All categories

3 years ago

Find the sum or difference and reduce: (5x-20)/4 Please solve

Mathematics

1 answer:

Paladinen [302]3 years ago

7 0

Either 4 times negative 20 and 4 times positive 5 x so....20x-16 orrrr 20x-80 (hope one of these help)

You might be interested in

Solve for x using cross multiplication 2x + 1 = x+5 2x + 1 3 x = [?]

jonny [76]

Step-by-step explanation:

$\frac{2x + 1}{3} = \frac{x + 5}{2} \\ 2(2x + 1) = 3(x + 5) \\ \: \: \: \: 4x + 2 = 3x + 15 \\ 4x - 3x = 15 - 2 \: \\ \: \: \: x = 13$

8 0

2 years ago

Respuesta de (-0.5)²

Vladimir79 [104]

Answer:

0.25

Step-by-step explanation:

we have

$(-0.5)^2$

we know that

$-0.5=-\frac{1}{2}$

substitute

$(-\frac{1}{2})^2=(-\frac{1}{2})(-\frac{1}{2})$

Remember that

$(-1)(-1)=1\\(-1)(1)=(-1)$

$(-\frac{1}{2})(-\frac{1}{2})=\frac{1}{4}=0.25$

5 0

2 years ago

DF bisects EDG Find FG. The diagram is not to scale. A.15 B.14 C.19 D. 28

Ahat [919]

Answer:

○ b. $14$

Step-by-step explanation:

Since DF is a segment bisector, set both expressions equal to each other:

3n - 4 = n + 8

-3n - 3n

__________

−4 = −2n + 8

-8 - 8

_________

−12 = −2n

__ ___

−2 −2

$6 = n$ [Plug this back into both expressions above to get the value of 14]; $14 = FG; 14 = EF$

I am joyous to assist you anytime.

6 0

2 years ago

7.Solve the following system of equations:

Nadusha1986 [10]

The answer whould be c or b but I can be a it’s o o o I know it is A

5 0

2 years ago

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1 and the given zeros for

timama [110]

The general form of a polynomial is: x² + bx + c = 0. Substituting the roots,

3² + b(3) + c = 0
3b + c = -9 --> eqn 1

(5 + √5)² + (5 +√5)(b) + c = 0
(5+√5)b + c = -30-10√5 --> eqn 2

Solving both equations simultaneously by subtracting eqn 2 from eqn 1,
(-2 - √5)b = 21 + 10√5
b = -8 - √5

Using eqn 1,
3(-8 - √5) + c = -9
-24 - 3√5 + c = -9
c = -9 + 24 + 3√5
c = 15 + 3√5

Hence, the polynomial is: f(x) = x² + (-8 - √5)x + (15 + 3√5).

7 0

3 years ago