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Afina-wow [57]
2 years ago
8

ANSWER ASAP PLAEASE I NEED HELP

Mathematics
2 answers:
cestrela7 [59]2 years ago
7 0
The answer should be 5/6 hope that helped
Alenkasestr [34]2 years ago
6 0

Answer:

I am saying it would be: 5/6

Step-by-step explanation:

There are only two purple marbles and there are 10 blue and red marbles, so, it's 5/6. Please don't delete my answer, I am only trying to help.

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A survey showed that out of 600 surgery patients at ABC Medical Center, 8% of them had eye surgery. Find the number of patients
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Answer:

48

Step-by-step explanation:

.08x600=48

8 0
3 years ago
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Hello I don’t understand question 9 a and b. Please show working out.<br> Thanks
brilliants [131]
A) I would make the positive integer x and then form an equation.

x + 30 = x^2 - 12
x + 42 = x^2
0 = x^2 - x - 42 this can be factorised
(x - 7) ( x + 6) Therefore x = 7 or x = -6

Since the question asks for a positive integer the answer is 7.

B) two positive numbers x and y.

X - y = 3
x^2 + y^2 = 117

Use these simultaneous equations to figure out each number.

Rearrange the first equation

x = y + 3

Then substitute it into the second equation.

(y+3)^2 + y^2 = 117
y^2 + 6y + 9 + y^2 = 117
2y^2 + 6y - 108 = 0
then factorise this.
(2y - 12) (y + 9)

This means that y = 6 or y = -9 but it’s 6 because that’s the only positive number.

Use y to find x

x = y + 3
x = 6 + 3
x = 9

So the answers are x = 9 and y = 6.
3 0
3 years ago
Art and his friends spent $62 at the movies. Admission tickets cost $12 apiece, and a bucket of popcorn costs $7. Which equation
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Answer: 12t+7p=62

Step-by-step explanation:

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3 years ago
if a credit card has an annual interest rate 13.6% and only the minimum monthly payment of 35 is made, how many months will it t
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3 years ago
The heights of 20-year-old females are normally distributed with a mean of 64 inches and a standard deviation of 2 inches. What
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