know from the diagram that the width of the table is 24 inches and that its length is 32 inches. We have a height, length, and width for this problem, so let's imagine a rectangular prism, which has all three of those things, instead of a table. The formula for finding a rectangular prism's diagonal is d = \sqrt{l^{2} + w^{2} + h^{2} }. Let's put in those numbers:

d = \sqrt{32^{2} + 24^{2} + 9^{2} } =  41

Therefore, the support is 41 inches long.

--------------------------------------------------------------------------------------------------------------

Another way you can do this is to use the Pythagorean Theorem twice: once to find the diagonal of the tabletop and another time for the support.

24^{2} + 32^{2} = c^{2} \\576 + 1024 = c^2\\1600 = c^2\\\sqrt{1600} = \sqrt{c^2}\\ 40 = c

Now that we know the corner-to-corner distance for the tabletop, we'll use that and the 9 inch distance for Point C to find the distance between C and D:

9^{2} + 40^{2} = c^{2}\\ 81 + 1600 = c^2\\1681 = c^2\\\\sqrt{1681} = \sqrt{c^2} \\41 = c

Again, the support is 41 inches long.

4 0
3 years ago
Round 415,203 to the thousands place
sergey [27]
415203 rounded to the thousands place is 415,000
6 0
3 years ago
Read 2 more answers
100 POINTS!!<br> What is the value of x? Enter your answer in the box.
MakcuM [25]
The answer should be 46
4 0
3 years ago
Which product will be positive?<br> -6 × 4<br> -6 × (-7)<br> -3 × 8<br> 6 × (-4)
masya89 [10]

Answer:

-6x(-7)( negative and negative = positive)

Step-by-step explanation:

-6x4= -24

-6x(-7) = 42

-3x8= -24

6x(-4) = -24

7 0
3 years ago
Read 2 more answers
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