3 years ago

You have 704 grams of a radioactive kind of praseodymium.If it's half life is 17 minutes,how much will be left after 69 minutes?

Mathematics

1 answer:

grigory [225]3 years ago

7 0

There will be nothing left

You might be interested in

What is answer I need to know

Kitty [74]

D 1 to the 4th power

4 0

3 years ago

Please help Magan recorded the grade-level and instrument of everyone in the middle school

jeyben [28]

Answer:

$Probability = \frac{11}{40}$

Step-by-step explanation:

Given

See attachment

Required

The probability that a 7th grader selected will play guitar.

From the attachment, we have:

$7th\ graders =11+8+8+13$

$7th\ graders =40$

7th graders that can play guitars are:

$Guitars = 11$

So, the probability is:

$Probability = \frac{Guitars}{7th\ graders}$

$Probability = \frac{11}{40}$

5 0

3 years ago

Write a fraction and a percent for the shaded portion of each one.

Cerrena [4.2K]

I dunno if im correct, but for A. I’d say 1/4 for B. I’d say 1 1/2 for C. 2/3

4 0

3 years ago

Read 2 more answers

Duane is making cookies. The recipe calls for two times as many cups of sugar as butter, two times as many cups of oats as sugar

Tamiku [17]

Answer:

6.0

Step-by-step explanation:

: (2.0+(2.0+2.0)) = 6.0

6 0

3 years ago

40 is 20% of x. If x is 80% of y, then what is the sum of x and y?

Tanzania [10]

40 is 20% of x

40 = .2 * x

40/.2 = x

x =200

x is 80% of y

x = .8 * y

200 = .8 *y

200/.8 = y

250 =y

x+y

200+250

450

5 0

3 years ago