3 years ago

Solve for brainliest

Mathematics

1 answer:

viktelen [127]3 years ago

5 0

Answer:

Step-by-step explanation:

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The ratio of rainy days to non rainy days was 2 to 3. How many of the 30 days in April were rainy?

viktelen [127]

20 days were rainy.

2:3=x:30
2/3=x/30
x=20

3 0

3 years ago

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From a group of five boys and seven girls, two boys and three girls will be selected to attend a conference. In

babunello [35]

Step-by-step explanation:

Number of combinations

= 5C2 * 7C3

= 10 * 35

= 350.

Hence there are 350 possible ways.

P.S.

5C2 = 5! / (2!3!) = 120 / (2 * 6) = 10.

7C3 = 7! / (3!4!) = 5040 / (6 * 24) = 35.

3 0

3 years ago

3x^2+5x+25, when x=3

Vaselesa [24]

[ Answer ]

$\boxed{121}$

[ Explanation ]

$3x^{2}$ + 5x + 25

X = 3

Replace 3 For X

$3*3^{2}$ + (5 * 3) + 25

Solve

5 * 3 = 15

3 * 3 = 9

9 * 9 = 81

Insert Numbers

81 + 15 + 25

= 121

$\boxed{[ \ Eclipsed \ ]}$

8 0

4 years ago

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What is the probability of spinning an even number?

Debora [2.8K]

Answer:

3/5

Step-by-step explanation:

there are 6 even numbers and 4 odd so 10 in total which is 6/10 and that simplified is 3/5 PLS give me brainliest i beg

6 0

4 years ago

The sum of 3 numbers is 1305. The first number is 360. The second

Artemon [7]

Answer:

225

Step-by-step explanation:

x + y + z = 1305

x = 360

y = 360×2 = 720

z = 1305 - 360 - 720 = 225

8 0

3 years ago

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