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lesya [120]
2 years ago
9

What’s the average of 3, 6, 9, 12, and 15

Mathematics
2 answers:
Aloiza [94]2 years ago
8 0
3+6+9+12+15/5= 45/5=9
the average of the numbers is 9
Kazeer [188]2 years ago
6 0

The answer is 68 because u add the number and then divide it by 12

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He uses a scale of 0.5 centimeter to 1 inch to draw the flag. The length of the scale drawing is 2.5 centimeters, and its width
chubhunter [2.5K]

Answer:

Perimeter = 28.8 inch

Step-by-step explanation:

Step 1: Change given centimeters into inches according to the scale

2.5 / .5 = 5 <--- length in inches

4.7 / .5 = 9.4 <--- width in inches

^^^This is the same thing as multiplying 2.5 cm and 4.7 cm by two. You could also reword the scale to be 1 cm = 2 inch if it makes more sense for you

Step 2: Find the perimeter using the formula: P = 2L + 2W

2 (5) + 2(9.4)

10 + 18.8

5 0
3 years ago
.3 3. True or False? For any integer m, 2m(3m + 2) is divisible by 4. Explain to get credit.
Sav [38]

Answer with explanation:

We have to prove that, For any integer m, 2 m×(3 m + 2) is divisible by 4.

We will prove this result with the help of Mathematical Induction.

⇒For Positive Integers

For, m=1

L HS=2×1×(3×1+2)

      =2×(5)

       =10

It is not divisible by 4.

⇒For Negative Integers

For, m= -1

L HS=2×(-1)×[3×(-1)+2]

      =-2×(-3+2)

       = (-2)× (-1)

       =2

It is not divisible by 4.

False Statement.

4 0
3 years ago
A swimmer can do 4 laps in 2 minutes and 30 seconds how long does it take him to do one lap​
Shkiper50 [21]

Answer:

it will take 1 min 30 second to do one lap

Step-by-step explanation:

plz mark me as brainlist

3 0
2 years ago
Read 2 more answers
A parallelogram has an area of 300 square kilometers and a height of 20 kilometers. What is the length of the base?
Neko [114]

Answer: the length of the base is 15 kilometers.

Step-by-step explanation:

formula : Area of parrallelogram  = Length of base x height

Given: Area of parallelogram = 300 square kilometers

height = 20 kilometers

Substituting values in the formula , we get

300 = Length of base x 20

Length of base  = \frac{300}{20}

= 15 kilometers

Hence, the length of the base is 15 kilometers.

4 0
2 years ago
Convert y+7=4(x-3) standard form
True [87]

Answer:

-4x+y = -5

Step-by-step explanation:

Y+7=4(x-3)

Y+7=4x-12

+7. +7

Y=4x-5

-4x+y=-5

7 0
3 years ago
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