1. A machine can produce 5 meter of fabric in 2 minutes. How many meters of fabric can it produce in half an hour? *
a. 75
b. 80
c. 85
d. 70
2.Find the missing value: 9:2 = 18: ______. *
a. 4
b. 6
c. 10
d. 12
3.It is a proportion in which an increase in one of the values results in an increase in the other value. *
a. equivalent ratio
b. direct proportion
c. proportion
d. means
a. 75
b. 80
c. 85
d. 70
2.Find the missing value: 9:2 = 18: ______. *
a. 4
b. 6
c. 10
d. 12
3.It is a proportion in which an increase in one of the values results in an increase in the other value. *
a. equivalent ratio
b. direct proportion
c. proportion
d. means
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RATIO AND PROPORTION
These involves ratio and proportion. The answers are these: 1) a; 2) a; and 3) b.
In number 1, let x be the unknown or the length of fabric in meters. The ratio can be expressed in 5:2 = x:30. Half an hour is 30 minutes. It should be same in units. By cross-multiplication, x = 15(5) = 75 meters. For number 2, by cross-multiplication, the ratio is 9:2 = 18:x where x is the unknown. 9 times x is equal to 18 times 2. x will be 36 divided by 9 which is 4. For number 3, direct proportional is the proportion that as the one quantity increases, the other quantity also increases.
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Answer:
1. a. 75
2. a. 4
3. b. direct proportion (?)
Step-by-step explanation:
1. Half an hour= 30 minutes
30 divide 2 = 15
15 minutes x 5 meters= 75
2. 9x2=18
2x2=4
(multiply 9 and 2 to 2)