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dedylja [7]
1 year ago
8

Annabelle owns a small business selling clothing. She knows that in the last week 56 customers paid cash, 26 customers used a de

bit card, and 9 customers used a credit card.
Based on these results, express the probability that the next customer will pay with a debit card as a percent to the nearest whole number.
Mathematics
1 answer:
frosja888 [35]1 year ago
5 0

Answer

23/51

Step-by-step explanation:

The probability of the next customer paying with a debit or credit card is =23/51

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Rite 18.725 as a mixed number in simplest form.
Mila [183]

18.725 = 18725/1000 = 3745/200 = 749/40 = 18 29/40

so, your answer is 18 29/40

5 0
3 years ago
A positive real number is 2 less than another. When 4 times the larger is added to the square of the smaller, the result is 49.
Kobotan [32]

Answer:

The numbers are

-2+3\sqrt{5}   and 3\sqrt{5}

Step-by-step explanation:

Let

x -----> the smaller positive real number

y -----> the larger positive real number

we know that

A positive real number is 2 less than another

so

x=y-2

y=x+2 ----> equation A

When 4 times the larger is added to the square of the smaller, the result is 49

so

4y+x^2=49 ----> equation B

substitute equation A in equation B

4(x+2)+x^2=49

solve for x

x^2+4x-41=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^2+4x-41=0

so

a=1\\b=4\\c=-41

substitute in the formula

x=\frac{-4\pm\sqrt{4^{2}-4(1)(-41)}} {2(1)}

x=\frac{-4\pm\sqrt{180}} {2}

x=\frac{-4\pm6\sqrt{5}} {2}

x=-2\pm3\sqrt{5}

so

The positive real number is

x=-2+3\sqrt{5}

Find the value of y

y=x+2

y=-2+3\sqrt{5}+2

y=3\sqrt{5}

6 0
3 years ago
CAN ANYONE HELP ME ANSWER THIS PLEASE​
HACTEHA [7]

Answer: 14/45

Step-by-step explanation: The probability that they first event will occur is 2/10. The probability that the second event will occur is 1/9. If you multiply those like it says in the hint you will get 14/45. (I think this is right)

5 0
3 years ago
If the length of rectangle is x + 4 and the width is 3x - 5 what is the perimeter?
statuscvo [17]

Answer:

8x-2

Step-by-step explanation:

l = x+4

w = 3x-5

The perimeter is

P =2(l+w)

   = 2(x+4+3x-5)

Combine like terms

   = 2(4x-1)

Distribute

   = 8x-2

6 0
3 years ago
Read 2 more answers
What is the range of these wages £140 £525
ELEN [110]
140-525 would be the range
4 0
2 years ago
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