Ask question

Ask question

All categories

3 years ago

13

An element with a mass of 990 grams decays by 16.9% per minute. To the nearest Minute, how lon will it be until there are 80 gra

ms of the element remaining?

1 answer:

Igoryamba3 years ago

5 0

ye toh mujhe bhi nhi aata.........sorry

You might be interested in

What is <img src="https://tex.z-dn.net/?f=%5Cfrac%7Ba%2B3%7D%7B8%7D" id="TexFormula1" title="\frac{a+3}{8}" alt="\frac{a+3}{8}"

KonstantinChe [14]

Answer: $\frac{2a+6}{8a}$

Step-by-step explanation:

$\frac{2(a+3)}{8a}=\frac{2a+6}{8a}$

4 0

2 years ago

The watering can that Carlos uses in his vegetable garden holds 5 of a certain unit of liquid volume. When full, how much water

Sedaia [141]

you should do 5 times 12 plus the 3 it's better to do multiplication it's easier but if you divide that is ok but the dividing is more work

3 0

3 years ago

Read 2 more answers

For a party in kindergarten balloons of three colors were bought: red, green, and yellow. There were 40 red balloons, the number

marta [7]

Answer: Total number of balloons are 100

and part of balloon is blown up is $\frac{1}{20}$ .

Step-by-step explanation:

Since we have given that

Number of red balloons = 40

Number of green balloons is given by

$\frac{3}{5}\times 40\\\\=3\times 8\\\\=24$

Number of yellow balloons is given by

$24\times \frac{3}{2}\\\\=12\times 3\\\\=36$

So, Total number of balloons were brought to the kindergarten is given by

$40+24+36=100$

Number of red balloons are popped is given by

$\frac{1}{20}\times 40\\\\=2$

Number of green balloons are popped is given by

$\frac{1}{12}\times 24\\\\=2$

Number of yellow balloons are popped is given by

$\frac{1}{36}\times 36\\\\=1$

total number of balloons are blown up is given by

$2+2+1=5$

Therefore, Part of balloon is blown up is given by

$\frac{5}{100}=\frac{1}{20}$

Hence, Total number of balloons are 100

and part of balloon is blown up is $\frac{1}{20}$ .

3 0

4 years ago

What is 89 divided by 27 plus 300 divided by 30

Virty [35]

13.2962963 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

3 0

4 years ago

What is 3x+2x+6=-18

maksim [4K]

Answer:

x = -4.8

Step-by-step explanation:

combine like terms

3x + 2x + 6 = -18

5x + 6 = -18

isolate the terms with the x variable

5x + 6 - 6 = -18 - 6

5x = -24

isolate x

5x/5 = -24/5

x = -4.8

6 0

3 years ago

Read 2 more answers