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r-ruslan [8.4K]

3 years ago

15

Write an expression for the total cost of movie tickets and popcorn for a group of friends attending a movie, x, if: Movie ticke

ts cost $8.50 each and Each friend will have a box of popcorn that cost $2.25 each. Let x represent the number of friends attending the movie.

1 answer:

Daniel [21]3 years ago

4 0

Answer: 8.50x + 2.25x

Step-by-step explanation:

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An archer hits a bullseye 64% of the time. What is the probability the archer hits

Brums [2.3K]

Answer:

C. 0.077

Step-by-step explanation:

Use binomial probability.

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

n = 10, r = 4, p = 0.64, q = 0.36.

P = ₁₀C₄ (0.64)⁴ (0.36)⁶

P = 210 (0.64)⁴ (0.36)⁶

P = 0.077

6 0

3 years ago

Y^2– 14y + 48 = 0<br> Solve the following quadratic equations by completing the square.

Troyanec [42]

Step by step:
y^2- 14y+48=0
y^2-14y=-48
y^2-14y+49=-48+49
(y-7)^2=1

Answer: y=7+-1

4 0

3 years ago

How many positive integers not exceeding 1000 are not divisible by either 4 or 6?

san4es73 [151]

$\left\lfloor\dfrac{1000}4\right\rfloor=250$

$\left\lfloor\dfrac{1000}6\right\rfloor=166$

$\left\lfloor\dfrac{1000}{\mathrm{lcm}(4,6)}\right\rfloor=\left\lfloor\dfrac{1000}{12}\right\rfloor=83$

$250+166-83=333$

7 0

3 years ago

19,000 is invested in anaccount for 30 years. Find the value of the investment at the end of 30 years if the interest is 7% simp

stiv31 [10]

Answer:

the answer is in the image

5 0

3 years ago

If y varies directlt with x, and y=12 when x=15, what is the value of x when y=16

djyliett [7]

Y=kx
12=15k
12/15=k
12/15=0.8
16=0.8x
16/0.8=x
16/0.8=20
to check 20*0.8=16

5 0

3 years ago