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2 years ago

PLS HELP, PLS LIKE I NEED THIS DONE RN- THANKYOU IF U HELP ME, ALSO U WILL GET 5 STARS!!!

Mathematics

1 answer:

Oduvanchick [21]2 years ago

7 0

Answer:

I believe the answer is
the mouse costs about/around $1.14
and the mouse pad costs $0.18

Step-by-step explanation:

equation for mouse pad:

the output value is $1.20
and x=15%

equation template: $\frac{1.20}{x}= \frac{100}{15}$
using the reciprocal of both sides gives: $\frac{x}{1.20} = \frac{15}{100}$

Therefore, 15% of $1.20 is $0.18

Equation for Mouse:

the output value is 1.20

and x=95%

Equation template: $\frac{1.20}{x} =\frac{100}{95}$
Using the reciprocal of both sides gives: $\frac{x}{1.20} =\frac{95}{100}$

Therefore, 95% of $1.20 is $1.14

i hope this helps you :>

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large pizza costs $8.95, plus $0.65 for additional toppin. Remi paid $10.90 for a large pizza. How many additional toppings did

umka2103 [35]

Answer: 3 toppings

Step-by-step explanation:

I used a calculator

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3 years ago

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Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher

Artemon [7]

Answer: 2500 years

Step-by-step explanation:

I'm not quite sure if I'm doing this right myself but I'll give it a shot.

We use this formula to find half-life but we can just plug in the numbers we know to find t.

$A(t)=A_{0}(1/2)^t^/^h$

We know half-life is 5730 years and that the parchment has retained 74% of its Carbon-14. For $A_{0$ let's just assume that there are 100 original atoms of Carbon-14 and for A(t) let's assume there are 74 Carbon-14 atoms AFTER the amount of time has passed. That way, 74% of the C-14 still remains as 74/100 is 74%. Not quite sure how to explain it but I hope you get it. h is the last variable we need to know and it's just the half-life, which has been given to us already, 5730 years, so now we have this.

$74=100(1/2)^t^/^5^7^3^0$

Now, solve. First, divide by 100.

$0.74=(0.5)^t^/^5^7^3^0$

Take the log of everything

$log(0.74)=\frac{t}{5730} log(0.5)$

Divide the entire equation by log (0.5) and multiply the entire equation by 5730 to isolate the t and get

$5730\frac{log(0.74)}{log(0.5)} =t$

Use your calculator to solve that giant mess for t and you'll get that t is roughly 2489.128182 years. Round that to the nearest hundred years, and you'll find the hopefully correct answer is 2500 years.

Really hope that all the equations that I wrote came out good and that that's right, this is definitely the longest answer I've ever written.

5 0

3 years ago

HELP ME PLSSSSSS THIS IS HARD

Novosadov [1.4K]

Step-by-step explanation:

Given:

Function 'f' with two variables 'x' and 'y'.

To find:

Function rule if the parent function 'f' is rotated by 270° clockwise.

Solution:

A function given with two variables 'x' and 'y',