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SCORPION-xisa [38]
2 years ago
15

Please answer me as soon as possible

Mathematics
1 answer:
adell [148]2 years ago
8 0

Answer:????

Step-by-step explanation:

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There were 60 ducks living in a pond. If the number living at the pond increased by 30%, how many ducks now live at the pond?
timama [110]

Answer:

78

Step-by-step explanation:

You take the original total: 60, and multiply it by 30 to get 1,800. You then divide 1,800 by 100 to get 18. 18 is your 30%. Now, you add the 30% to 60 getting your total number of ducks: 78.

The equation version:

\frac{a}{60} = \frac{30}{100}

It is just proportions.

3 0
2 years ago
The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr^2. Find the instantaneous rate of change of the surface area
8090 [49]
Instantaneous rate of change = S'(r) = 8πr
S'(8) = 8π(8) = 64π

Therefore, the instantaneoud rate of change of the <span>surface area with respect to the radius r at r = 8</span>  is 64π
7 0
3 years ago
Please help me! II'll give you brainliest!
sweet [91]

Answer:

x=7

Step-by-step explanation:

4x-12=16

4x=28

x=7

5 0
3 years ago
Helpp with this problem please I’ll give brainliest
Sindrei [870]

Answer:

2

Step-by-step explanation:

If p = 5 and q = 1, the equation would look like

2 - (1 - 5/5)

2 - (1 - 1)   [5/5 is a giant 1]

2 - (0)

2

7 0
2 years ago
A toy cost 45 dollars but it is 25off but you have to play 7.25 of tax
const2013 [10]
41.00
25% off $45 is 33.75
You then add 7.25 to 33.75 which is $41
5 0
3 years ago
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