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padilas [110]
3 years ago
11

PLEASE HELP ME!!! Which of the following is the solution to the equation 4/5 n = 20? Question options: 1) n = 4 2) n = 12 3) n =

16 4) n = 25
Mathematics
2 answers:
MaRussiya [10]3 years ago
7 0

Answer:

4. n = 25

Step-by-step explanation:

To isolate n  we multiply both sides by 5/4

4/5 * 5/4 n = 20 * 5/4

1  *  n = 25

sweet [91]3 years ago
5 0

Answer:

4)n=25.

Step-by-step explanation:

To isolate n, divide both sides by 4/5.

20/.8=25

The answer is 4) n=25

Hope this helps!

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Which expression is equivalent to 5^3?
AleksAgata [21]

Answer:

C and D

Step-by-step explanation:

5^3 - 5^0 = 125 - 1 = 124, so it's not A

5^12 / 5^4 = 5^(12-4) = 5^8, so it's not B

5^7 * 5^-4 = 5^(7+(-4)) = 5^3, so it can be C

5^0 * 5^3 = 5^(0+3) = 5^3, so it can be D

5 + 5^2 = 5 + 25 = 30, so it can't be E

3 0
2 years ago
Find the values of k so that each remainder is three. <br> 10. (x^2+ 5x + 7) = (x + k)
Goryan [66]

Answer:

k=1\text{ or } k=4

Step-by-step explanation:

We can use the Polynomial Remainder Theorem. It states that if we divide a polynomial P(x) by a <em>binomial</em> in the form (x - a), then our remainder will be P(a).

We are dividing:

(x^2+5x+7)\div(x+k)

So, a polynomial by a binomial factor.

Our factor is (x + k) or (x - (-k)). Using the form (x - a), our a = -k.

We want our remainder to be 3. So, P(a)=P(-k)=3.

Therefore:

(-k)^2+5(-k)+7=3

Simplify:

k^2-5k+7=3

Solve for <em>k</em>. Subtract 3 from both sides:

k^2-5k+4=0

Factor:

(k-1)(k-4)=0

Zero Product Property:

k-1=0\text{ or } k-4=0

Solve:

k=1\text{ or } k=4

So, either of the two expressions:

(x^2+5x+7)\div(x+1)\text{ or } (x^2+5x+7)\div(x+4)

Will yield 3 as the remainder.

5 0
3 years ago
Find the four arithmetic means between 100 and 135.
Ad libitum [116K]
114-121-128. i believe to be correct
5 0
3 years ago
3=x+3-5x what is the awnser
Nezavi [6.7K]
I know we aren’t suppose to promote other websites but photomath will scan these questions and give you an explanation quicker than live ppl answering them. Or tiger algebra or math papa all of these are great for solving algebra problems :)
8 0
2 years ago
Need an answer fast!!!
trapecia [35]

Answer:

The length of the line segment is of 5.9 units.

Step-by-step explanation:

Distance between two points:

Suppose that we have two points, (x_1,y_1) and (x_2,y_2). The distance between these two points is given by:

D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

How long is the line segment?

The distance between points P and Q. So

P(1,3), and Q(4,8).

D = \sqrt{(4-1)^2+(8-3)^2} = \sqrt{3^2 + 5^2} = \sqrt{34} = 5.9

The length of the line segment is of 5.9 units.

4 0
2 years ago
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