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3 years ago

Maya asked 8 students how many courses they have taken so far at her college. Here is the list of answers.

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

4 0

Answer:

50%

Step-by-step explanation:

The question asks who has taken fewer than 19 courses.

So first we look at how many are fewer than 19.

There are 4 that are fewer than 19: 12, 9, 5, 17

So.. 4/8 (8 is the total number of options)

To find the percentage you...

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What is 3/14 minus 3/7 in simplest form

Alex_Xolod [135]

Step 1. Find the Least Common Denominator (LCD) of $\frac{3}{14} , \frac{3}{7}$

Method 1: By Listing MultiplesList out all multiples of each denominator, and find the first common one.

Multiples of 14 : 14,......

Multiples of 7 : 7, 14, ......

Therefore, the LCD is 14.

Method 2: By Prime FactorsList all prime factors of each denominator, and find the union of these primes.

Prime Factors of 14 : 2, 7

Prime Factors of 7 : 7

Therefore, the LCD is $2*7=14$

LCD = 14

Step 2. Make the denominators the same as the LCD

 $\frac{3}{14} - \frac{3*2}{7*2}$

Step 3. Simplify. Denominators are now the same

$\frac{3}{14} - \frac{6}{14}$

Step 4. Join the denominators

$\frac{3-6}{14}$

Step 5. Simplify

 $- \frac{3}{14}$

Done!

Decimal Form If Needed: -0.214286

3 0

3 years ago

Which method can be used to solve 11*13

Tatiana [17]

Calculate both numbers:
1+3=4

When multiplying a number by 11, you add both digits together and place it in between the numbers:

13x11=143

5 0

3 years ago

Read 2 more answers

Undo the subtraction of x-2=6

spayn [35]

Answer:

x = 8

Step-by-step explanation:

I am assuming that you want to solve for x.

Note the equal sign, what you do to one side, you do to the opposite side. Isolate the variable, x. Add 2 to both sides:

x - 2 (+2) = 6 (+2)

x = 6 + 2

x = 8

x = 8 is your answer.

7 0

4 years ago

i need to find the area of a rectangle using the formula A=b*h the height is 810 cm the base is 10 meters...i know i need to con

leva [86]

Answer:

81000 $cm^{2}$ or 8.1 $m^{2}$

Step-by-step explanation:

1m = 100cm

10m = 1000cm

a= b*h

a= 1000cm * 810cm

= 810000 $cm^{2}$

1 $m^{2}$ = 10000 $cm^{2}$

810000 $cm^{2}$ = 8.1 $m^{2}$

7 0

3 years ago

Three equal-sized cardboard boxes are stacked on top of each other. Each box is 56.4 cm in height. What is the combined height o

KATRIN_1 [288]

Answer: 169.2cm

Step-by-step explanation:

From the question, we are informed that three equal-sized cardboard boxes are stacked on top of each other and that each box is 56.4 cm in height.

To get the combined height of the 3 stacked boxes, we multiply 56.4cm by 3. This will be:

= 56.4cm × 3

= 169.2cm

7 0

3 years ago