1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Eddi Din [679]
2 years ago
9

An element with a mass of 650 grams decays by 13.2% per minute. To the nearest minute, how long will it be until there are 220 g

rams of the element remaining?
Mathematics
1 answer:
Elis [28]2 years ago
3 0

Answer: 8

Step-by-step explanation:

You might be interested in
Which is a solution to (x - 3)(x + 9) = -27?<br> x=<br> 39<br> X=-3<br> x=0<br> x = 6
Ghella [55]

Answer:

x = 0

Step-by-step explanation:

4 0
3 years ago
What do the parentheses mean in the expression 8(5x 9x + 6)?
IRISSAK [1]

Answer:

It means the thing you have to do first the first thing you got do and the 8 that is squishing the parentheses is the number you multiply

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Write and solve an inequality that represents the number of days driven without the warning light coming on. Explain clearly wha
marta [7]

Answer:

0.6x < 12.5

x < 20.83 days

Step-by-step explanation:

Diego's family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less. Write an inequality that represents the number of days Diego's father can drive the car without the warning light coming on. Explain each part of your inequality

Car fuel capacity = 14 gallons

Fuel capacity that shows warning light = 1.5 gallons

Fuel capacity without warning light = Car fuel capacity - Fuel capacity that shows warning light

= 14 gallons - 1.5 gallons

= 12.5 gallons

Fuel used per day = 0.6 gallons

Let

x = number of days Diego's father can drive the car without the warning light coming on

The inequality is

0.6x < 12.5

Solve for x

x < 12.5/0.6

x < 20.83 days

7 0
2 years ago
James earned $361.36 for working last week and $347.85 for working this week. What was the total amount he earned?
Svetach [21]
$709.21
$361.36 for week one + $347.85 for week two = $709.21 total for both weeks
3 0
2 years ago
If you add 12 to my number and then multiply the result by 3, you will get 64 more than two-thirds of my number. Find my number.
anastassius [24]

Answer:

The number is 12

Step-by-step explanation:

[] First, let's turn all these words into something mathematical. N will equal "my number"

-><u> If you add 12 to my number</u> and then multiply the result by 3, you will get 64 more than two-thirds of my number.

-> n + 12 <u>and then multiply the result by 3</u>, you will get 64 more than two-thirds of my number.

-> 3(n + 12), you will get 64 more than <u>two-thirds of my number</u>.

-> 3(n + 12) = <u>64 more than</u> \frac{2n}{3}

-> 3(n + 12) = 64 +  \frac{2n}{3}

[] Phew, okay. Now it is something we can solve and less scary;

[Given]

3(n + 12) = 64 +  \frac{2n}{3}

[Distribute]

3n + 36 = 64 +  \frac{2n}{3}

[Multiply both sides by 3]

9n + 108 = 192 + 2n

[Subtract 108 and 2n from both sides]

7n = 84

[Divide both sides by 4]

n = 12

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

8 0
2 years ago
Other questions:
  • I need help with this!
    7·1 answer
  • Consider the function f(x)=2x^2-8x+5.
    15·1 answer
  • Dan had 249 dollars to spend on 7 books. After buying them he had 18 dollars. How much did each book cost?
    7·1 answer
  • Plz helpppppp❤️❤️❤️Urgently
    8·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • Determine if the following point is a solution to the system of equations:
    13·1 answer
  • Find b and round to the nearest tenth... (geometry) plz help fast i’m behind
    11·1 answer
  • Who's interested in helping?​
    5·2 answers
  • The drama club is selling tickets to their play to raise money for the show's expenses.
    13·1 answer
  • Given point P(10,10) and Q(0,4) find point R on segment PQ such that their ratio is 7:3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!