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Citrus2011 [14]
3 years ago
7

What expressions require to rename mixed numbers before you can subtract

Mathematics
1 answer:
wel3 years ago
8 0
When you subtract fractions you have to change the mixed fractions before doing the calculation
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Write an expression for the eighth partial sum of the series using summation notation
balandron [24]

Answer:

option B

Step-by-step explanation:

9/10 + 6/5 + 3/2...........

We find the difference between the terms

\frac{6}{5} - \frac{9}{10}

\frac{12}{10} - \frac{9}{10} = \frac{3}{10}

We will get the same difference when we subtract consecutive terms.

so , d= 3/10, a= 9/10

we find the formula for nth term

a_n = a+(n-1) d

a_n = \frac{9}{10} + (n-1)\frac{3}{10}

a_n = \frac{9}{10} +\frac{3}{10}n-\frac{3}{10}

a_n = \frac{6}{10} +\frac{3}{10}n

a_n = \frac{3}{5} +\frac{3}{10}n

we need to find eighth partial sum so we  take n=1 to 8

sum of 8 terms (\frac{3}{5} +\frac{3}{10}n)

So option B is correct


4 0
3 years ago
Double a number increased by Ten equals twelve express the solution in 3 different ways
Zina [86]
First way: 1 doubled is 1+1, which is 2. 2 increased by 10 equals 12.

Second way: 1 doubled is 1*2, which equals 2. 2 increased by 10 equals 12.

7 0
3 years ago
Which ordered pair is the best estimate for the solution of
devlian [24]

Answer:

(1.5, 2.5) is the best approximate solution.

Step-by-step explanation:

According to the graph, at the point of intersection of these two lines, x is closest to 1.5 and y is simultaneously closest to 2.5.

(1.5, 2.5) is the best approximate solution.

5 0
4 years ago
For a snack, sameer ate a plum with 32 calories and several strawberries with 4 calor each. If the total number of calories in S
solmaris [256]

6 strawberries.

one plum= 32 calories

one strawberry=4 calories

total calories=56

56-32=24

24 calories come from the strawberries

24÷4=6

Therefor 6 strawberries


4 0
3 years ago
PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER
alexdok [17]
The answer is c.) 64
6 0
3 years ago
Read 2 more answers
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