All categories

2 years ago

Find two numbers, if Their sum is 3/5 and their difference is 7 1/5

2 answers:

7 0

Set up a system of equations:

x + y = 0.6
x - y = 7.2

You can solve using elimination. Add the two equations together:

2x + 0y = 7.8
2x = 7.8
x = 3.9

Then plug the number back into either of the two original equations to solve for y:

3.9 + y = 0.6
y = -3.3

The two numbers are 3.9 and -3.3

Dmitry_Shevchenko [17]2 years ago

3 0

Answer:

3.9 and -3.3

Step-by-step explanation:

You might be interested in

What is the integral of y'sinx=ylny ...?

Salsk061 [2.6K]

Y'sinx=ylny, is equivalent to dy / dx (sinx=ylny, and dy sinx=ylny dx
it is similar to dy/ylny = dx/sinx
so integral (dy/ylny = integral dx/sinx)
integral dx/sinx)= Ln{abs value ( tan(x /2 + pi /4)}
integral (dy/ylny= ln(lny)
final answer is lny = {abs value ( tan(x /2 + pi /4)}+C, you can find y, or x

3 0

3 years ago

How do write a word problem for the following equation:

lozanna [386]

Three and a half divided by seven-eighth equals seven over two times eight over seven equals fifty over fourteen equals four

7 0

3 years ago

What is the total amount and the amount of interest earned on $5,000 at 8% for 20 years? Total Amount Interest Amount compounded

Lina20 [59]

Answer:

final balance = 24,634.02

compound interest = 19,634.02

Step-by-step explanation:

3 0

2 years ago

The fox population in a certain region has a continuous growth rate of 6 percent per year. It is estimated that the population i

riadik2000 [5.3K]

Answer

$P(t) = 19100. e^{0.06t}$

b) P(8) =30866

Step-by-step explanation

Use formula:

$P(t) = P. e^{rt}$

Here, P = 19100

r = 6% = 0.06

$P(t) = 19100. e^{0.06t}$

b) t = 2008 - 2000 = 8

$P(8) = 19100. e^{0.06\times 8}$

$P(8) = 19100. e^{0.48}$

$P(8) = 19100\times 1.616\\\\P(8) = 30,865.6\\\\P(8) \approx 30,866$

6 0

2 years ago

Which one that doesn’t belong ? 1/20, 20/25, 2/3, 5,4 Need help!!

Setler [38]

Answer:

$\frac{5}{4}$

Step-by-step explanation:

Out of the given options, $\frac{5}{4}$ is the only fraction that is improper. All other options are not improper. Therefore, $\frac{5}{4}$ would not belong is the given group of fractions.

Hope this helps.

3 0

2 years ago

Read 2 more answers