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3 years ago

Ground of the following nearest tens and Place a 7639. b_4325671

Mathematics

1 answer:

Maslowich3 years ago

8 0

Answer:

a)7640

b)4325670

Step-by-step explanation:

when rounding off a number one of the factors to consider is the number before the number you are supposed to round off,if the number is greater than 5 or equal to then you can go ahead and add a 1 to the number you have to round off.but if the number before is less than 5 you just have to leave the number the way it is.in this case for the first question you can see that the tens number is 3 and the number before is greater than 5 so you can add a 1 to the 3 to make it 4, bringing the answer to 7640 the 9 becames a zero..for the second one you can see that the number before the tens number is less than 5 so you can't add a 1 to it leaving the answer as 4325670..

I hope this helps

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3 years ago

Harmonic mean if a number h such that (h-a)/(b-h)=a/b Prove h is H(a,b) iff satisfies either relation a. (1/a)-(1/h) = (1/h) - (

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2 years ago

A movie theater charges $15 for standard viewing, $20 for 3D viewing, and $35 for Dinner and a

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According to the question,there are four times as many 3D, x seats as Dinner and a Movie, y seats.

That is, x = 4y

Also, total seats

= (x) + (y) + (z) = 3000...….............eqn(1)

Also, If the theater brings in $53,000 when tickets to all 3000 seats are sold.

20x + 35y + 15z = 53000...........eqn(2)

By substituting 4y for x in equations 1 and 2; we have;

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By solving equations 3 and 4 simultaneously; we have;

y = 200 and z = 2000

and since x = 4y

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Standard viewing = 2000

3D seats = 800

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Ground of the following nearest tens and Place a 7639. b_4325671​

Ground of the following nearest tens and Place a 7639. b_4325671