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Lubov Fominskaja [6]
3 years ago
12

Whats the answer to this? ‐13−23= ‐13 +-23

Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

Answer:

-36

Step-by-step explanation:

‐13−23= ‐13 + (-23) =  -36

Both 13 and  23 have negative sign. So if two numbers have the same sign, we have to add and put the same sign.

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1/x(x-2) + 1/x = 5/x(x-2)
Juli2301 [7.4K]

1/x(x-2) + 1/x = 5/x(x-2)

Let's clear the fractions by multiplying both sides by x(x-2)

1 + (x-2) = 5

x = 6

Check

1/(6(6-2))+1/6 = 5/24

5/(x(x-2)) =5/(6(4))= 5/24, good

Answer: x=6

7 0
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Michael will attend college in 5 years. He anticipates he will need $19,000 to pay for the first year. He currently has $6,400 i
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If the base in an exponential function is greater than 0, the graph of the equation will always show exponential growth. T/F
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A tank that is 40% full contains 648 gallons of water. Use a double number line to find the maximum capacity of the water tank.
natali 33 [55]
We know that
Double number lines<span> are best used to visualize equivalent ratios and describe a ratio relationship between two quantities.
</span>
<span>start with the par 40% - 648 gal and let's calculate the other missing data
to find 10%-------> multiply 648 gal by (1/4)
</span>to find 20%-------> multiply 648 gal by (1/2)
to find 30%-------> multiply 648 gal by (3/4)
to find 50%-------> multiply 648 gal by (5/4)
to find 60%-------> multiply 648 gal by (6/4)
to find 70%-------> multiply 648 gal by (7/4)
to find 80%-------> multiply 648 gal by (8/4)
to find 90%-------> multiply 648 gal by (9/4)
to find 100%-------> multiply 648 gal by (10/4)<span>

</span>Here is what the numbers would look like on a number line.  They are lined up.
10%  20%  30%  40%  50%  60%  70%  80%  90%  100%
162   324   486   648   810   972   1134  1296  1458  1620

the answer is
the maximum capacity is 1620 gallons of water.
4 0
3 years ago
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