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aniked [119]
2 years ago
10

It rained 18 days during the month of April what percentage of day did it not rain during the month of April

Mathematics
1 answer:
kotykmax [81]2 years ago
6 0
There are 30 days in April.

If 18 days had rain, it means 12 didn't.

18/30=x/100

Make sure both fractions can be made into fractions with a denominator of 100:

180/300=x/100

Divide 180/300 by 3:

60/100=x/100

This shows that the 18 days that did rain take up 60% of the whole month.

So then the remaining 12 days that didn't have rain must take up 40% of the month.

Solution:
40% of the days did not have rain during the month of April
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What two numbers multiple to -3468 and adds to 24
Alex777 [14]

Answer:

72.1 and -48.1

Step-by-step explanation:

I set up the equations x + y = 24 and x*y=-3468. Then I substituted for y and used the quadratic formula to come to two numbers rounded to about 72.1 and -48.1. Hope that helps :)

4 0
3 years ago
Write the quadratic function in vertex form, then identify the vertex
34kurt

Answer:

vertex = (- 10, - 10 )

Step-by-step explanation:

The equation of a quadratic in vertex form is

y = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier

To obtain this form use the method of completing the square.

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with (h, k ) = (- 10, - 10 )

8 0
2 years ago
Identify which number is between -3.5 and -3.7?<br>A.-3.74<br>B.-3.69<br>C.-3.12<br>D.-3.18​
Degger [83]
D is the answer because it’s between -3.5 and -3.7
4 0
3 years ago
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vlada-n [284]
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Determine whether (3, 2) and (2, - 1) are solutions to the equation – 3x + y = - 7.
Leona [35]

Answer:

D

Step-by-step explanation:

plug in (3,2) to see if it's a solution:

A) does -3(3) + 2 equal -7?    yes

B) since 'A' is a solution then 'B' cannot be the answer

C) since (3,2) is a solution then 'C' cannot be the answer

plug in (2,-1) to see if it's a solution:

plug in (2,-1) to see if it's a solution:

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only (3,2) is a solution so the answer is D

8 0
2 years ago
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