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Lera25 [3.4K]
3 years ago
7

How to solve 7+(-15)+12

Mathematics
2 answers:
Dmitry [639]3 years ago
8 0
7+(-15)+12
Adding a negative number is the same as simply subtracting it.
7-15+12
7 - 15 = negative 8 (use a number line)
-8 + 12 = 4 (use a number line)
makvit [3.9K]3 years ago
8 0
7 + (-15) + 12

First, simplify brackets. / Your problem should look like: 7 - 15 + 12.
Second, simplify. / Your problem should look like: 4.

Answer: 4

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Jorden leaves home for school on his bike everyday at 6:00 AM, traveling at 32 km/h. one day he forgot his homework, which his m
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Answer:

She caught up with Jordan at 6:39 AM

Step-by-step explanation:

We solve this question making linear functions for the distances that Jorden and his mom have driven, and then we equalize them to find the moment they caught up.

Jorden leaves home for school on his bike everyday at 6:00 AM, traveling at 32 km/h.

Her mom will have left 15 minutes after he left, when he will already have traveled \frac{15*32}{60} = \frac{32}{4} = 8\text{km}

So, his position after t minutes can be modeled by the following function:

J(t) = 8 + 32t

His mom

His mom goes after him starting from home, so the initial position is 0, with a velocity of 52 km/h. So her position can be modeled by the following function:

M(t) = 52t

At what time did she catch up with Jorden,

She catches up t minutes after 6:15 AM.

t is found when

M(t) = J(t)

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8 + 32t = 52t

20t = 8

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t = 0.4

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Allison is offered an annual salary of $24,500. What would be her biweekly gross pay? (Round to the nearest cent.) A. $2,041.67
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Answer:

Option (B) is correct.

Allison biweekly gross pay is $942.31

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Given annual salary offered to Allison  = $24,500.

We have to calculate Allison biweekly pay that is pay Allison got for 2 weeks

To calculate biweekly we first find Allison weekly pay then multiply it by 2.

We know there are 52 weeks in a year.

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                                       = 942.307(approx)

Thus, Allison biweekly gross pay is $942.31




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