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prisoha [69]
3 years ago
10

What is the sum of 1/4+1/10

Mathematics
2 answers:
balu736 [363]3 years ago
7 0

Answer:

7/20

Step-by-step explanation:

1/4+1/10

We need to get a common denominator of 20

1/4 *5/5 = 5/20

1/10 *2/2 = 2/20

5/20 + 2/20 = 7/20

m_a_m_a [10]3 years ago
6 0

Answer:

7/20

Step-by-step explanation:

First, we need to find a common denominator.

The easiest way to do this is to look at the factors of each number:

4: 1, 2, 4

10:1, 2, 5, 10

Therefore, we can conclude that 20 would be a good denominator.

\frac{1}{4} = \frac{5}{20}

\frac{1}{10} = \frac{2}{20}

5 + 2 = 7.

Thus, \frac{7}{20} is our final answer.

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The simplest form is 15 dies this help
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An urn contains 5 red balls and 2 green balls. Two balls are drawn one after the other. What is the probability that the second
AleksAgata [21]

Answer:

<em>The probability that the second ball is red is 71%</em>

Step-by-step explanation:

<u>Probabilities</u>

We know there are 5 red balls and 2 green balls. Let's analyze what can happen when two balls are drawn in sequence (no reposition).

The first ball can be red (R) or green (G). The probability that it's red is computed by

\displaystyle P(R)=\frac{5}{7}

The probability is's green is computed by

\displaystyle P(G)=\frac{2}{7}

If we have drawn a red ball, there are only 4 of them out of 6 in the urn, so the probability to draw a second red ball is

\displaystyle P(RR)=\frac{5}{7}\cdot \frac{4}{6}=\frac{10}{21}

If we have drawn a green ball, there are still 5 red balls out of 6 in the urn, so the probability to draw a red ball now is

\displaystyle P(GR)=\frac{2}{7}\cdot \frac{5}{6}=\frac{5}{21}

The total probability of the second ball being red is

\displaystyle P(XR)=\frac{10}{21}+\frac{5}{21}=\frac{5}{7}=0.71

The probability that the second ball is red is 71%

7 0
3 years ago
carol is excited to get a new kitten from the animal shelter. the kitten had an $299 adoption fee. carol had $50 off coupon for
Molodets [167]

Answer:

1 month

Step-by-step explanation:

249 is the amount she spends for buying the kitten, (299-50=249) which she only has to pay once.

20 is the amount she has to spend every month, the rate of change.

The problem can be modeled with the general equation:

y = 20x + 249

In this equation, x the the time in months and y is the amount of money spent.

Substitute 250 for y.

y = 20x + 249

250 = 20x + 249    <= isolate x to get the number of months

1 = 20x

x = 1/20

Carol will only spent money every month, not for 1/20 of a month.

It will only take Carol 1 month to spent $250.

Check answer:

Substitute x for 1

y = 20x + 249

y = 20(1) + 249

y = 269

269 is more than 250 already.

3 0
3 years ago
Read 2 more answers
A concert is being held in your hometown. 1500 tickets are sold. Adult tickets are $10.50 and child’s tickets are $7.50. If a to
kobusy [5.1K]

Answer: 200 child tickets & about 143 adult tickets.

Step-by-step explanation:

1st: 1500 / 7.50 = 200

2nd: 1500 / 10.50 = 142.857 (Notice how I put ABOUT)

X = 200

Y = About 143

Welcome!

6 0
3 years ago
WHAT IS 225.45 + 90.32 ROUNDED TO THE NERST NUMBER
Blizzard [7]
225.45
+90.32
______
315.77
Nearest whole number
316
7 0
3 years ago
Read 2 more answers
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