Mathematics, 03.02.2020 14:59 les6965
Every week for
20
weeks, kathy earned
$15
for mowing lawns and
$35
for delivering newspapers. at the end of
20
weeks, she stopped mowing lawns and delivering newspapers and spent
$300
. she didn't earn or spend any money besides what is described here.
write a numerical expression with parentheses for the amount of money kathy has left.
do not simplify your expression.
Answers: 3
Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e â0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some âreal-worldâ examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 17:30
Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125
Answers: 2
Mathematics, 21.06.2019 22:00
There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?
Answers: 2
Mathematics, 21.06.2019 23:00
Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.
Answers: 1
Every week for
20
weeks, kathy earned
$15
for mowing lawns and
$35...
20
weeks, kathy earned
$15
for mowing lawns and
$35...
English, 17.11.2020 06:10
English, 17.11.2020 06:10
Mathematics, 17.11.2020 06:10
Health, 17.11.2020 06:10
Physics, 17.11.2020 06:10
Mathematics, 17.11.2020 06:10
English, 17.11.2020 06:10
Mathematics, 17.11.2020 06:10
Biology, 17.11.2020 06:10