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kupik [55]
3 years ago
5

Measured in meters the wavelength of red light is about 8 times 10^-7, and the wave Leung violet light is 4 times 10^-7. The wav

elengths red light is how many times longer than the wavelength of violet light?
8 times 10^-7m
4 times 10^-7m

A. 4 times as long
B. 10^2 times as long
C. 2 times as long
D. 10^7 times as long
Mathematics
2 answers:
forsale [732]3 years ago
6 0

Answer:

2 times as long

Step-by-step explanation:

I know because i got it right!

Can you mark me brainlest please!

zubka84 [21]3 years ago
4 0

Answer:

C. 2 times as long

Step-by-step explanation

8 times 10^-7 written in standard form is 0.0000008

4 times 10^-7 written in standard form is 0.0000004

divide both of them:

=2

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Find the values of the apple, banana and lollypop below.<br><br> Pls help
maks197457 [2]

Answer:

a= Apple = 3

b= Banana =5

v= Lollypop=1

Step-by-step explanation:

36 is divided into 2 giving us 18

Let apple=a

Banana=b

Lollypop=c

In the first half

An apple + 3 bananas=18

a+3b=18 (1)

Second half is further divided into 2

That is,

18÷2=9

First half of the second half

3apples=9

3a=9 (2)

Second half of the second half

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a+b+c=9 (3)

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3a=9 (2)

a+b+c=9 (3)

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3a=9

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a=3

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3b=18-3

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Divide both sides by 3

b=15/3

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b=5

Substitute the value of a and b into (3)

a+b+c=9

3+5+c=9

8+c=9

c=9-8

c=1

Therefore,

a= Apple = 3

b= Banana =5

v= Lollypop=1

6 0
3 years ago
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