All categories

4 years ago

The balance in Victor's savings account went from $80 to $120. By what percentage

Mathematics

1 answer:

Nookie1986 [14]4 years ago

4 0

Answer:

50%

Step-by-step explanation:

To find the percent increase, divide the increase by the original value.

The increase is $40.

The original value is $80.

40÷80 = 0.5

0.5 ⇒ 50%

It is a 50% increase.

You might be interested in

Rachel budgeted $76.50 for school clothes this is 0.45 of her total budget how much does Rachel have in her total budget

skad [1K]

Rachel has $170 in her total budget. You would set up a proportion to solve this. $\frac{76.50}{.45} = \frac{x}{1}$

6 0

4 years ago

What is the solution set of the following equation?

Kipish [7]

Dont think theres enough info there to do that

7 0

3 years ago

Re-write the equation 2x-4y=8 in slope intercept form

Nady [450]

Subtract the 2x and divide by -4. y=1/2x-2 or y=x/2-2

4 0

3 years ago

Read 2 more answers

Initially 5 grams of salt are dissolved into 10 liters of water. Brine with concentration of salt 5 grams per liter is added at

DiKsa [7]

Salt flows in at a rate of (5 g/L)*(3 L/min) = 15 g/min.

Salt flows out at a rate of (x/10 g/L)*(3 L/min) = 3x/10 g/min.

So the net flow rate of salt, given by $x(t)$ in grams, is governed by the differential equation,

$x'(t)=15-\dfrac{3x(t)}{10}$

which is linear. Move the $x$ term to the right side, then multiply both sides by $e^{3t/10}$ :

$e^{3t/10}x'+\dfrac{3e^{t/10}}{10}x=15e^{3t/10}$

$\implies\left(e^{3t/10}x\right)'=15e^{3t/10}$

Integrate both sides, then solve for $x$ :

$e^{3t/10}x=50e^{3t/10}+C$

$\implies x(t)=50+Ce^{-3t/10}$

Since the tank starts with 5 g of salt at time $t=0$ , we have

$5=50+C\implies C=-45$

$\implies\boxed{x(t)=50-45e^{-3t/10}}$

The time it takes for the tank to hold 20 g of salt is $t$ such that

$20=50-45e^{-3t/10}\implies t=\dfrac{20}3\ln\dfrac32\approx2.7031\,\mathrm{min}$

3 0

3 years ago

six people working for five days were paid a total of sh 6000.how many more money could the same number of be paid for 12 days??

marin [14]

Let’s work out how much they would be paid in one day:
6000/5 = 1200 for six people in one day.

Now to find 12 days, just times 1200 by 12:
1200*12 = 14400 for six people in 12 days.

Now to find the difference:
14400-6000 = 8400 is how much more money they could’ve made

Answer: 8400

7 0

3 years ago

Read 2 more answers