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melamori03 [73]
3 years ago
8

What is y^2-6y=0 without using quadratic formula?

Mathematics
1 answer:
boyakko [2]3 years ago
3 0

y^2-6y=0\\ \\ y(y-6)=0\\ \\ y=0...and...(y-6)=0\\ \\ y=0...and...y=6

Since both y squared and 6y have a common factor of y, can put that to the side and divide both the y squared and 6y to get the second step of the work shown above. Separate both the y on the outside of the parentheses and the numbers within the parentheses and set them both equal to 0 as shown in step 3 of the work shown above. Finally solve for y as you would normally. Those two number in step 4 should be your final answer.

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A shop sells apples and oranges in the ratio 5:2.
atroni [7]
Found a great explanation + 1105p = £11.05

5 0
2 years ago
Carol bought 24 stamps for $6, and Charles paid $13 for 52 stamps. If the amount paid for the stamps is proportional to the numb
Vera_Pavlovna [14]

Answer:

Yes

Step-by-step explanation:

$24 divided by 6 equals 4

$52 divided by 13 equals 4

4 0
2 years ago
Read 2 more answers
If you paid $1600 in property taxes on a house appraised at $80,000 what is the property tax rate in your neighborhood?
bazaltina [42]

Answer: 2%

Step-by-step explanation:

1600/80000. Simplifying by 100:

16/800. Simplifying by 8, comes to:

2/100 = 2%

7 0
3 years ago
A rectangular prism has a base area of 56 square feet and a volume of 840 cubic feet. The length of the base is longer than the
katovenus [111]
The answer is 8 ft.

The base area of rectangular prism is: A = l * w = 56 ft²
<span>The length of the base is longer than the width: l > w

The volume of the prism is: V = l * w * h = 840 ft</span>³
<span>The sum of the length and width of the base is equal to the height of the pyramid: l + w = h

So:
</span>l * w = 56
l * w * h = 840
___
56 * h = 840
h = 840 / 56
h = 15 ft

Now, we know that
l + w = 15         ⇒ w = 15 - l
l * w = 56
___
l * (15 - l) = 56
15l - l² = 56
0 = l² - 15l + 56

Or: l² - 15l + 56 = 0

Let's solve the quadratic function:
l = (-b +/-√(b² - 4ac)/(2a)
  = (15 +/-√(-15)² - 4 * 1 * 56))/(2*1)
  = (15 +/- √(225 - 224))/2
  = (15 +/- √1)/2
  = (15 +/-1)/2
 
l = (15+1)/2 = 16/2 = 8
or
l = (15-1)/2 = 14/2 = 7

If l = 8, then w = 15 - 8 = 7.    So, l > w
If l = 7, then w = 15 - 7 = 8.     So, l < w

Therefore, l = 8 ft.
6 0
3 years ago
Turn 7/16 into a percent
kramer
To do this first we will take the fraction and turn it into decimal form. To do this we will divide the numerator and the denominator. 

7 ÷ 16 = <span>0.4375

Now to take it to percent form we will multiply by 100.

0.4375 </span>× 100 = 43.75%

So, 7/16 turned into a percentage would be 43.75%

Hope I helped ya!! 
5 0
3 years ago
Read 2 more answers
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