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anyanavicka [17]
3 years ago
15

Simplify the expression 5i(6-8) A. 40-30i B. 40+30i C. -30+40i D. 30+40i

Mathematics
1 answer:
Mice21 [21]3 years ago
7 0

Answer:

D hope this helps :)

Step-by-step explanation:

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In an examination 80% students passed. if 15 less have appeared and 10 less have passed, the ratio of passers to failures would
Nina [5.8K]

Answer:

60 students passed, and 75 appeared in examination.

Step-by-step explanation:

Let's say s is the total number of students and p is the number of students who passed.

80% of the students passed, so:

0.8 s = p

If there were 10 less passers, and 15 less students (5 less failures), then the ratio of passers to failures would be 5/1.

(p − 10) / (s − p − 5) = 5 / 1

Simplify the second equation:

p − 10 = 5 (s − p − 5)

p − 10 = 5s − 5p − 25

6p = 5s − 15

Substitute the first equation.

6 (0.8 s) = 5s − 15

4.8 s = 5s − 15

0.2 s = 15

s = 75

p = 0.8 s

p = 60

60 students passed, and 75 appeared in examination.

5 0
3 years ago
Omar is born weighing 8 pounds,3 ounces.The doctor says he should gain a about 5 ounces each week for the next 4 weeks.How much
hoa [83]
Start weight- 8.03
week 1 - 8.8
week 2 - 8.13
week 3 - 9.03
week 4 - 9.08

So, the Omar should weigh 9 pounds 8 ounces by the end of 4 weeks.

I hope this helped!
6 0
2 years ago
Read 2 more answers
Kinda need help anything helps
katovenus [111]
First you have to find the slope with the equation y2 - y1 / x2 - x1 , then once you have found the slope (slope = -2) you simply plug it into the point slope formula. y-0 = -2(x-5) solving it algebraically you should arrive at Y=-2x+10. (the 5 and 0 were plugged in are two of the X and Y points of the line which is why we plugged them into the X and Y values of the equation)
6 0
3 years ago
WILL MARK BRAINLIEST PLEASE HELP THIS IS DUE NOW AND NO LINKS!!!
AveGali [126]

Answer:

1/49

<em>Step by step explanation:</em>

5 0
2 years ago
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We theater is giving away a souvenir poster to any customer with a concession stand receive that exceeds $60 the theater sells a
meriva

Answer:  6x + 3.5y > 60

<u>Step-by-step explanation:</u>

Popcorn: cost is $6.00, variable is x

Soda: cost is $3.50, variable is y

Total: GREATER than $60

Popcorn + Soda    >    Total

 6x        +   3.5y    >      60

4 0
3 years ago
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