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Monica [59]
2 years ago
9

Help help help pleass

Mathematics
2 answers:
Oliga [24]2 years ago
3 0

Answer:

the answer is 0.34 (look down to see a trick to find a fast answer0

Step-by-step explanation:

Remember, when people say 34%, it means 34% of 1. So, 34% is equivalent to .34. We multiply 50 by .34 to get 34% of 50. So, 34% of 50 is 17

Percentages are communative. 34% of 50 is the same as 50% of 34.

natali 33 [55]2 years ago
3 0

the answer is 17.

34 percent of 50 can be written as 34/50.

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If 30%of an amount is 730. What will be 70% of that amount
polet [3.4K]

Answer:

the answer is 511 I think

Step-by-step explanation:

percentage * your amount / 100

(70 * 730) / 100

Amount = 511

5 0
2 years ago
Question:How many joules of gravitational potential energy are stored in an object that has a mass of 8.5 kilograms and is held
Ivenika [448]

Answer:

166.6 joules

Step-by-step explanation:

The formular for potential energy is Mgh

Mass is 8.5 kg

g = acceleration due to gravity (9.8)

height is 2 meters

= 8.5 × 9.8 × 2

= 166.6 joules

Hence the potential energy is 166.6 joules

8 0
3 years ago
Kyle and Taylor ran laps after school to train for the baseball team. The ratio of the number of laps Kyle ran to the number of
Zinaida [17]

Answer:

9 laps.

Step-by-step explanation:

-Let x be the number of laps Taylor runs.

-Given that the ratio of Kyle to Taylor laps is 2:3, we express the actual laps in meters to solve for x as follows:

\frac{Kyle}{Taylor}=\frac{2}{3}\\\\\therefore \frac{2}{3}=\frac{6}{x}\\\\2x=18\\\\x=9

Hence, Taylor runs 9 laps.

4 0
3 years ago
A screening test for a disease shows a positive result in 91% of all cases when the disease is actually present and in 7% of all
Jobisdone [24]

Answer:

0.0713 = 7.13% probability that the result is positive.

Step-by-step explanation:

Probability of a positive test:

91% of 1/650(has the disease).

7% of 1 - 1/650 = 649/650(does not have the disease). So

p = 0.91\frac{1}{650} + 0.07\frac{649}{650} = \frac{0.91 + 0.07*649}{650} = 0.0713

0.0713 = 7.13% probability that the result is positive.

4 0
2 years ago
Write the zero of the polynomial p(x) = 5x + 2.
Nookie1986 [14]

Answer:

-2/5

Step-by-step explanation:

p(x) = 5x + 2

plug p(x) = 0

5x + 2 = 0

5x = - 2

x = - 2/5

6 0
3 years ago
Read 2 more answers
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