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S_A_V [24]
3 years ago
12

10. Number Sense Solve this puzzle to find the number of counties in Texas. When this 3-digit number is rounded up to the neares

t hundred, it rounds to 300. The digit in the ones place is 4. The sum of the digits in the 3-digit number is 11. What is the number?
Mathematics
1 answer:
monitta3 years ago
4 0

Answer:

The three digit number will be 254 or 344.            

Step-by-step explanation:

Given : When this 3-digit number is rounded up to the nearest hundred, it rounds to 300. The digit in the ones place is 4. The sum of the digits in the 3-digit number is 11.

To find : What is the number?

Solution :

There is a three-digit number.

When this 3-digit number is rounded up to the nearest hundred, it rounds to 300.

i.e. At hundredth place it can be either 2 or 3.

The digit in the ones place is 4.

The sum of the digits in the 3-digit number is 11.

Taking cases :

1) When digit at hundredth place is 2.

The digit in the ones place is 4.

So, The digit at tenth place is 11-4-2=5

The number form will be 254.

2) When digit at hundredth place is 3.

The digit in the ones place is 4.

So, The digit at tenth place is 11-4-3=4

The number form will be 344.

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vovikov84 [41]

Answer:

The confidence interval based on the paired design is wider because there is little variation in mileage between the cars.

Step-by-step explanation:

The sample size randomly collected is matched sample and since the confidence interval is based on the paired design is large and wide. There is small variation between the mileage of the two cars indicating the cars have mileage based on the fuel.

5 0
3 years ago
4(-2d-3)=12, someone please solve this for me asap
wlad13 [49]

4(-3 + -2d) = 12

(-3 * 4 + -2d * 4) = 12

(-12 + -8d) = 12

-12 + -8d = 12

-12 + 12 + -8d = 12 + 12

-12 + 12 = 0

0 + -8d = 12 + 12

-8d = 12 + 12

12 + 12 = 24

-8d = 24

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5 0
3 years ago
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3 0
3 years ago
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Divide 33 into two groups so the ratio is 4 to 7 how do you divide it
Vladimir79 [104]
Split 33 into two numbers that when added up are 33.
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7 0
3 years ago
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For integers a, b and k, we know that a >12, b > 20 and a < b. If b=7k, what is the value of k ?
Doss [256]

This question is incomplete, the complete question is;

For integers a, b and k, we know that a > 12, b < 20 and a < b. If b=7k, what is the value of k ?

Answer: the value of k = 2

Step-by-step explanation:

Given that;

a > 12

b < 20

a < b

If b = 7k

Now if k = 1      {b = 7k = 7}

b would be equal to 7 but b has to be greater than 20

IT CANT BE

if k = 2        { b = 7k = 14}

b would be equal to 14, a is greater than 12, b has to be less than b; 14 < 20,

a has to be less than than b ( 12 < 14 )

IT IS

if k = 3      {b = 7k = 21}  

b would be equal to 21, so b is greater than 20 and a is less than 21

IT CANT BE

Therefore the value of k = 2

5 0
3 years ago
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