All categories

3 years ago

What is the value of the expression below 20 + 8 - 4 - 4

Mathematics

1 answer:

seraphim [82]3 years ago

5 0

Answer:

Step-by-step explanation:

You are trying to find the value. To do so, simply simplify the expression. Combine the terms:

20 + 8 - 4 - 4

(20 + 8) + (-4 - 4)

28 + (-8) = 28 - 8 = 20

20 is your answer.

You might be interested in

How to solve 2x(x+3)=2x^2+15

Travka [436]

Answer: x = 5/2 = 2.5

Step-by-step explanation:

Given expression

2x (x + 3) = 2x² + 15

Expand parentheses and apply the distributive property

2x · x + 2x · 3 = 2x² + 15

2x² + 6x = 2x² + 15

Subtract 2x² on both sides

2x² + 6x - 2x² = 2x² + 15 - 2x²

6x = 15

Divide 6 on both sides

6x / 6 = 15 / 6

x = 15/6

$\boxed{x=\frac{5}{2} }$

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

Read 2 more answers

What number id 0.4% is 20

d1i1m1o1n [39]

0.4% x 20 = 0.08

Hope helps!-Aparri

6 0

3 years ago

F = 1.8C + 32 what is c

zepelin [54]

Step-by-step explanation:

right.

and therefore c is in this case the name of the variable in the equation (or function).

add on.

ah, do you mean (and does this strange problem description mean) that you want the reverse formula : to get C out of F ?

in that case

F = 1.8c + 32 = 9/5 × c + 32

F - 32 = 9/5 × c

5/9 × (F - 32) = c

c = 5/9 × (F - 32)

that's it.

5 0

2 years ago

Janae drew point A located at (-2,5), and point located at (6, -1). What is the x-coordinate of point B that bisects AC?

Sphinxa [80]

Answer:

The x coordinate is 2

Step-by-step explanation:

Given

$A = (-2,5)$

$C = (6,-1)$

Required

Determine the x coordinate of B

Since B is the bisector of AC, then B is the midpoint and will be calculated using;

$B(x,y) = (\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Considering the x coordinates alone;

$x = \frac{x_1 + x_2}{2}$

Where

$(x_1,y_1) = (-2,5)$ and $(x_2,y_2) = (6,-1)$

Substitute values for x1 and x2

$x = \frac{-2 + 6}{2}$

$x = \frac{4}{2}$

$x = 2$

Hence;

The x coordinate is 2

6 0

3 years ago

Write two fractions that are equivalent to the given fraction. 5/7

Reil [10]

Answer:

10/14 25/35

Step-by-step explanation:

For the first one multiply times 2

For the second one multiply times 5

4 0

3 years ago