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Art [367]
2 years ago
5

PLEASE HELP FAST!!!!!

Mathematics
2 answers:
o-na [289]2 years ago
8 0
That would be -9  (because theres a +9y in first equation).
Mademuasel [1]2 years ago
3 0

The equation should be multiplied by -9

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Jack read 20 pages of a book in 60 minutes. How many pages can he read in 75 minutes at the same rate? Write a proportional equa
AveGali [126]

Answer:

25 pages

Step-by-step explanation:

Create a proportion:

\frac{pages}{minutes} = \frac{20}{60} = \frac{x}{75}

Cross multiply and solve for x, the number of pages in 75 minutes:

60x = 1500

x = 25

So, he can read 25 pages in 75 minutes at the same rate

6 0
3 years ago
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The sum of two consecutive natural numbers is 525.<br> Find the numbers.
Luda [366]

Answer:

262 and 263 are consecutive natural numbers whose sum is 525.

Step-by-step explanation:

Natural number are a subset of real numbers consisting in positive integers (i.e. 1, 2, 3, 525) and two natural numbers are consecutive when distance between each other is equal to 1. (|x-y| = 1, \forall\,x,y \in \mathbb{N}) We can interpret the statement mathematically by means of the following expression:

x + y = 525

x = n

y = n+1

Where x, y, n \in \mathbb{N}.

This system is reduced to a single equation and solved afterwards:

n +(n+1) = 525

2\cdot n + 1 = 525

2\cdot n = 524

n = 262

Now we evaluate x and y to obtain the natural numbers:

x = 262

y = 263

262 and 263 are consecutive natural numbers whose sum is 525.

3 0
3 years ago
Given the following system of equations: −x + y = 2 2x + 4y = 32 What action was completed to create this new equivalent system
tiny-mole [99]

Answer:

you just need to devide by 2 the second equation

Step-by-step explanation:

  • -x + y = 2 (you leave it as it is)

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=> x + 2y =16

we can devide or multiply in an equation by any number we want, as long as we do it to every term.

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The volume is twice that of the cube of width, so the width of the original prism is
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Length = 4 cm
Width = 2 cm
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Te dog’s nap started at 7:14am and ended<br> at 7:57am. How long was the dog’s nap?
MA_775_DIABLO [31]

Answer:

The answer is 43 minutes I'm pretty sure.

5 0
3 years ago
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