All categories

3 years ago

Evaluate the expression 5x-3x for x=2

Mathematics

2 answers:

balandron [24]3 years ago

7 0

Answer:

Step-by-step explanation:

5x-3x

We can simplify this expression

Now we can substitute x=2

2(2)

dimulka [17.4K]3 years ago

5 0

x is a placeholder for a number. Think of it as a box. Inside the box, we're told that 2 is there.

So we'll replace every x with 2 and use PEMDAS

5*x - 3*x = 5*2 - 3*2 = 10 - 6 = 4

After simplifying, the answer is 4.

You might be interested in

. Jessica went to the grocery store and purchased a box of cereal for $3.75, milk for $1.50, and bread for $2.25. She paid with

puteri [66]

$3.75 - cereal
$1.50 - milk
$2.25 - bread
—————————
$7.50

$20.00
- 7.50
—————
$ 12.50

She received $12.50 back

4 0

3 years ago

A school is selling tickets to their Spring theater production. Student tickets cost $6 each and non-student tickets cost $9 eac

I am Lyosha [343]

Answer:

x=137

y=525-137

y=388

Step-by-step explanation:

Let the student tickets be x

Let the geral Admission tickets be y

x+y=525

y=525-x

4x+6y=2876 (subsitute for y)

4x+6(525-x)=2876

4x+3150-6x=2876

-2x=-274

x=137

y=525-137

y=388

Hence, about 137 childern tickets were sold and 388 gernal admission tickets were sold.

Paul.

3 0

3 years ago

Read 2 more answers

If Josue's TV costs $995 and he could save $80 per month, how many months would it

Iteru [2.4K]

It would take josue 13 months to save for the TV

7 0

3 years ago

Someone please help !! picture shown

Aleks [24]

Correct me if im wrong but the answer is (B) hope this helps!

5 0

3 years ago

Read 2 more answers

An electrician charges $40 to come to your house.She also charges $55for each that she works. The electrician charges you total

shusha [124]

Answer:

Step-by-step explanation:

First, write an equation. 55x+40=190.

X represents the hours the electrician works. The 55 represents the $55 that she charges for each hour she works. The +40 for the $40 that was the price just to come to your house. The 190 is the total cost. Now, solve that equation.

55x+40=190

55x=150

x=2.72727272...

So the answer is 2.727 hours. It can be rounded as needed or turned into a decimal, 2 8/11.

5 0

3 years ago