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Mrrafil [7]
3 years ago
12

Re-write the statement 19+7÷2-5 by including ONE pair of brackets to make the total value equal to 8

Mathematics
1 answer:
Rashid [163]3 years ago
3 0

Answer:

(19+7)÷2-5

Step-by-step explanation:

you need to add 19 and 7 together first to get 8 then go in order of operations

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A number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller number and 1. How m
Pie

Answer:

No solutions exist because the situation describes two lines that have the same slope and different y-intercepts.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to call the numbers x and y.

A number is equal to twice a smaller number plus 3.

Greater number is x, and smaller is y. So

x = 2y + 3

The same number is equal to twice the sum of the smaller number and 1.

This means that x = 2y + 1

Equaling the values for x:

2y + 3 = 2y + 1

0y = -2

y = -\frac{2}{0}

Since division by 0 does not exist, it means that there is no solution for the system.

5 0
3 years ago
HOW PLEASE EXPLAIN TOO WITH ANSWER
kolezko [41]

Answer:

y = -2x + 3

Step-by-step explanation:

5 x -2 + 3 = -7

3 x -2 + 3 = -7

9 x -2 + 3 = 1

-3 x -2 + 3 = 9

You just have to test all of the options, everything, out and pick what fits.

Hope that helps!

6 0
3 years ago
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PLEASE HELP!! 8th grade
schepotkina [342]
-1.5 !! this is easy hope this helps
4 0
3 years ago
Please Help me! Thankkss
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3 0
4 years ago
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Replace ∗ with a monomial so that the trinomial may be represented by a square of a binomial: 25a^2+ ∗ + 1/4b^2
Nadya [2.5K]
The square of a binomial is a pattern you would do well to remember.
.. (x +y)^2 = x^2 +2xy +y^2

Your expression has x^2 = 25a^2, so x = 5a. It also has y^2 = (b^2)/4, so y = b/2.
then the middle term is
.. 2xy = 2(5a)(b/2) = 5ab

The trinomial is
.. 25a^2 +5ab +(1/4)b^2 = (5a +b/2)^2
7 0
4 years ago
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