MATHEMATICS MIDDLE SCHOOL

A triangle has side lengths of (6.2p + 4.5q) meters, (3.4p – 0.7r) meters, and (2.9r – 4.1q) meters. Which expression represents the perimeter, in meters, of the triangle?A 9.6p + 0.4q + 2.2r
B 9.6p + 7.4q – 4.8r
C 9.6p – 1.2qr
D 10.7pq + 2.7pr – 1.2qr

Answers

Answer 1
Answer:

Answer:

A

Step-by-step explanation:

THe perimeter is the sum of all the sides.

A triangle has 3 sides and we sum up the expressions to find the expression for perimeter.

Lets do this:

(6.2p + 4.5q)+(3.4p-0.7r)+(2.9r-4.1q)\n=(6.2p+3.4p)+(4.5q-4.1q)+(-0.7r+2.9r)\n=9.6p+0.4q+2.2r

We have added "p"s and "q"s and "r"s, together.

THe answer is Option A

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What is 80% of 35? (EXTRA CHARACTERS)

Answers

80% of 35 is 28 :) hope this helps!
Reason why it's 28:
If you want to find the percentage of a given number, 
you multiply the percentage into the number
35*.8 = 28

45/99 in a decimal form

Answers

the answer is 0.4545454545

The populations of cities A and B are 2.6 * 10^5 and 1,560,000 respectively. the population of city C is twice the population of city Bthe population of city C is how many times the population of city A?

Answers

Answer:

City C is 12 times the population of city A.

Step-by-step explanation:

AI-generated answer

To find out how many times the population of city C is compared to city A, we first need to determine the population of city C.

Given that the population of city B is 1,560,000 and the population of city C is twice the population of city B, we can calculate the population of city C as follows:

Population of city C = 2 * Population of city B

= 2 * 1,560,000

= 3,120,000

Now that we know the population of city C is 3,120,000, we can compare it to the population of city A.

The population of city A is given as 2.6 * 10^5 (which is scientific notation for 2.6 multiplied by 10 raised to the power of 5).

To compare the population of city C to city A, we divide the population of city C by the population of city A:

Population of city C / Population of city A = 3,120,000 / 2.6 * 10^5

To simplify this calculation, we can express both numbers in the same format:

3,120,000 = 3.12 * 10^6 (since we move the decimal point 6 places to the right)

2.6 * 10^5 = 260,000 (as we move the decimal point 5 places to the right)

Now we can calculate:

Population of city C / Population of city A = 3.12 * 10^6 / 260,000

Dividing these two numbers, we get:

Population of city C / Population of city A = 12

Therefore, the population of city C is 12 times the population of city A.

Answer:

City C is 12 times the population of city A.

Step-by-step explanation:

Evaluate b^2 c ^-1 for b = 8 and c = -4
a)-16
b)1/16
c)256

Answers

Ur answer isssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss A - 16

What is the mean of these groups of numbers? 1,1,5,3,6,6

Answers

mean
add up numbers and divide by how many there are
(1+1+5+3+6+6)/7=3 and 2/3
To find the mean, you add all the numbers in the set and then divide by the number of numbers in the set. Here, that's 22 divided by 6, so the answer is (22)/(6) or (11)/(3) = 3.6666...

65% of what number is 39? 65% of what number is 39? A.
25.35







B.
60







C.
166.7







D.
2535

Answers

Change 65% into a decimal by moving the decimal point two places to the left. Then multiply .65 by 39 to get Your answer = A. 25.35 :)
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