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Rudik [331]
3 years ago
5

One number is 8 times a first number. A third number is 100 more than the first number. If the sum of the three is 690, find the

numbers.
Mathematics
1 answer:
mezya [45]3 years ago
6 0
<h3>Given</h3>

Three numbers are n, 8n, and (100+n).

Their total is 690.

<h3>Find</h3>

the three numbers

<h3>Solution</h3>

n + 8n + (n+100) = 690

10n + 100 = 690 . . . . . . . simplify

10n = 590 . . . . . . . . . . . . subtract 100

n = 59

8n = 472

n +100 = 159

The three numbers are 59, 472, and 159.

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K is the midpoint of a line segment JL. If JK= 6x + 7 and KL = 9x-2, find the length of JL
Korvikt [17]

Answer:

x = 3

Step-by-step explanation:

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Evaluate each expression x=-3,y=6,z=-4what is x+y+(-1)
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substitute the numbers.

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8 0
2 years ago
PLEASE HELP!!!!!!!!!!
Oksanka [162]

Answer:

B

Step-by-step explanation:

Data set D does not contain the value 128, which is the median value.

Data set C does not contain the outlier value 91.

Data set A contains value 168, which does not show up on the plot.

The only remaining choice is B.

_____

In order, the data values of set B are ...

... 91, 114, 120, 126, 128, 128 134, 136, 139, 142, 152

The median value of these 11 is the 6th one: 128. The median values of the remaining two sets of 5 are 120 and 139, making these values the quartiles at the ends of the box. The value 91 is more than 1.5 times the IQR (19) below the 1st quartile, so is considered an outlier. (The cutoff is 120-1.5·19=91.5.)

6 0
3 years ago
Read 2 more answers
Replace ? with =, &gt;, or &lt; to make the statement true. 12 ÷ 4 + 13 ? 2 + 22 ÷ 2
bogdanovich [222]

Answer:

>

Step-by-step explanation:

On the left side, we divide first: 12/4=3

On the left side, we get 3+13, which equals 16.

On the right side, we also divide first: 22/2=11

On the right side, we get 11+2, which equals 13.

We know that 16 is larger than 13, so  

12 ÷ 4 + 13 > 2 + 22 ÷ 2

Hope this helps!

8 0
3 years ago
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