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Sonbull [250]
3 years ago
9

The sum of two numbers is 30 and their difference is 12

Mathematics
1 answer:
Elina [12.6K]3 years ago
6 0
The correct answer is 21 and 9. 21+9=30 and 21-9=12. Hope this helps.
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22 rides would be needed Explanation: one ride takes 6 kids and there are 130 kids 20 rides would take 120 21 rides would take 126 and since you can’t have kids without a ride and you can’t cut a ride into pieces there must be 22 rides
3 0
3 years ago
Consider a total of 1,000 people. If it was said that within 1 deviation (of the mean) of all people like MATH 123, how many of
Lesechka [4]

Answer:

680 students

Step-by-step explanation:

The 68 - 95 - 99.7  rule (empirical rule) states that 68% of the population lies within one standard deviation of the mean,  95% of the population lies within two standard deviations and 95% of the population lies within three standard deviations.

Hence since it was said that within 1 deviation (of the mean) of all people like MATH 123, therefore the number of people that like MATH 123 is:

number of people that like MATH 123 = 68% of the population

number of people that like MATH 123 = 0.68 * 1000

number of people that like MATH 123 = 680 students

3 0
3 years ago
3,047.092 in expanded form.
il63 [147K]

Answer:

it would be-3,000.000+40.000+7.00+0.09+0.002

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Round 10.245 to the place that 2 is underlined
cricket20 [7]
10.20
BECAUSE IF YOU ROUND THE TENTHS 4 MEANS 0.  
6 0
3 years ago
Read 2 more answers
If x = 10, y = 5, and z = 11, what is the sine ratio for g°?
salantis [7]

Answer:

\frac{10}{11}

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

In the right triangle ABC

sin(g^o)=\frac{AC}{AB} ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

sin(g^o)=\frac{x}{z}

sin(g^o)=\frac{10}{11}

8 0
3 years ago
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