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3 years ago

* Use order of operations to solve the following.

Mathematics

2 answers:

fiasKO [112]3 years ago

4 0

Answer:

3+5 2×2 -7

8+4-7

12-7

^^^^

Bingel [31]3 years ago

3 0

The answer is 100 if that 5 and 2 is separate

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What is the solution to the system of equations?<br><br> 6x – 9y = 16<br><br> 2x – 3y = 7

kifflom [539]

The first step for solving this problem is to multiply both sides of the bottom equation by -3.
$\left \{ {{6x-9y=16} \atop {-6x + 9y = -21}} \right.$
Add the two equations together.
6x - 9y - 6x + 9y = 16 - 21
Eliminate the opposites.
-9y + 9y = 16 - 21
Remember that the sum of two opposites equals 0,, so the equation becomes the following:
0 = 16 - 21
Calculate the difference on the right side of the equation.
0 = -5
This means that the statement $\left \{ {{6x-9y=16} \atop {2x-3y=7}} \right.$ is false for any value of x and y. That means that the answer to your question is (x,y) ∈ ∅,, or no solution.
Let me know if you have any further questions.
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8 0

3 years ago

Tim picked 1 7/12 buckets of apples, and Fred picked 4 2/3 buckets of apples. How many more buckets did Fred pick?

ElenaW [278]

The answer is 2 buckets

Explain:
Tim picked 1 7/12 and Fred picked 4 2/3
These as improper fractions are 19/12
And 8/3
To make these have the same denominator you would times the 8/3 by 4 to give 32/12
Take these two away, Fred has 13 more apples.
And as we calculated it with there being 12 in each bucket there would be one full bucket but we would need another bucket for the apple left
So Fred picked 2 more buckets than Tim.
Hoped it makes sense and that I helped

3 0

3 years ago

Write the following number in decimal notation. Three thousand five hundred and seven hundredths

viktelen [127]

3500.07

I hope this helps!

8 0

3 years ago

Read 2 more answers

At a construction job for a house there are 16 painters. Of these painters, 4 of them are painting the

Nikolay [14]

For this case, we have the total of painters is 16, so to determine what percentage is painting the interior of the house, we make a rule of three:

16 ---------------> 100%

4 -----------------> x

Where "x" represents the% of painters who paint the interior of the house.

$x = \frac {4 * 100} {16}\\x = 25$

Thus, 25% of painters are painting the interior of the house.

Answer:

25%

8 0

3 years ago

Someone please help <33

Troyanec [42]

Distribute

4x(2x^2-4x+5)-5x(2x+6)

8x^3-16x^2+20x-10x^3-30x

Combine Like Terms

8x^3-16x^2+20x-10x^3-30x

-2x^3-16^2+20x-30x

Combine like terms

-2x^3-16x^2 +20x-30x

-2x^3-16x^2-10x

Common factor

Factor by grouping

-2x^3 - 16x^2-10x

Find one factor

-2(x^3+8x^2+5x)

--------------

<h2>Your answer: -2x(5x^2+4x+5)</h2><h2>(Simplified = 10x^3 + 8x^2 + 10x)</h2>

7 0

2 years ago