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Darya [45]
3 years ago
11

What number is the opposite of the number 0

Mathematics
2 answers:
Klio2033 [76]3 years ago
7 0

Answer:

it is the second one, number zero does not have an opposite

Step-by-step explanation:

RUDIKE [14]3 years ago
4 0

Answer:

B does not have an opposite number

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The sum of the digits of a two-digit number is 5. If the number is multiplied by 3, the result is 42. Write and solve a system o
Elenna [48]
A two digit number has a tens digit and a ones digit.
Let's say x = tens digit and y = ones digit

"The sum of the digits is 5"
x + y = 5

The next phrase is "the number multiplied by 3 is 42" but we need to represent the number using the digits. So they need to be multiplied first by their place value and added together. [Example: 34 = 3(10) + 4(1)]

The number is: 10x + y
3(10x + y) = 42

The system of equations: (two equations for two unknowns)
x + y = 5
30x + 3y = 42

Then you can use substitution or elimination to combine and solve.
I'll use elimination, multiply the entire top equation by -3 and add the equations together. y will cancel out

-3x - 3y = -15
30x + 3y = 42
------------------
27x + 0 = 27
x = 1

then plug x = 1 into either equation to find y

1 + y = 5
y = 4

remember the x and y represent digits so the number xy is 14
6 0
3 years ago
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k0ka [10]
2.25x15= blah blah blah, and boom there is your answer
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For the schools sports day a group of students prepared 21 1/2 lbs of lemonade at the end of the day they had 2 5/8 lbs left ove
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I think the answer is 9 1/4
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Asia new boat has a cruising speed of 24 miles per hour at that rate how long will it take her to travel the 6 miles across old
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Answer:

1/4 of an hour, or 60/4=15, 15 minutes.

Step-by-step explanation:

24/1=6/x

cross product

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3 years ago
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