Answer:
12 wooden rulers
23 plastic rulers
Step-by-step explanation:
Total rulers sold - 35
Total profit - $82
1 wooden ruler - $3
1 plastic ruler - $2
$3 x 12 = $36
$2 x 23 = $46
$46 + $36 = $82
12 + 23 = 35 rulers
Hello <span>keniacastromora! This problem can be setup as a proportion.
We have a ratio of 3/4. The cow's milk is the 3 and the goat milk is the 4. They want to know </span><span>how many IU of vitamin A are in a liter of goat milk. Since we know the ratio is 3/4 and that a liter of cow's milk has 1560 UI we can set this up as a proportion and solve.
</span>
Now solve for x by first cross multiplying 1560 * 4 = <span>6240
</span>
Next divide 6240 by 3 6240 / 3 = <span>2080
</span>So x = 2080 and our proportion looks like the following
So there are 2080 UI of vitamin A in a liter of goat milk when a liter of cow milk has 1560 UI of vitamin A
A. Convert to vertex form:-
= -0.8(x^2 - 4x) + 6
= -0.8 ((x - 2)^2 - 4)) + 6
= -0.8(x - 2)^2 + 9.2
Maximum height of the ball is 9.2 feet Answer
b. horizontal distance at this height = 2 feet. Answer
c. this distance will be the positive root of f(x) = 0
-0.8(x - 2)^2 = -9.2
(x - 2)^2 = 11.5
xi-2 = sqrt 11.5 = 3.39
required distance = 5.39 = 5.5 feet answer
0.2 and 0.20 are two equivalent decimals
So all you have to do is divide 12.5 by 20. So the unit rate is .625