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motikmotik
3 years ago
14

What method do you prefer to use when adding or subtracting fractions and mixed numbers? For example, do you find common denomin

ators first, convert fractions into decimals and then back into fractions, or simplify fractions first and then add or subtract them? Explain why you prefer to use this method. Give at least one example of using this method. As you learn new strategies throughout the unit, you may change which method you prefer to use. If that happens, explain why you changed your preferred method
Mathematics
1 answer:
Monica [59]3 years ago
5 0

Answer:

Step 1: Keep the denominator the same.

Step 2: Add or subtract the numerators.

Step 3: If the answer is an improper form, reduce the fraction into a mixed number.

Step-by-step explanation:

\frac{5}{4} +\frac{6}{4} =\frac{5+6}{4} =\frac{11}{4}

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a number is subtracted from 2 and the difference is divided by 3 and the result is 30. whats the variable.
alekssr [168]

92

The equation we have so far would be: (x-2)÷3=30

plug 92 into x.

(92-2)÷3=30

92-2=90

90÷3=30

3 0
4 years ago
Read 2 more answers
Reduce 105 in the ratio 3:5​
Komok [63]

9514 1404 393

Answer:

  39.375 : 65.625

Step-by-step explanation:

The meaning of "reduce" in this context is unclear. We assume you want to divide the quantity 105 into parts that have a ratio of 3 : 5. Then the smaller part will be 3/(3+5) = 3/8 of the total; the larger part will be 5/8 of the total.

  3/8 × 105 = 39 3/8

  5/8 × 105 = 65 5/8

The divided quantities are ...

  39.375 : 65.625

3 0
3 years ago
HI MATHS EXPERTS PLS ANSWER ASAP PLS I AM DESPERATE
katovenus [111]

c. 2310 (1st pic)

circumference of circle = 2πr

44= 2 × 22/7 r

44 × 7 / (2 × 22) = r

7 = r

volume of cylinder = πr^2h

= 22/7 × (7)^2 ×15

= 2310

b. -2/x+3 (2nd pic)

(work attached)

a. 80° (3rd pic)

Total number of degrees is 180

180-(60+40)=80

c. 9 (5th pic)

(27^1/3)^2

3^2

=9

sorry i couldn't solve the 4th pic but I hope this helps!

please mark me brainliest!

3 0
3 years ago
Ivan rented a truck for one day. There was a base fee of $20.95, and there was an additional charge of 98 cents for each mile dr
beks73 [17]

Answer:

222 miles.

Step-by-step explanation:

<u>Lets create an equation to solve this easier.</u>

<u>Let x represent the miles driven in the truck. </u>

Our equation is 238.51=.98x+20.95

All we have to do now is solve for x.

Subtract 20.95 on both sides.

217.56=.98x

Now divide both sides by .98 to isolate the variable.

222=x

<em>Ivan drove the truck 222 miles.</em>

Hope this helps!

3 0
4 years ago
wo neighboring homeowners, , 2, simultaneously choose how many hours to spend maintaining a beautiful lawn. The average benefit
Fantom [35]

To calculate the average benefit of hours we must add all the values then divide by the number of values that we have.

<h3>What is the average?</h3>

Average is a term that refers to a value that represents the mean of a group of values. For example, if my friends and I have a race to run from point A to point B and our times are:

  • 69 seconds.
  • 58 seconds.
  • 45 seconds.
  • 120 seconds.
  • 76 seconds.

The average time of my group of friends would be:

69 + 58 + 45 + 120 + 76 = 368

358 ÷ 73.6 seconds

The average of my group of friends would be 73.6 seconds.

According to the above, to identify the average profit per hour of my neighbors who own their lawns, you must use the same formula to obtain the result.

Note: This question is incomplete because the are some information missing. However I can answer it based on my prior general knowledge.

Learn more about average in: brainly.com/question/897199

5 0
3 years ago
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