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3 years ago

What is the sum of 1/9, 2/3, and 5/18? A. 19/18 B.4/15 C. 12/9 D. 8/20

Mathematics

1 answer:

kari74 [83]3 years ago

8 0

Answer:

19/18

Step-by-step explanation:

The GCF of 9, 3, and 18 is 18.

Each denominator must be multiplied to 18, and as a result what you multiply in the denominator MUST be multiplied in the numerator.

9 * 2 = 18

1 * 2 = 2

2/18

3 * 6 = 18

6 * 2 = 12

12/18

5/18

Add all three fractions together:

12/18 + 5/18 + 2/18 = 19/18

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Passage : ( -5/6) + 2/4

Ulleksa [173]

To add fractions, find the LCD and then combine.
Exact Form:

- 1/3 ( write as fraction)

Decimal Form:

-0.3

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3 years ago

What is the slopeOf a line that is perpendicular to a line who’s equation is 8y-5x=11

Anna35 [415]

first off, let's put 8y - 5x = 11, in a slope-intercept form, so we can see what's its slope

$\bf 8y-5x=11\implies 8y=5x+11\implies y=\cfrac{5x+11}{8} \\\\\\ y=\stackrel{slope}{\cfrac{5}{8}}x+\cfrac{11}{8}$

so the slope of this line is 5/8, well then

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{\cfrac{5}{8}}\qquad \qquad \qquad \stackrel{reciprocal}{\cfrac{8}{5}}\qquad \stackrel{negative~reciprocal}{-\cfrac{8}{5}}}$

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3 years ago

Delaney would like to make a 10 lb nut mixture that is 60% peanuts and and 40% almonds. She has several pounds of peanuts and se

vazorg [7]

Answer:

If there is "p" pounds of peanuts and "m" pounds of '20% peanuts and 80% almonds' mixture, then, we can get the following equations,

p + m = 10 -----------(1) and

4m/5 = 4 ------------(2)

whose solution is 5 lb peanuts and 5 lb mixture.

Step-by-step explanation:

In the mixture which Delaney wants to make there would be

$\frac {10 \times 60}{100}$ lb

= 6 lb of peanuts

So, there will be (10 - 6) lb

= 4 lb of almonds

If Delaney has "p" pounds of peanuts and "m" pounds of the '20% peanuts and 80% almonds' mixture, then according to the question,

p + m = 10 -----------(1) and

4m/5 = 4 ------------(2)

So, from (2),

m = 5 --------------(3)

So, from (1) and (3) ,

p = (10 - 5) = 5

7 0

3 years ago

How do I find p in simple interest

xenn [34]

 U can find Principle in simple interest by using the formula and that is:

P=I *100/T *R

 Hope this will help u...

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3 years ago

Read 2 more answers

PLS HELP WITH THIS QUESTION

erma4kov [3.2K]

Answer:

two minute difference

Step-by-step explanation:

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3 years ago