### Answered by answersmine:

2) Then you add 15+5 and get 20.

3) Finally you subtract 20 and .41666666... and you get 19.5833333...

4) you can simplify 19.583333... to 19.584 if you need to.

## Related questions in Mathematics

### What is the multiple of two numbers and one of the number is a multiple of another give an example

### A complex number, (a + bi), multiplied by (2 + 3i) and added to -i gives the product of (-11 + 5i) and (1 – i).a = and b =

**Answer:**

Hence, we have:

** a= 3 and b= 4**

**Step-by-step explanation:**

It is given that:

A complex number, (a + bi), multiplied by (2 + 3i) and added to -i gives the product of (-11 + 5i) and (1 – i).

i.e.

Since, we know that :

Hence, we have:

i.e. we have:

and

On multiplying equation (1) by 2 and equation (2) by 3 we get:

on putting the value of a into equation (1) we get:

### EXERCISE A one-year membership to a gym costs $725. The registration fee is $125, and the remaining amount is paid monthly. Define a variable. Then write and solve an equation to find how much new members pay each month.

### Solve 60=10√y-3A.y= -39B.y= 39C.y= 39,-39D.y= -10,39

60²=(10√(y-3))²

3600=100(y-3)

3600=100y-300

100y=3600+300

100y=3900

y=3900/100

y=39

we have to chek the possible answer:

10√(39-3)=10√36=10(6)=60

**Answer: B. y=39**

### How to solve this math question

2x - 1 + x + 4 = 12

3x + 3 = 12

3x = 12 - 3

3x = 9

x = 3

:)

### X^2+10x-7 / x^2+10x+25=0 how do i solve for x?

**You just have to solve the next equation:**

**x²+10x-7=0**

Because, if the numerator is equal to "0", then the next expression

(x²+10x-7) /( x²+10x+25)=0

Therefore:

x²+10x-7=0

x=[-10⁺₋√(100+28)]/2=(-10⁺₋√128)/2=(-10⁺₋8√2)/2=-5⁺₋4√2

We have two possible solutions:

x₁=-5-4√2

x₂=-5+4√2

Now, we have to check these possible solutions.

**Remember the denominator cannot be equal to "0".**

if x=-5-4√2

[(-5-4√2)²+10(-5-4√2)-7] / [(-5-4√2)²+10(-5-4√2)+25]=0/32=0

Therefore: x=-5-4√2 is a solution.

if x=-5+4√2

[(-5+4√2)²+10(-5+4√2)-7] / [(-5+4√2)²+10(-5+4√2)+25]=0/32=0

Therefore: x=-5+4√√2 is a solution.

**Answer: we have two solutions for x:**

**x₁=-5-4√2**

**x₂=-5+4√2**

### Given: F(x) = 2x - 1; G(x) = 3x + 2; H(x) = x 2 Find F{G[H(2)]}

### Evaluate the difference quotient for the given function f(x)=1/x, f(x)-f(a)/x-a

### Joe solved and justified each step as shown. Identify Joe’s error and fix his mistake. Step Justification Given equation Multiplication Property of Equality Subtraction Property of Equality

### How do I solve for x ?X +8=-15

### Solve. x-3y+2z=1 -x+4y-4z=1 5x-y+6z=9 Write answer in the form (x,y,z).

-1x + 4y - 4z = 1 → -1x + 4y - 4z = 1

5x - 1y + 6z = 9 → y - 2z = 2

1x - 3y + 2z = 1

-1x + 4y - 4z = 1 → -1x + 4y - 4z = 1 → -5x + 20y - 20z = 5

5x - 1y + 6z = 9 → 5x - 2y + 6z = 9 → 5x - 1y + 6z = 9

19y - 14z = 14

y - 2z = 2 → 19y - 38z = 38

19y - 14z = 14 → 19y - 14z = 14

-24z = 24

-24 -24

z = -1

y - 2z = 2

y - 2(-1) = 2

y + 2 = 2

- 2 - 2

y = 0

x - 3y + 2z = 1

x - 3(0) + 2(-1) = 1

x - 0 - 2 = 1

x - 2 = 1

+ 2 + 2

x = 3

(x, y, z) = (3, 0, -1)

### How do I solve 4(3-y)=6-2(1-3y) ?I'm getting y= -4 12-4y=6-2-6y 12-4y=4-6y 12+2y=4 2y= -8 y= -4

### Grade 7 Math Can anyone help me work out these math questions? Show your work if you will. Solve this equation : 25 - 4 ^ 2 (power) divided by 8 (That is 25 subtract 4 to the second power divided by 8 ) Solve this math equation : 12 X 5 - 8/4 + 7 x 2 (That is 12 multiplied by 5 subtract the fraction 8 over 4 add 7 multiply by 2 )

4^2= 16

16/8= 2

25-2=23

The answer to the first question is

**23**.

12*5-8/4+7*2=

12*5= 60

8/4= 2

7*2= 14

60-2+14= 72

The answer to the second question is

**72**.

Number one is

**23.**

Number two is

**72.**

### Explain how the two steps of mving the decimal and multipying by the power of 10 leave the value of the orginal number unchanged

Sorry if that was super confusing /: I tried my best (not that good at explaining) hope I helped though (:

### Can show me work to the answer that solves these problems

19 goes into 16 0 times so you now look at 163

19 goes into 163 8 times (19x8=152) 163-152=11

Bring down the 4 turning 11 into 114

19 goes into 114 6 times (19x6=114)

You answer will be 86.

If you check your work you will find that 86x19= 1634

I hope this helps.

### Solve for w. 3w+8/2=25 Enter your answer in the box. Please help me!!

multily both sides by 2

3w+8=50

mins 8 both sides

3w=42

divide both sides by 3

w=14

### Solve each given equation and show your work. Tell whether it has one solution, an infinite number of solutions, or no solutions, and identify each equation as an identity, a contradiction, or neither. 6x+3x-6=10x-x-6 25-5x=12-3x+13+8x 4x+8=x+5+7x-4

1. one solution

2. no solution

3.one solution

### A fossilized leaf contains 15% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14. Solve the problem. A. 35,828 B. 15,299 C. 1311 D. 21,839

**Answer:**

Option B - 15299

**Step-by-step explanation:**

**Given :** A fossilized leaf contains 15% of its normal amount of carbon 14. Use 5600 years as the half-life of carbon 14.

**To find :** How old is the fossil (to the nearest year)?

**Solution : **

Let the normal or initial amount of carbon be A,

**According to the question,**

**An exponential function form**

**Where, **a is the initial i.e, a=A

A fossilized leaf contains 15% of its normal amount of carbon 14.

So, f(t)=15% of A

i.e,

b is half-life of Carbon-14 b=0.5

and t is the time span or age of the fossil in years.

**Substitute all the values in the formula,**

**Taking log both side,**

**For 5600 years the age of the fossil is **

**Therefore, Approximately Option B is correct.**

**The fossils are 15299 years old.**

### Use the quadratic formula to solve 9x^2+6x-17=0 A.X=-1,-5B.X=-1+3√2 /3C.X=3+√14 /10D.X=-6+√31 /2

**Answer:**

**option (b) is correct.**

**Step-by-step explanation:**

Given equation

We have to solve the given quadratic equation using quadratic formula.

**For the given standard quadratic equation **

**Quadratic formula is given as **

**Comparing with given quadratic equation, we have a = 9, b = 6 and c = -17**

Substitute in quadratic formula, we have,

Simplify , we have

we get,

Also,

we have,

Thus, seperating both facotors, we have,

and

Simplify, both we get,

**Thus, option (b) is correct.**

### Name the values of the given digits in each number the 2's in 6,228

### The point P is on the unit circle. Find P(x, y) from the given information. The x-coordinate of P is 8 17 and the y-coordinate is positive. P(x, y) = ?

289/289 - 64/289 = 225/289. The square root of that (positive since y is positive) yields 15/17. P(x,y) = 8/17, 15/17.

### Solve. 3x-4y=-5 -x+2y=3 Write answer in the form (x,y).

-x+2y=3

Multiply the second by one:

3x-4y=-5

-2x+4y=6

Combine the equations:

x = 1

Substitute x and solve for y:

-2*1+4y=6

-2+4y=6

4y=8

y=2

Answer:

(1,2)