Hi there!
Find the volume of a sphere using the following equation:
V = 4/3πr³
Substitute in the given radius:
V = 4/3π(1)³
V = 4/3π or ≈ 4.19 units³
__% of 4 is 7 Please help
2 answers:
Answer:
175%
Step-by-step explanation:
1. To find how much a percent of a number is, we'd just have to multiply the percent by the number. However, in this case, we're missing the percentage.
2. To find that percentage, we can write an equation of because "of 4" means to multiply by 4, and "is 7" means that the product is 7.
3. Now, let's solve our equation.
Step 1: Simplify both sides of the equation.
Step 2: Multiply both sides by 25.
Step 3: Check to see if solution is correct.
Therefore, the answer is 175%.
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First, you have to find out the values of the length and width.
Let l = length and w = width.
Set up your equation for area: l * w = 80
Set up your equation for perimeter: 2l + 2w = 36
We can use substitution for this problem, so find out the value of l or w. In this case, I will use the first equation to find out the value of l.
(Divide w on both sides) l = 80 / w
Since I know that l = 80 / w, I can substitute it into the second equation.
2l + 2w = 36, and l = 80 / w
= 2 (80/w) + 2w = 36
Simplify the equation.
= 160/w + 2w = 36
Get rid of the w in the denominator by multiplying the entire equation by w.
= ( 160/w + 2w = 36 ) * w
= 160 + = 36w
= 2 ( w - 8 ) ( w - 10 )
The solutions for width (w) is 8 or 10. Then, you can use both 8 and 10 as your length and width, either or is fine. Multiply by 4 for each of those values and you get 8 x 4 = 32 and 10 x 4 = 40. The new perimeter would be 2(32) + 2(40) =
a. 144 cm
Hope this helped you! Let me know if there are any confusions :)
67% of final price is $67.
Step-by-step explanation:
Given,
Number of drinks Ben has = 50
Amount paid for each drink = $2
Amount paid for 50 drinks = 50*2
Amount paid for 50 drinks = final price = $100
67% of final price =
67% of final price =
67% of final price = $67
67% of final price is $67.
Keywords: multiplication, percentage
Learn more about percentages at:
#LearnwithBrainly