Let's define variables:
x1: gear 1
x2: gear 2
The relationship between gears is:
x1 / x2 = (1 1/2) / (1/2)
Rewriting:
x1 / x2 = (3/2) / (1/2)
x1 / x2 = (3 * (1/2)) / (1/2)
x1 / x2 = 3
Another unit rate is:
x2 / x1 = (1/2) / (1 1/2)
x2 / x1 = (1/2) / (3/2)
x2 / x1 = (1/2) / (3 * (1/2))
x2 / x1 = 1/3
Answer:
two unit rates to represent the gear ratio are:
x1 / x2 = 3
x2 / x1 = 1/3
Answer:
14. 14.86 (simple subtraction)
15. 4 dollars (156/39 = 4)
18. 49 (36,39,44,48,50,50,54,55 so mean of 48 and 50 is 49)
19.14 (3.5/0.25)
20. A(understanding question contex)
25. 3a + 3b or C (add all the a's and b's together)
26. 5 (Divide apples by 3)
28.C(multiply all the sides together)
29. A (12/7 is fraction form of 12 : 7)
30. C (rate is 20 so 6 * 20 = 120)
31. D
Hoped this helped, this took a while to do :)
Look at the factors in the 5 numbers. there are 3 factors, and each
number is the product of 2 of them (or 1 of them, twice). There is one
"pair" missing. Hope this helps!!!
Answer:
x= 4, y=3
Step-by-step explanation:
2x + 3y = 17
3x - 2y = 6
----------
<u>If we double the first and triple the second equation, and add up, we can get rid of y:</u>
- 4x+6y= 34
- +
- 9x - 6y= 18
- -----------------
- 13x= 52
- x= 4
<u>Then it is easy to find the value of y:</u>
<u>Answer is</u>: x= 4, y=3
Answer:
4x+6
Step-by-step explanation:
4(x+1)+2
4*x=4x
4*1=4
4+2=6
4x+6
