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3 years ago

Does this equation have no solution, zero solution or one solution 5(x+10)-25=5x+25

Mathematics

2 answers:

Vilka [71]3 years ago

7 0

Answer:

infinitely many solutions

Step-by-step explanation:

Because

distribute 5 into (x+10)

5x+50-25=5x+25

5x+25=5x+25

Sophie [7]3 years ago

5 0

Infinity solutions I hope this helped

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Solve the system of equations

insens350 [35]

Answer:

x = 3, y = 1 is the solution of the given system.

Step-by-step explanation:

Here, the given system of equations is:

y = -x + 4 ...... (1)

y = x - 2 .......... (2)

Now, to find the solution of the system, SUBSTITUTE the value of y from equation (1) in to the equation (2). We get ,

y = x - 2 ⇒ -x + 4 = x - 2 ( as from (1), y = -x + 4)

or, -x -x = -2 -4

or, - 2 x = -6 ⇒ x = 6/2 = 3

or, x = 3

⇒ y = x - 2 = 3 - 2 = 1

⇒ y = 1

Hence, x = 3, y = 1 is the solution of the given system.

5 0

3 years ago

Question 5

geniusboy [140]

Answer:

$\frac{4}{9}$

Step-by-step explanation:

To find this probability, we have to know:

How many numbers are there in between 5 and 8 inclusive?
How many total numbers are there?

We simply divide the first answer by the second one and get our probability.

So, the numbers are 5,6,7,8 ----- that is 4 numbers

How many numbers are there in total? That is:

0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 ------- 9 numbers

Thus, the probability is 4/9

7 0

3 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Nutka1998 [239]

Answer:

1/10 10% of 1

Step-by-step explanation:

3/4 0.75

0.2 20% of 1

15/10 150% of 1

14/10 1.4

8 0

3 years ago

Read 2 more answers

Sophie borrowed $2000 and took 3 years to repay the loan and $900 interest.

dedylja [7]

I = p * r * n

i is the interest
p is the principal
r is the interest rate per time period
n is the number of time periods.

in your problem:

i = 900
p = 2000
r = what you want to find
n = 3 years

formula becomes 900 = 2000 * r * 3

solve for r to get r = 900 / 2000 / 3 = .15

that's .15 interest rate per year = 15% per year.

at a nominal interest rate of .15 per year, the interest rate per month would be .15/12 = .0125 per month.

the remaining balance at the end of 6 month is equal to 1907.140183

7 0

3 years ago

Brilliant_brown [7]

Simple.....

you have $\frac{18}{a} =7
$

to find what a is....simplify/multiply both sides....

$a* \frac{18}{a} =7*a$

simplifying it too....

18=7a

$\frac{18}{7} = \frac{7a}{7}$

$\frac{18}{7} =a$

Thus, your answer, C.

5 0

4 years ago