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Andru [333]
3 years ago
12

James and his friends ordered (b) hamburgers that cost $4 each and (f) fruit cups that cost $3 each. What is an algebraic expres

sion for the total cost in dollars
Mathematics
2 answers:
JulsSmile [24]3 years ago
8 0
Hamburgers (b) that cost $ 4 each...and fruit cups (f) that cost $ 3 each...

4b + 3f <== ur expression
zlopas [31]3 years ago
5 0
4b+3f is the algebraic expression

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Answer:

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3 years ago
A fair tossed 10 times . Find the probability of obtaining (i) exactly four heads (ii) 3 heads and 7 tails (iii) at least one he
vodka [1.7K]

Answer:

0.205 ; 0.117 ; 0.999

Step-by-step explanation:

Using binomial probability distribution :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

Probability of success, p = 0.5

P(x = 4) = 10C4 * 0.5^4 * 0.5^6

P(X = 4) = 0.205078125

B.) 3 heads and 7 tails

P(X = 7) = 10C7 * 0.5^7 * 0.5^3

P(X = 7) = 120 * 0.0009765625

P(X = 7) = 0.117

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P(x greater than equal to 1) = p(x =1) +... P(x = 10)

Using a binomial probability calculator :

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3 years ago
Javier's parents set an amount of money aside when he was born. They earned 4.5% simple interest on that money each year. When J
solmaris [256]

Answer:

Javier's parents set aside $1500 when he was born

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

In this question, we have that:

E = 1012.50, t = 15, I = 0.045

We have to find P. So

E = P*I*t

1012.50 = P*15*0.045

P = \frac{1012.50}{15*0.045}

P = 1500

Javier's parents set aside $1500 when he was born

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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