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Readme [11.4K]
3 years ago
8

Twenty-one is 25% of what number?

Mathematics
2 answers:
choli [55]3 years ago
8 0

The answer is 84

Because 1/4 (25/100) of 84 would be 21

I hope this helps!!! :)

ivolga24 [154]3 years ago
5 0
The answer is 84 because 21 times 4 is 84 my answer is late someone answer it already lol
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Location Selection Math Quiz
Eddi Din [679]
Take 4,000 times 12 to get 48,000. that’s how much A costs.

B is a little harder. you have to take (2,300+300)x12+(4*250). this equals $32,100

the correct answer would be B.
8 0
3 years ago
What shape is the base? What is the area of the<br> base (B)?
VladimirAG [237]

Answer:

rectangular; 32 in²

Step-by-step explanation:

The base is rectangular, because 1 set of sides is longer than the other.

To find the area of the base, multiply 4 by 8 to get 32 in².

6 0
3 years ago
25. Michael is studying population changes in two
g100num [7]

Answer: Average rates of change for Bird A is 0.045 and for Bird B is 3.816.

Step-by-step explanation: Through its graph, a function can be analyzed and be identified its attributes. Average Rate of Change is the ratio of change in the function values to the change of x-value, i.e., it is the slope of the function in a specific interval of x. With the Average it is possible to compare two function.

<u>Average Rate of Change</u>

<em><u>Bird A</u></em>:

For the interval [0,18]:

x₁ = 0 f(0) = 8.3

x₂ = 18 f(18) = 9.1

Average = \frac{f(18) - f(0)}{x_{2} - x_{1} }

Average = \frac{9.1 - 8.3}{18 - 0}

Average = 0.045

<em><u>Bird B</u></em>: y = 3.6(1.06)x

For the interval [0,18]:

x₁ = 0 y = 3.6(1.06)0 = 0

x₂ = 18 y = 3.6(1.06)18 = 68.7

Average = \frac{f(18) - f(0)}{x_{2} - x_{1} }

Average = \frac{68.7 - 0}{18 - 0}

Average = 3.816

The Average Rate for Change for Bird A is 0.045 and for Bird B is 3.816. This means that the population of Bird B increase in rate faster than the population of Bird A.

4 0
2 years ago
Help pls<br> I would use 2 for this right
kipiarov [429]
<h2>Answer:</h2>

Step-by-step explanation:

yeah

8 0
1 year ago
How many planes exist that pass through points a,b ,and c
shusha [124]

1 because 3 points determine a plane.

6 0
3 years ago
Read 2 more answers
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