Asum of money amounting to p5.15 consists of 10 cents and 25 cents, if there are 32 coins in all, how many 25 cents are there? a. 14 pcs b. 13 pcs c. 15 pcs d. 12 pcs

Option 'B' is correct.

Step-by-step explanation:

Let the number of 10 cents pcs be 'x'.

Let the number of 25 cents pcs be 'y'.

Since we have given that

Total number of coins = 32

Sum of money = $5.15

As we know that

$1 = 100 cents

$5.15 = 5.15×100 = 515 cents

According to question, we get that

Using the graphing method, we get that

x = 19

y = 13

So, there are 13 pcs of 25 cents.

Hence, Option 'B' is correct.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.