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3 years ago

The sum of two numbers is 34. The smaller number is 20 less than the larger number. What are the numbers?

Mathematics

1 answer:

Leto [7]3 years ago

7 0

Answer:20 and 14

Step-by-step explanation:

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Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest

Fantom [35]

Answer:

$0.66$

Step-by-step explanation:

GIVEN: Suppose that in a certain county $37\%$ of voters are registered as Democrats, $29\%$ as Republicans, $7\%$ as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be $100x$ .

voters registered as Democrats $=37\%=\frac{37}{100}\times100x$

$=37x$

voters registered as Republicans $=29\%=\frac{29}{100}\times100x$

$=29x$

voters registered as Green party $=7\%=\frac{7}{100}\times100x$

$=7x$

Probability that first call will be to Democrats $P(A)=\frac{\text{total democrats}}{\text{total voters}}$

$=\frac{37x}{100x}=0.37$

Probability that first call will be to Republican $P(B)=\frac{\text{total republicans}}{\text{total voters}}$

$=\frac{29x}{100x}=0.29$

probability that the first call will be to either a Democrat or a Republican

$=P(A)+P(B)$

$=0.37+0.29$

$=0.66$

Hence the probability that the first call will be to either a Democrat or a Republican is $0.66$

6 0

4 years ago

(7-4) + 17 / -14 + 2 x 5

Yuliya22 [10]

Answer:

165/14

Step-by-step explanation:

(7-4) + 17 / -14 + 2 x 5

3 + 17/-14 + 2 x 5

3 - 17/14 + 2 x 5

3 - 17/14 + 10

165/14

8 0

3 years ago

3/4 is 1/3 of what number? Write a division expression to match this expression

WITCHER [35]

It would be 9/4. To find 1/3 of something you have to multiply it by 3. 9/4 should be considered as a division expression. Hope this helped!

7 0

3 years ago

Cicily wants to estimate the answer to this problem to see if her answer is reasonable.

suter [353]

I believe that the answer is A- 8600-5300
Hope this helps!

3 0

3 years ago

Chloe has been offered a new job in the women’s shoe department at Macy’s. She has two salary options. She can receive a salary

Oksana_A [137]

She can recieve a salary of $600 per week. If she went with option number two then she would be getting like 500 dollars.

6 0

3 years ago