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Firlakuza [10]
3 years ago
15

Need Help with Part b. Is part a 140 times?

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0

Answer:

1680, and No

Step-by-step explanation:

Part A: A mockingbird beats its wings 420 times per 30 seconds (half a minute). This means that a mockingbird will beat its wings 840 times per minute. Multiply this by two and you get 1680 times in two minutes.

Part B: Divide the amount of beats in a minute by 60 (because there are 60 seconds in a minute) and you get the amount of times a mockingbird beats it wings per second.

420/30 = 14 times per second

Ariel said it was 0.07 times per second which is incorrect.

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A line has an x-intercept of 4 and a y-intercept of -2 what is the equation of the line
jekas [21]

Answer:

y=2x -1

Step-by-step explanation:

Finding x-intercepts and y-intercepts

1-To determine the x-intercept, we set y equal to zero and solve for x. Similarly, to determine the y-intercept, we set x equal to zero and solve for y.

2-To find the x-intercept, set y = 0 \displaystyle y=0 y=0.

3-To find the y-intercept, set x = 0 \displaystyle x=0 x=0.

4 0
3 years ago
Flip the coin three times and record your results. While we know the theoretical probability of flipping a heads, what is the ex
ivann1987 [24]

The probability of getting heads while flipping a coin for three times is 1/2

<u>Explanation:</u>

When a coin is flipped then there are two possible outcomes.

We can either get a heads or a tail.

If a coin is flipped three times and the possibility of getting heads would be 3

Total number of outcomes would be 6 ( 2 possible outcomes X 3 times toss)

Therefore, probability of getting heads would be = 3/6

                                                                                     = 1/2

Therefore, the probability of getting heads while flipping a coin for three times is 1/2

4 0
4 years ago
Read 2 more answers
A waiter's weekly salary can be modeled by the equation y = 0.2x + 300, where x is the amount spent by the customers in dollars
stich3 [128]

Answer:

C.

x=500$

y=0.2×500+300

y=100+300

y=400

I let 500$=x because they were spent by the customers

hope this helps you

have a great day :)

4 0
2 years ago
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St. Patrick's Party Punch is made by combining one quart of lime sherbet, two quarts of pineapple juice, and two quarts of ginge
jeka57 [31]

Answer:

C :)

Step-by-step explanation:

125%/3=0.40 turn that into a percent which is 40%

4 0
3 years ago
Which of the following is a solution to this inequality?
Shkiper50 [21]

Answer:

A, B and C

Step-by-step explanation:

example of B

-3×2/3 =-2

-2+2 =0

Y=1 and >0

A and C are also right

Edit: I changed my originally wrong answer, the second poster was right

4 0
3 years ago
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