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2 years ago

Work out 140-3^2×(8+4)+6÷2

Mathematics

1 answer:

kiruha [24]2 years ago

4 0

Answer:

140 - 9 (12) + 3

140 - 108 +3

140 - 111

= 29

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Step-by-step explanation:

The key to solving word problems is in translation: turning word into math

Below is a general approach to most/any word problem

1. Read through the whole question once, without lingering over details, to get some sense of the overall problem

2. identify and label the variables or unknowns in a way that makes it easy to remember what they stand for.

3. translate the problem into one or more equations, sentence by sentence, and be careful of the order in which you translate the terms

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5. check your work

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Given an integer, how do you find it's opposite?

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Given an integer, how do u find its opposite....

change the sign

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luda_lava [24]

Larger because I want the points and you are going to get an F

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3 years ago

HELLLPPPPPPPPPPPPPPPPPPPPPPPP

ratelena [41]

Answer:

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The digits 4 comma 5 comma 6 comma 7 comma and 8 are randomly arranged to form a three-digit number. (Digits are not repeate

fenix001 [56]

Answer:

0.1 or 1/10

Step-by-step explanation:

The digits 4, 5, 6, 7 and 8 are randomly arranged to form a three digit number, where the digits are not repeated.

This is question of permutation.

Imagine this sum as; there are 3 boxes(blank spaces for digits) and 5 different fruits(digits) are to be put in these boxes, where a box can hold a maximum of only 1 fruit. The number of such permutations are: ⁵P₃

By formula (a! is factorial a):

ᵃPₙ $= \frac{a!}{(a-n)!}$

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⁵P₃= 60

This is the total count of possible numbers that can be formed.

Now, for a number to be greater than 800 and even; first digit should necessarily be 8. Last digit can be 4 or 6. Using these conditions, there are 6 possibilities. 854, 864, 874, 846, 856, 876 are the numbers.

The probability that number is even and greater than 800 is:

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2 years ago