Answer: 9
Step-by-step explanation:
We know that he can walk one mile in 1/3 of an hour. We can divide 3 by 1/3.
3/(1/3) When dividing by a fraction, we multiply its reciprocal instead.
3*3=9. This means that he can walk 9 miles in 3 hours.
ΔACB and ΔMNB are similar. Therefore the corresponding sides are in proportion:
Substitute:
Ni : Zn: Cu = 7:2:9 =7x : 2x : 9x
7x+2x+9x = 3.8
18x=3.8
x=3.8/18=1.9/9≈0.21
Ni: 7x=7*0.21=1.47 ≈1.5 kg
Zn: 2x=2*0.21=0.42≈0.4 kg
Cu: 9x=9*0.21=1.89 ≈1.9 kg
Check 1.5+0.4+1.9 =3.8 True
The correct answer for the question that is being presented above is this one: "c. translate circle J by (x-a, y-b) and dilate by a factor of t/s." Circle J is located in the first quadrant with center (a, b) and radius s. Felipe transforms Circle J to prove that it is similar to any circle centered <span>at the origin with radius r.</span>
(1,1) because x + 2y <4
=1 + 2(1)
= 3 which is less than 4
