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kicyunya [14]
3 years ago
10

What is 99999999+-4?

Mathematics
2 answers:
iVinArrow [24]3 years ago
8 0
99,999,999 + (-4) is basically 99,999,999 - 4

99,999,999 - 4 = 99,999,995
juin [17]3 years ago
4 0
99999999+-4 is actually 99999999-4 so remember that a positive plus a negative is actually subtracting a positive so 99999999+(-4) is <span>99999995.</span>
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lilavasa [31]

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Step-by-step explanation:

Let x represent the speed of the boat in still water.

Let y represent the speed of the current.

Impeded by the current the outing club took 4 hours and 24 minutes(4 + 24/60 = 4.4 hours) to paddle 11 km up the exeter river to their campsite last weekend. This means that the total speed with which they travelled is (x - y) km/h

Distance = speed × time. Therefore

11 = 4.4(x - y)

Dividing through by 4.4, it becomes

2.5 = x - y - - - - - - - - - - -1

The next day the same current was with them and it took only 2 hours to make the return trip to campus. This means that the total speed with which they travelled is (x + y) km/h. The distance travelled is

11 = 2(x + y)

Dividing through by 2, it becomes

5.5 = x + y - - - - - - - - - - -2

Adding equation 1 to equation 2, it becomes

8 = 2x

x = 8/2 = 4

Substituting x = 4 into equation 1, it becomes

2.5 = 4 - y

y = 4 - 2.5

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3 0
3 years ago
Tony spent $50.35 on office supplies. He bought markers for $3.80 each and an organizer for $19.95. How many markers did tony bu
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Answer:

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Take the total, 50.35, and subtract 19.95:

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5 0
3 years ago
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oksian1 [2.3K]
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Serggg [28]

Answer:

Step-by-step explanation:

(-4 + 3)/2= -1/2

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6 0
3 years ago
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ElenaW [278]

Answer:

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Step-by-step explanation:

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2 years ago
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