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3 years ago

8

There are 80 sixth graders, 90 seventh graders, and 70 eighth graders at your school. Every student gets entered in a raffle. Wh

at is the probability that a seventh-grade student will win the raffle?

2 answers:

Effectus [21]3 years ago

7 0

The answer is a <span>42.857% chance which is 3/8

I'm glad to help, I hope this was helpful </span>

Bad White [126]3 years ago

4 0

answer

38

Step-by-step explanation:

P(seventh grade winner) = 38

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PLEASE SOMEONE HELP ME ANSWER THIS !!!!

Mumz [18]

Step-by-step explanation:

Part A: Linear Equation.

One of the points is (0,15). This means 0,15 is the y intercept so b=15.

We can find the slope

$\frac{5 - 15}{1 - 0 } = \frac{ - 10}{1} = - 10$

So our equation is

$y = - 10x + 15$

Part B: Exponential Equation

We know that

$15 = a \times b {}^{0}$

B to the zero power is 1 so

$15 = a$

This means a =15. Now let find b.

$5 = 15 \times b {}^{1}$

$\frac{1}{3} = b$

So the equation is

$y = 15( \frac{1}{3} ) {}^{x}$

6 0

2 years ago

Put the equation below in the form ax2 + bx + c = 0. Enter exponents using the caret ( ^ ). For example, you would enter 4x2 as

Ymorist [56]

X2+ 4x + 7 = 0 is the correct answer

4 0

2 years ago

Raulf Laue of Germany flipped a pancake 416 times in 120 seconds to set the world record find unit rate round your answer to the

scZoUnD [109]

Raulf Laue of Germany flipped a pancake 416 times in 120 seconds to set the world record find unit rate in flips per seconds. Round your answer to the nearest hundredth

Answer:

3.47 flips per seconds

Step-by-step explanation:

We are told that:

Raulf Laue of Germany flipped a pancake 416 times in 120 seconds

The unit rate = flips per seconds

Flips = 416 times

Seconds = 120

Hence, = 416 flips /120 seconds

= 3.4666666667 flips/seconds

Therefore, the unite rate approximately to the nearest hundredth is 3.47 flips/seconds.

3 0

3 years ago

carol is making baby blankets for her daughters twins. If one blanket needs 43/4 yd of fabric, how much fabric does carol need f

elena-s [515]

Answer:

21 1/2 yd

Step-by-step explanation:

43/4 + 43/4 = 21 1/2 yd

6 0

2 years ago

Please answer. Geometry problem. Unit: Degrees

Zinaida [17]

Answer:

17

Step-by-step explanation:

∠C is common in both triangles

equate them

∠C = 180- (x + 100) = 180 - ( 4x + 49)

x + 100 = 4x + 49

100 - 49 = 3x

51 = 3x

x = 51/3 = 17

3 0

2 years ago