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Gekata [30.6K]
3 years ago
12

What is a+2 divided by 2 = -1?

Mathematics
1 answer:
yan [13]3 years ago
5 0
\frac{a+2}{2}=-1\ \ \ /\cdot2\\\\2\cdot\frac{a+2}{2}=-1\cdot2\\\\a+2=-2\ \ \ /-2\\\\a+2-2=-2-2\\\\a=-4
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Anne gave birth to a pair of mice. The female gave birth to eight mice, four male and four female. The five females gave birth t
sattari [20]

If Anne gave birth to four males and four females, and they all gave birth the same way again, they would have eight males, but if it were to happen again, there would be 12 males and 12 females in total if you don't count all of the females giving birth EACH to four males and four females. Otherwise it would be 40 males, and 40 females.

3 0
4 years ago
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If John has $400 in his savings account. If he spends $50. how much will his account decrease?
olga55 [171]

Answer:

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4 0
3 years ago
What is the percent change from 36 to 63
viva [34]
Initial number = 36
Final number = 63
Change in number = 63 - 36
                               = 27
Percentage change = (27/36) * 100
                                 = (3/4) * 100
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So the percentage change from 36 to 63 is 75%. I hope the procedure for solving is absolutely clear for you to understand. In future you can attempt such problems by following the procedure shown and you will require no further help from outside. Just be careful about the numerator and the denominator.
4 0
3 years ago
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You are on a limited budget and planning a four day camping trip to a national park. bus fare is 75 dollars each way and the rid
Schach [20]

Considering that you are planning the trip with limited budget and only for 4 days (=96h) you must value both time and money when doing it.

If you use the bus you spend $75 + $75=$150 and 12h + 12h = 24h. This means you spend $150 to enjoy 96h - 24h = 72h of actually camping. This means you pay $150/72h = $2,08 per hour of actual camping.

On the other hand if you choose the plane you spend $150 + $ 150 = $300 and 1,5h + 1,5h = 3h. This means you spend $300 to enjoy 96h - 3h = 93h. This means you pay $300/93h = $3,22 per hour of actual camping.

Considering all that, taking the bus his the most cost-effective option (and the cheaper one also).

6 0
3 years ago
Y=5x-2 graphed is 1/3 a solution to the equation
ivolga24 [154]

Answer:

1/3 =5x-2

3(1/3)=3(5x-2)

1=15x-6

7=15x

x=7/15   (7/15 , 1/3)

Step-by-step explanation:

8 0
3 years ago
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