Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
<h2>The maximum height is 20.</h2>
Step-by-step explanation:
The height of the ball is given by .
Differentiating the above equation, with respect to t, we get .
At the maximum height the derivative of the function needs to be 0.
Hence, gives .
The maximum height is
2500 kg x 4 weeks =10000kg
<span>1 ton = 907.2 kg
??=10000kg
1 x 10000 divided by 907.2
answer=11 tones </span>
11 kilograms of the same dog food costs $69.85.
Step-by-step explanation:
Step 1:
Paris buys 18 kg of dog food for $114.30. The food can be purchased in 1 kg bags.
If she bought the 18 kg of dog food with 1 kg bags, she would have had to buy 18 such bags.
So we need to calculate the cost of a 1 kg bag.
If 18 bags cost $114.30 we divide it by 18 to calculate the cost of 1kg.
The cost of a 1 kg bad
So a 1 kg bag of dog food costs $6.35.
Step 2:
To calculate the cost of 11 kg of the same dog food, we multiply the cost of a single bag with the number of bags.
If she were to buy the 11 kg through 1 kg bags, she would need to buy 11 such bags.
The cost of 11 kg of dog food
So 11 kg of dog food would cost $69.85.
Answer:
x = 31 and x = 15
Step-by-step explanation:
(a)
(3x + 31) and (2x - 6) are a linear pair and sum to 180° , then
3x + 31 + 2x - 6 = 180
5x + 25 = 180 ( subtract 25 from both sides )
5x = 155 ( divide both sides by 5 )
x = 31
(b)
3x and (4x - 15) form a right angle and sum to 90° , then
3x + 4x - 15 = 90
7x - 15 = 90 ( add 15 to both sides )
7x = 105 ( divide both sides by 7 )
x = 15