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3 years ago

Determine the value for x

Mathematics

1 answer:

Grace [21]3 years ago

3 0

Answer:

5 im pretty sure

Step-by-step explanation:

if im right, can you mark me brainliest?

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What is the value of X 1/2(9-2x)=X+1

Sladkaya [172]

First distribute 1/2 into (9-2x) which would give you:
4.5-1x= x+1
then you add 1x to each side and you will get:
4.5=2x+1
then you subtract 1 from each side and you will get:
3.5=2x
finally divide 3.5 by 2 and you will get:
x = 1.75

Hope this helps

4 0

4 years ago

Which is a solution to (x – 3)(x + 9) = –27? x = –9 x = –3 x = 0 x = 6

likoan [24]

Answer:

x = 0

Step-by-step explanation:

Since the product is not equal zero, we need to multiply both parenthesis first:

$(x-3)(x+9) =-27$

$x*x+x*9+(-3)*x+(-3)*9=27$

$x^2+9x-3x-27=27$

$x^2+6x-27=27$

Add 27 from both sides:

$x^2+6x-27+27=-27+27$

$x^2-6x=0$

Factor $x$ out:

$x(x+6)=0$

Apply the zero product:

$x=0,x+6=0$

$x=0,x=-6$

The solutions of the equation are $x=0$ and $x=-6$ .

We can conclude that the correct answer is x = 0.

7 0

3 years ago

What is 60*4= Tens= Tens=

rusak2 [61]

To do multiplication, what you must do is multiply each number from right to left and add.
For example
60 * 4
4 * 0 = 0
6 * 4 = 24
The result is
240
answer
60 * 4 = 240

3 0

4 years ago

Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 15. Together they char

Naya [18.7K]

Answer: Hourly rate for first mechanic: $65

Hourly rate for second mechanic: $70

Step-by-step explanation:

Let x be the hourly rate for first mechanic and y be the hourly rate for second mechanic.

The first mechanic worked for 10 hours, and the second mechanic worked for 15.

So first mechanic will charge for 10 hours = 10x

Second mechanic will charge for 15 hours =15x

Together they charged a total of $1700.