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Taya2010 [7]
3 years ago
8

13 times an unknown number added to 72 equals -23 times the unknown number.what is the solution to the sentence ?

Mathematics
2 answers:
Alika [10]3 years ago
6 0
Let the unknown number be x
13x+72= -23x
13x+23x= -72
36x= -72
x= -2
wel3 years ago
4 0
The correct answer is -88

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Sue Mitchell weighed 8 lb. 13 oz. when she was born. She now weighs 93 lb. 5
ra1l [238]

Answer:

Weight gain = 84 lb 5 oz

Average weight gain = 6 lb 5 oz

Step-by-step explanation:

lb means pounds

16 oz = 1 pound

Convert the weight to pounds

Weight when she was born = 8 lb. 13 oz

= 8 pounds + 0.8125 pounds

= 8.8125 pounds

Present weight = 93 lb. 5

oz

= 93 pounds + 0.3125 pounds

= 93.3125 pounds

How much has she gained since birth

Weight gain = Present weight - Weight when she was born

= 93.3125 pounds - 8.8125 pounds

= 84.5 pounds

= 84 lb 5 oz

Weight gain = 84 lb 5 oz

what has been her average weight for each year if she is 13 year old

Average weight gain = Weight gain / 13

= 84.5 pounds / 13

= 6.5 pounds

= 6 lb 5 oz

Average weight gain = 6 lb 5 oz

8 0
2 years ago
You work in a chemical lab. Last quarter, you successfully completed an average of about 5 chemical analyses per day. This quart
Kryger [21]

Answer: 60%

Step-by-step explanation:

Since, According to the question,  Last quarter, we successfully completed an average of about 5 chemical analyses per day.

Therefore initially our average = 5 chemical analyses per day.

Again, From the question, This quarter, we have increased this average to about 8 per day.

Therefore New average =chemical analyses 8 per day

Thus, Percentage change in the average = (Initial average - New average)×100/ initial average  

= \frac{8-5}{5} \times 100

= \frac{3}{5} \times 100

= 60 %

Therefore, Percentage change in the average=60 %


7 0
3 years ago
Read 2 more answers
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Kisachek [45]

Answer:

A stem and leaf plot is not suitable in this data because this data is not kind of data for a stem and leaf plot.

Step-by-step explanation:

If you're finding out the mean for this plot You could use a stem and leaf plot.

7 0
3 years ago
At a bus stop station, buses deport at a rate of 3 every 10 minutes. At this rate how many buses would depart in one hour.
e-lub [12.9K]
If every 10 minutes 3 buses leave then over a course of 60 minutes (1 hour ) 18 buses would leave 
6 0
3 years ago
Read 2 more answers
What is the answer to 8x-2=-9+7x
Alika [10]

Well I don't know !
Let's get together and figure it out.  Are you with me ?

                 You said that             8x - 2 = -9 + 7x

Add  2  to each side:                  8x      = -7 + 7x

Subtract  7x  from each side:     x        = -7

Now that wasn't so bad, was it ?

5 0
3 years ago
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