The number of blue balls that are needed to balance four green, two yellow and two white balls is 16 blue balls.
<h3>Numbers of blue balls needed</h3>
Green(g)
Blue (b)
Yellow (y)
White (w)
First step is to formula an equation
3g=6b
g=2b
2y=5b
y=5/2b
4w=6b
w=3/2b
Second step is to substitute
4g+2y+2w
=4(2b)+2(5/2b)+2(3/2b)
=8b+5b+3b
=16b
Therefore 16 blue balls are needed.
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Answer:
The height of the house at which the ladder reach is 9.15 foot
Step-by-step explanation:
Given as :
The length of the ladder = l = 10 foot
Let The height of the house = h foot
The measure of bottom of ladder from bottom of house = 4 foot
Now from figure
<u>The figure is of right angled triangle</u>
So,
Hypotenuse² = perpendicular² + base²
Or, OB² = AB² + OA²
Or, AB² = OB² - OA²
Or, h² = (10)² - (4)²
Or, h² = 100 - 16
Or, h² = 84
∴ h =
I.e h = 9.15 foot
So,The height of the house = h = 9.15 foot
Hence, The height of the house at which the ladder reach is 9.15 foot Answer
You can find the rate of change by taking it's derivative.
Here is the solution of the given problem above:
Given: appliance A, B and C: 1 7/8 watts x 3 = 45/8 watts
appliance D : 4 3/4 watts
appliance E : 4 3/4 watts
?: total power used by these appliances
In order to know the total, we just have to add the number of watts.
So we add 45/8 watts plus 38/4 watts. The common denominator for these two fractions is 32. Therefore, the final answer would be 15 4/32 or 15 1/8 watts. The correct answer would be the last option. Hope this answer helps.
Answer:
Step-by-step explanation:
You are going to divide both sides by 5 so you can get u by itself