Answer:
The amount of marble will decrease as we make more chess pieces.
Step-by-step explanation:
An artist is carving chess pieces from marble. He has already carved p chess pieces and has s pounds of marble remaining.
We have to find out what happens to the remaining marble as chess pieces are being carved.
We are making chess pieces from the marble that is remaining , hence the amount of marble will definitely decrease.
As we go on making chess pieces, the marble will finish at a point of time.
Answer:
Hotdogs cost $2 and potato crisps $0.75.
Step-by-step explanation:
Let the hotdogs cost $h and the crisps $p
5h + 2p = 11.5
3h + 5p = 9.75
Multiply the first equation by -5 and the second by 2:
-25h - 10p = -57.5
6h + 10p = 19.5 Adding these 2 equations:
-19h = -38
h = $2.
Substitute h = 2 into the first equation:
5h + 2p = 11.5
10 + 2p = 11.5
2p = 1.5
p = $0.75.
Answer:
The sale price of the shirt is 45% of the original price.
Step-by-step explanation:
0 = x – 3 – 5x2
0 = 3x – 5 – x2
0 = –3x + 5 – x2
Answer:
Option (a) is correct.
For given values a = 1 , b = -3 , c = -5 the quadratic equation is
Step-by-step explanation:
Given : a = 1 , b = -3 , c = -5
We have to write the quadratic equation having a = 1 , b = -3 , c = -5 and choose the correct option.
The standard form of quadratic equation is , where a, b, c are constant integers.
Given : a = 1 , b = -3 , c = -5
Then Substitute, we get,
Thus, the obtained quadratic equation is same as option (a)
Thus, For given values a = 1 , b = -3 , c = -5 the quadratic equation is
Answer:
a
Step-by-step explanation:
Using the quadratic equation h = -16t² + 264 which represents the object's height after time, we find that it will take 4 seconds for the object to reach 8 feet above the valley floor.
In this case, you're asked to find out how much time it takes for an object dropped from an observation deck to drop to a point 8 feet above the valley floor. The height h, in feet, after time t, in seconds, is represented by the quadratic equation h = -16t² + 264. Set the equation equal to desired height, which is 8 feet in this case. So, you have -16t² + 264 = 8. Rearranging, you get -16t² = 8 - 264, or -16t² = -256. Divide by -16 yields, t² = 16. The principal square root of 16 is t = 4.
Therefore, it will take 4 seconds for the object to be 8 feet above the valley floor.
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