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3 years ago

15

Find the value of x in each case:

1 answer:

kipiarov [429]3 years ago

5 0

X = 69o
2x + 42 = 180
=> x = 69

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FIND (-8/3)+(-1/4)+(-11/6)+3/8-3

emmainna [20.7K]

Answer:

-7 3/8

Step-by-step explanation:

The least common denominator of 3, 4, 6, and 8 is 24; converting all of our fractions to that denominator and solving, we have

$-\frac{8}{3}+\left(-\frac{1}{4}\right)+\left(-\frac{11}{6}\right)+\frac{3}{8}-3\\=-\frac{64}{24}+\left(-\frac{6}{24}\right)+\left(-\frac{44}{24}\right)+\frac{9}{24}-3\\\\=\frac{-64+(-6)+(-44)+9}{24} -3\\\\=\frac{-70+(-44)+9}{24} -3\\\\=\frac{-114+9}{24} -3\\\\=\frac{-105}{24}-3 \\\\=\frac{-35}{8}-3\\ \\=-4\frac{3}{8}-3\\\\=-7\frac{3}{8}$

So our solution is -7 3/8

8 0

3 years ago

2 (2f+2)= help me fast

8_murik_8 [283]

Distribute

2 × 2f + 2 × 2

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D is incorrect and not true.

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if b is greater than a, a can't be greater than b.

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3 years ago

The sum of the digits of a certain two-digit number is 7. Reversing its digits increases the number by 9. What is the number?

kondaur [170]

$10x+y-the\ number\\\\ \left\{\begin{array}{ccc}x+y=7\\10y+x=10x+y+9\end{array}\right$

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