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rusak2 [61]
3 years ago
6

Find two consecutive odd integers whose sum is 16​

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
4 0

Answer:

  7, 9

Step-by-step explanation:

The average of the two is the even integer between them:

  average = sum/2 = 16/2 = 8

The two odd integers are 7 and 9.

_____

In this case, the divisor for the average is 2, because there are 2 integers in the sum.

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In 1975, the population of Hobart was 217135. In 1985 the population was 231135. What was the population increase from 1975 1985
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Answer:

14000

Step-by-step explanation:

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3 years ago
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Two solutions of different concentrations of acid are mixed creating 40 mL of a solution that is 32% acid. One-quarter of the so
Georgia [21]
In order to construct this equation, we will use the variables:
V to represent mixture volume (40 ml)
C to represent mixture concentration (0.32)
v₁ to represent volume of first solution (40 / 4 = 10 ml)
c₁ to represent concentration of first solution (0.2)
v₂ to represent the volume of the second solution (40 * 3/4 = 30 ml)
c₂ to represent the concentration of the second solution 


We know that the total amount of substance, product of the volume and concentration, in the final solution is equal to the individual amounts in the two given solutions. Thus:
VC = v₁c₁ +  v₂c₂
40(0.32) = 10(0.2) + 30c
6 0
3 years ago
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Unit 2
34kurt

Answer:

A 21 mm

Step-by-step explanation:

u have to divided and then subtract

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3 years ago
How many 3 digit palindromes are divisible by 9?
ludmilkaskok [199]

Interesting problem.

A palindrome is a number which is identical when read/interpreted left-to-right or right-to-left.   For example, 14241 is a palindrome, so is 444444.


A three digit palindrome must be made up of two distinct digits only, one for the first and last digits, and one for the middle, for example, 424, or 515, etc.


For a number to be divisible by 9, the sum of the digits must add up to a multiple of 9, such as 0, 9, 18, 27, etc.


We can now form a table of the possible 3-digit palindromes divisible by 9, starting with the first/last digits (=A), and finding the middle digit (=B).  The number is therefore represented by the pattern ABA.

For example, when A=1, we have the number 1B1.  For the number to be divisible by 9, B=7 so that sum=1+7+1=9, which is divisible by 9.

For each value of A (from 1 to 9) we can only find one value of B that makes the number divisible by 9.   Thus we can only find nine such numbers, with A equal to 1 to 9.

Here's a list of the numbers

A   B   number

1    7    171

2   5    252

3   3    333

4   1     414

5   8    585

6   6    666

7   4    747

8   2   828

9   0   909

3 0
3 years ago
Manny ordered 16 skateboard wheels. If he sold 4 wheels to Brad, how many skate boards can he put wheels on if each board 4 whee
alexgriva [62]
It would be 3 cuz 16-4 =12  divide by 4 is 3
8 0
3 years ago
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