Answer:
40 bottles of juice
60 bottles of water
Step-by-step explanation:
let w represent water, let j represent juice. set up a system of equations:
w+2j=140
w+j=100
isolate the w by itself on the bottom equation:
w=100-j
solve the top equation by substitution, substituting 100-j for w:
w+2j=140
100-j+2j=140
100+j=140
j=40
this means that they bought 40 bottles of juice.
to find the amount of bottles of water the bought, substitute 40 for j in either of the equations (i did it in the bottom one, because it's easier):
w=100-j
w=100-40
w=60
so, they bought 60 bottles of water.
For A. You didn't gave the picture of the problem but I will attach it later with the picture of B. We are looking for the perimeter, the answer is <span>2 + 12 + 2 + 3 + 5 + 3 + 2 + 9 + 7 + 3 = 48 cm.
For B. The radius is 4 in. So the formula is given, 2pi r = 2(pi)(4 in) = 25.1327412 in is the circumference of a circle which only signifies three fourths.</span>
Answer: I think C
Step-by-step explanation:
h(t) = -16t^2 + vt + 5
h(3) = 131 ft
h(3) = -16(3)^2 + 3v + 5 = 131
3v = 270
v = 90 ft/s