Question 22 The densities of three metal alloys, A, B and C, are in the ratio
13:15:21
1 m
of alloy B has a mass of 8600 kg.
Work out the difference between the mass of 5 m3 of alloy A and 3 m? of alloy C.
Give your answer correct to 3 significant figures.

lol we need to see what the question is asking about

step-by-step explanation:

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

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add -60 to 120 which will result in : 2x+3y=180

then subtract 2x: 3y=-2x+180

lastly, divide by 2: y= -2/3x+60

hope this is the answer you're looking for: )