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3 years ago

13

The ratio of rock songs to dance songs on Jonathan's MP3 player is 5:7. If Jonathan has between 100 and 110 rock and dance songs

, how many rock songs does he have?

1 answer:

FinnZ [79.3K]3 years ago

3 0

I do not belive my answer is right but 100:110 maybe? Sorry if I'm wrong.

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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

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3 years ago

The perimeter of a parallelogram must be no less than 40 feet. The length of the rectangle is 6 feet. What are the possible meas

tatuchka [14]

Answer: $14\ ft$

Step-by-step explanation:

Given

Length of rectangle is $6\ ft$

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Suppose l and w be the length and width of the rectangle

$\Rightarrow \text{Perimeter P=}2(l+w)\\\Rightarrow P\geq 40\\\Rightarrow 2(l+w)\geq40\\\Rightarrow l+w\geq20\\\Rightarrow w\geq20-6\\\Rightarrow w\geq14\ ft$

So, the smallest width can be $14\ ft$

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3 years ago

Find the point where the two lines intersect. Graph the lines.

ivann1987 [24]

Answer:

3,-4

Step-by-step explanation:

im not sure if this is right or not but I tried

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3 years ago

X over 2 + 1 equal 6

Nataly_w [17]

First isolate $\frac{x}{2}$ by subtracting 1 from both sides of the equation.

That gives you $\frac{x}{2} = 5$ .

From here, since x is being divided by 2, multiply both sides of the equation by 2.

So <em>x = 10</em>.

Work is attached in the image below.

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3 years ago

1. Complete the table below to solve the equation 2.5x − 10.5 = 64(0.5x).

Damm [24]

Answer:

western beach: y = -2x + 100

dunes beach : y = 5x + 20

set the equations equal to each other

-2x + 100 = 5x + 20

100 - 20 = 7x

80 = 7x

80/7 = x

x ~ 11.43 years

Step-by-step explanation:

6 0

3 years ago