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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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Help me Please! Find the volume and surface area for all.
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Answer:

V =41.41³

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----

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----

V = 64³

SA =113.32²

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Step-by-step explanation:

Picture 2 = a = 1/2 base = 3.5 x 3.5 = 12.25  b= 5 x 5 = 25

c²= a² + b² = 3.5² + 5²

c ²= √12.25 + √25

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c ² = 6.1237   missing side

Picture 1 + 2  formula SA = bh + (s1 + s2 + s3)H

V =  V= 1/2 b x h  h x SA

Picture 3 + 4  formula SA= a²+ 2a   a² / 4 + h²    V= a²  h/3

5 0
3 years ago
Robin spent $ 28 at an amusement park For admission and rides. If she paid $6 for admission and rides cost $2 each what is the t
motikmotik

Answer:

11 rides

Step-by-step explanation:

let the total amount be y

and let the number of ride be x

the expression for the situation is y=mx+c

given

total amount=$28

admission fee= $6

cost per ride=$2

we are expected to find x

substitute into the expression we have

28=2x+6

28-6=2x

22=2x

divide boths sides by 2 we have

x=22/2

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the number of rides is 11

4 0
3 years ago
As an estimation we are told £3 is €4.
agasfer [191]

Answer:

21

Step-by-step explanation:

7 0
3 years ago
Ed is thinking of a number that is a multiple of both 2 and 5​
scZoUnD [109]
A number that is a multiple of both 2 and 5 is 10
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