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Alexxx [7]
3 years ago
11

45 620 000 to the nearest million​

Mathematics
2 answers:
aniked [119]3 years ago
6 0

Answer:

46,000,000 (46 million)

Step-by-step explanation:

If the number to the right (in this case the hundred thousands place) is 5 or greater then you round up.

If it was lower than 5 you would round down.

As the number in the hundred thousands place is 6, this means we can round up.

iris [78.8K]3 years ago
6 0

Answer:

46 000 000

Step-by-step explanation:

45 620 000

The 5 is in the millions place.

Every digit to the right of the millions place becomes zero.

45 000 000

Now you need to decide if the 5 remains as a 5 or if it goes up to a 6. In the original number, look at the first digit to the right of the 5. If it is from 0 to 4, the 5 remains as 5. If it is from 5 to 9, the 5 goes up 1 to 6.

45 620 000

The first digit to the right of the 5 is a 6, so the 5 in the millions place goes up to 6.

Answer: 46 000 000

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Vesnalui [34]

Answer:

Step-by-step explanation:

so 20% of the total price equals $ 30

let x represent the total price

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0.20x = 30

x = 30 / 0.20

x = 150 <=== total price

7 0
3 years ago
When Scott woke up this morning, the temperature was 2°F. The temperature fell 5° by noon. Scott used this number line to model
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7/12% of a quantity is equal to what fraction of the quantity?
serg [7]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Reagan scored 1140 on the SAT. The distribution of SAT scores in a reference population is normally distributed with mean 1000 a
krok68 [10]

Answer:

Jessie scored higher than Reagan.

Step-by-step explanation:

We are given that Reagan scored 1140 on the SAT. The distribution of SAT scores in a reference population is normally distributed with mean 1000 and standard deviation 100.

Jessie scored 30 on the ACT. The distribution of ACT scores in a reference population is normally distributed with mean 17 and standard deviation 5.

For finding who performed better on the standardized exams, we have to calculate the z-scores for both people.

1. <u>Finding z-score for Reagan;</u>

Let X = distribution of SAT scores

SO, X ~ Normal(\mu=1000, \sigma^{2}=100^{2})

The z-score probability distribution for the normal distribution is given by;

                                    Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 1000

            \sigma = standard deviation = 100

Now, Reagan scored 1140 on the SAT, that is;

       z-score  =  \frac{1140-1000}{100}  =  1.4

2. <u>Finding z-score for Jessie;</u>

Let X = distribution of ACT scores

SO, X ~ Normal(\mu=17, \sigma^{2}=5^{2})

The z-score probability distribution for the normal distribution is given by;

                                    Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 17

            \sigma = standard deviation = 5

Now, Jessie scored 30 on the ACT, that is;

       z-score  =  \frac{30-17}{5}  =  2.6

This means that Jessie scored higher than Reagan because Jessie's standardized score was 2.6, which is 2.6 standard deviations above the mean and Reagan's standardized score was 1.4, which is 1.4 standard deviations above the mean.

6 0
3 years ago
If f(x)= 3x + 1 and f^(-1)= x-1/3, then the ordered pair of f^(-1)(10)=
iragen [17]

The answer is B

The correct inverse of 3x+1 is actually (1/3)x - 1/3

plug in 10 to the inverse

10/3 - 1/3 = 9/3 or 3

this gives you the point (10,3)

8 0
3 years ago
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