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guajiro [1.7K]
4 years ago
10

(-3 2/3) + 2 5/8 Find the Answer!! Show your work!!

Mathematics
1 answer:
Elenna [48]4 years ago
8 0

Conversion a mixed number 2 2

3

to a improper fraction: 2 2/3 = 2 2

3

= 2 · 3 + 2

3

= 6 + 2

3

= 8

3

To find new numerator:

a) Multiply the whole number 2 by the denominator 3. Whole number 2 equally 2 * 3

3

= 6

3

b) Add the answer from previous step 6 to the numerator 2. New numerator is 6 + 2 = 8

c) Write previous answer (new numerator 8) over the denominator 3.

Two and two thirds is eight thirds

Divide: 5

8

: 8

3

= 5

8

· 3

8

= 5 · 3

8 · 8

= 15

64

Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 8

3

is 3

8

) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step the fraction result cannot be further simplified by cancelling.

In words - five eighths divided by eight thirds = fifteen sixty-fourths.

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Which expression has the greatest value |-21|, |14|, |30|, |-45|
tresset_1 [31]

Answer:

|-45|

Step-by-step explanation:

In mathematics, the absolute value of a real number is the numeric value of the  number, regardless the sign, either this is positive or negative.

The absolute value function can be definied as:

  • |a|=a si a ≥0
  • |a|=-a si a <0

Using this definition, we have:

|-21| = -(-21) = 21

|14| = 14

|30| = 30

|-45| = -(-45) = 45

Therefore, the expression |-45| has the greatest value.

3 0
3 years ago
An investment of 8,500 has an annual interest rate of 6.6%...... (Continues in screenshot) (please explain)
Sergio [31]

Answer:

C)  A = 8500(1.0165)^16

Step-by-step explanation:

A = P(1 + r/n)^nt  where 'n' is # times compounded and 't' is time in years

A = 8500(1 + (.066/4))^4·4

A = 8500(1 + 0.0165)^16

5 0
3 years ago
Can anyone help me 4n- 6 ( 7n-4) = 328
krek1111 [17]

Answer:

n = 7.94

Step-by-step explanation:


5 0
3 years ago
Box A contains only 20-cent coins and Box B contains only 50-cent coins. The number of coins in Box A is twice the number of coi
Sveta_85 [38]

Answer: There should be 16, 20 cent coins

Step-by-step explanation:

First we have to do 1.60 x 2 which equals 3.2

Then we divided by 0.20 because the equals the 20 cent coins

We get 16

We can check our work by 0.20 x 16 and that gives us 3.2

I hope this helps!

3 0
2 years ago
Write at least two examples that illustrates why logb (x+y) =/= logb(x) + logb(y).
Eddi Din [679]

The examples that illustrates why logb (x+y) =/= logb(x) + logb(y) are:

Log3_2 + Log  6_2\\Log12_2 + Log 4_2\\Log4_2 + Log 4_2

<h3>Calculations and Parameters</h3>

Based on the fact that they are of the same base,

Mathematical operations can be done on them as shown above.

Thus, Log3_2 + Log  6_2\\Log12_2 + Log 4_2\\Log4_2 + Log 4_2

This is because they are of the same base and this is why mathematical operations can be performed on them.

Read more about logarithm here:

brainly.com/question/25710806

#SPJ1

4 0
1 year ago
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