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sergey [27]
3 years ago
14

Plzzz help I would really appreciate it !!!!

Mathematics
1 answer:
Elena L [17]3 years ago
5 0
Wait I got this too lol I’m looking for the answer too
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A piece of a chain's length and weight are in proportion. If 320 cm of chain weighs 8 kg, then
Dafna11 [192]

Answer:

B. 80 cm of chain weighs 2 kg.

Step-by-step explanation:

In order to choose the correct answer, we need to define the comparative relation between the length and weight of the chain. We will do this by performing the simple operation of division.

It is easier to divide the larger number by the smaller and that is what we will show here (although <em>you can do as you wish and still get the same result</em> - it's math!):

320 ÷ 8 = 40

The result we got is 40. This means that <u>the length of the chain is equal to the value of forty of its weights!</u> And this will be the operation we will perform in order to determine the right answer:

A) Does 2 (kg) multiplied by 40 equal 40 (cm)? No, therefore, it is incorrect.

B) Does 2 (kg) multiplied by 40 equal 80 (cm)? <u>Yes, this answer is correct!</u>

Just in case, we will perform this action with the rest of the possible choices:

C) 4 kg × 40 = 160 and NOT 80 cm.

D) 2 kg × 40 = 80 and NOT 160 cm.

5 0
3 years ago
Daniella is solving 8/9 divided by 4 find her mistake and correct it
AysviL [449]
8/9 * 1/4 = 8/36 division of fractions is equal to the multiplication of the reciprocal
4 0
3 years ago
In a rectangle, how do you determine what is length and what is width?
Ann [662]
Going side to side(horizontal) is always length and going up and down (vertical) width
6 0
3 years ago
A rectangle has a volume of 912 cubic meters. It has a length of 19 meters and a width of 12 meters. Which equation can be used
Nimfa-mama [501]
The answer would be B because LWH=V, so taking the information given, L(19) times W(12) would equal 228 and 228 times the H would give us volume so B
Hope this helped ;)
3 0
3 years ago
The circumference of a circular rug is 24.8 meters. What is the area of the rug? Use 3.1 for pi
pochemuha

Answer:

49.6 square meters

Step-by-step explanation:

first, circumference is 2*pi*r, so we want to find r.  so we take 2*pi*r=24.8 and solve for r which is 4.

Now, area is pi*r^2 so pi*4^2 = pi*16 = 49.6

7 0
3 years ago
Read 2 more answers
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