Tahmar knows the formula for simple interest is I = Prt, where I represents the simple interest on an amount of money, P, for t years at r rate. She transforms the equation to isolate P : P = . Using this formula, what is the amount of money, P, that will generate $20 at a 5% interest rate over 5 years?

Answers

Answer 1
Answer:

Answer: $80

Step-by-step explanation:

Given: The simple interest generated after 5 years = $20

The rate of interest =5%

In decimal, the rate of interest (r)= 0.05

Let P be the principal amount, which Tahmar invested.

The given formula to find simple interest is

I=Prt\n\n\Rightarrow P=(I)/(rt)\n\n\text{On substituting the given values, we have}\n\n\Rightarrow P=(20)/(0.05*5)\n\n\Rightarrow P=80

Hence, the principal amount which he invested = $80

Answer 2
Answer: The answer is $80 for this question.

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suppose it has been determined that the probability is 0.6 that a rat injected with cancerous cells will live. if 35 rats are injected, how many would be expected to die

Answers

Answer:

Calculating this, we find that approximately 14 rats would be expected to die.

Step-by-step explanation:

determine the number of rats expected to die, we need to multiply the probability of dying (1 - 0.6 = 0.4) by the total number of rats injected. Probability of dying = 1 - Probability of living = 1 - 0.6 = 0.4 Number of rats expected to die = Probability of dying * Total number of rats injected = 0.4 * 35

Jean needs to graph the function below y= 7x^2 + 8x - 6 How many time should the graph of this function intersect at the x-axis?A) 3
B) 2
C) 1
D) 0

Answers

It's a quadratic curve that has a y-intervept below the x axis. Therefore it crosses 2 times

If (x1, y1) = (2, 3); x2= 3 and y3 = -2 and G is (0,0), Find y2 and x3.​

Answers

Its very simple\

To find the values of x2 and y2 for point G(0,0) when you are given that G is the midpoint of points (x1, y1) and (x3, y3), you can use the midpoint formula:

Midpoint formula:

(x, y) = ((x1 + x3) / 2, (y1 + y3) / 2)

Given:

(x1, y1) = (2, 3)

G(0, 0)

Plug these values into the midpoint formula:

(0, 0) = ((2 + x3) / 2, (3 + y3) / 2)

Now, solve for x3 and y3:

For x3:

0 = (2 + x3) / 2

Multiply both sides by 2 to isolate x3:

0 = 2 + x3

Subtract 2 from both sides to find x3:

x3 = -2

For y3:

0 = (3 + y3) / 2

Multiply both sides by 2 to isolate y3:

0 = 3 + y3

Subtract 3 from both sides to find y3:

y3 = -3

So, the values are:

x3 = -2

y3 = -3

Therefore, the coordinates for point (x2, y2) are:

x2 = 3

y2 = -3

June plans to buy a new pair of jeans. they are on sale for 25% off. if the original price is $35.00, how much will she save on her jeans?

Answers

To find the discount, multiply the decimal version of the percent by the original price.
25% = 0.25
0.25 • 35.00 = 8.75
This means there is a $8.75 discount, or $8.75 off in other words.
All that's left to do is subtract the discount amount from the original price.
35.00 - 8.75 = 26.25
So the price of the jeans with the sale is $26.25.
25% off of $35.00 is...

*multiply 35 × .25 (move decimal over to the left twice so that it is not a "percentage")

*35 × .25 = 8.75 (now since 25% is 1/4th of 100% you can multiply 8.75 by 4 to make sure you get the full 100% price of $35.00)

*now you know 8.75 is 25% of $35.00

*subtract 8.75 (25%) from 35 (100%)

*35 - 8.75 = 26.25

*june will pay $26.25 with the 25% sale off of the $35.00 original price of the jeans.

Can you please help me

Answers

(a) F = ma , a = F/m

(b) a = F/m, a= -25/10 = -2.5 units

(c)m = F/a, m= 25/5 = 5 units

The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.a. 8/9
b. 2

Answers

Hello,

Answer B
a_(0)=-5\na_(9)=a_(0)+9*r\n13=-5+9*r\nr= (18)/(9)=2