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Ket [755]
3 years ago
11

How do you know that the sum of (-2 3/4 ) and 5/9 is irrational

Mathematics
1 answer:
Luden [163]3 years ago
8 0

The sum is a fraction.

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She gave 1/3 of cookies for her husband 1/4 of the cookies to her son and 1/6 of a cookies to her neighbor she ate the remaining
beks73 [17]

She made 15 cookies

<em><u>Solution:</u></em>

Let "x" be the number of cookies she made

She gave 1/3 of cookies for her husband

Therefore,

Husband = \frac{1}{3}x

Find the remaining

Remaining = x - \frac{x}{3} = \frac{3x-x}{3} = \frac{2x}{3}

1/4 of the cookies to her son

Therefore,

son = \frac{1}{4} \times \frac{2x}{3} = \frac{x}{6}

Now again find the remaining

Remaining = \frac{2x}{3} - \frac{x}{6} = \frac{x}{2}

1/6 of a cookies to her neighbor

Neighbor = \frac{1}{6} \times \frac{x}{2} = \frac{x}{12}

Now again find the remaining

Remaining = \frac{x}{2} - \frac{x}{12} = \frac{5x}{12}

She ate the remaining six cookies

Therefore,

\frac{5x}{12} = 6\\\\5x = 72\\\\x = 14.4

Thus she made approximately 15 cookies

6 0
4 years ago
Whats the answer for (2x+6)-(7x+3)
Furkat [3]
Well 2x plus 7x equals 9x
 6+3 equals 9
so 9x-9

7 0
3 years ago
Read 2 more answers
Solve for x. 4(5x - 20) = -20 Enter your answer in the box. PLEASE HELP!
Colt1911 [192]
20x - 80 = -20
20x = 60
x = 3
6 0
3 years ago
Read 2 more answers
20 Points + Brainliest for most detail
joja [24]
Once again, I hate proofs so much.

One easy solution is to follow the common logic which is if two lines are both straight and equidistant from each other, SO THEIR PARALLEL, but since education these days asks us to write theses stupid "proofs" here's my attempt:

First off what must we prove to show that two lines are parallel?? 

Well, the<span> first way is </span>if<span> the corresponding angles, the angles </span>that<span> are on the same corner at each intersection, are equal. If those angles are the same, then the </span>lines are parallel<span>. The second is </span>if<span> the alternate interior angles, the angles </span>that<span> are on opposite sides of the transversal and inside the </span>parallel lines, are<span> equal, then the </span>lines are also parallel<span>.

Well angles 1, 2, 3, 4, 5, 6, 7 and 8 are equal and also 90 degrees, thus the corresponding angles and alternate interior angles are all equal, which means that these two lines are parallel. </span>
4 0
3 years ago
last month dory biked 11 times as many miles as karly. together they biked a total of 156 miles. how many miles did dory bike la
soldier1979 [14.2K]
I think You have to divide 159 by 11, and that would make you get 14.
7 0
3 years ago
Read 2 more answers
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