Element X is a radioactive isotope such that every 14 years, its mass decreases by half.
Given that the initial mass of a sample of Element X is 80 grams, how much of the
element

4 0

3 years ago

Brad sold candy bars and cookies for a fundraiser at school. Candy bars sold for $3, and cookies sold for $5. He sold a total of

Stolb23 [73]

He sold 12 candy bars.
3x + 5y = 76
X + y = 20
2y= 16
Y= 8
X= 20 - 8= 12
Hope this helps.

7 0

3 years ago

How to simplify 12+15/3*6-4

devlian [24]

Answer:

Step-by-step explanation:

5 0

3 years ago

Use the equation I= 10/R to determine the current I when the R is 20 ohms

goldenfox [79]

Answer:

I = $\frac{1}{2}$

Step-by-step explanation:

Given

I = $\frac{10}{R}$

When R = 20, then

I = $\frac{10}{20}$ = $\frac{1}{2}$

5 0

3 years ago