3 years ago

Please explain this to me and say the answer!! ASAP!!!

Mathematics

1 answer:

Ber [7]3 years ago

5 0

Here....see the attachment...
Hope this helps ^^

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A border collie is on sale at a 20% discount. If it normally sells for $475.00, what is the sale price?

tatyana61 [14]

What you have to do is multiply 475.00 by .20. Then from there yousubtract 475-(475*.20). From there you will get the answer.

8 0

3 years ago

Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

7 0

3 years ago

I want a way to solve this question

noname [10]

Answer:

Step-by-step explanation:

$cos~L=\frac{m^2+n^2-l^2}{2mn} \\=\frac{5^2+8^2-7^2}{2*5*8} \\=\frac{25+64-49}{80} \\=\frac{40}{80} \\=\frac{1}{2} \\=cos 60\\$

∠L=60°

5 0

2 years ago

Solve the problem attached in the image

EleoNora [17]

Answer:

no te entiendo

yo también la busco

4 0

3 years ago

Read 2 more answers

How many solutions can be found for the linear equation?<br><br> 4(x + 5) - 5 = <br> 8x + 18<br> 2

Elena L [17]

Answer:

$4x + 20 - 5 = 0 \\ 4x + 15 = 0 \\ 4x = - 15 \\ x = - \frac{15}{4}$

Step-by-step explanation:

$8x + 18 = 0 \\ 8x = - 18 \\ x = - \frac{18}{8} \\ x = - \frac{9}{4}$

7 0

3 years ago