1 year ago

Evaluate 5(x - 1) - 2 when x = 3

Mathematics

1 answer:

Elan Coil [88]1 year ago

4 0

Answer:

Step-by-step explanation:

Given algebraic expression:

5(x - 1) - 2

To:

Evaluate this expression using x = 3

Solution:

5(x - 1) - 2

Evaluate by plugging x = 3 to this expression:

5(3-1)-2

Simplify using PEMDAS.

5(2)-2
10-2
8

We can conclude:

By evaluating x = 3 to the given expression,the answer will be 8.

You might be interested in

This soda can is going to be made from aluminum. How many square centimeters of aluminum are needed if the radius r = 3.5 cm and

kari74 [83]

208.81 square centimeters of aluminium are needed

Solution:

Given that,

Radius = 3.5 cm

Height = 6 cm

We have to find the square centimeters of aluminum needed

So we have to find the surface area of cylinder

The surface area of cylinder is given by formula:

$A = 2 \pi r(h+r)$

Where "r" is the radius and "h" is the height of cylinder

Substituting the values we get,

$A = 2 \times 3.14 \times 3.5 \times (6+3.5)\\\\A = 21.98 \times 9.5\\\\A = 208.81$

Thus 208.81 square centimeters of aluminium are needed

8 0

2 years ago

Alexis is making bread dough.The recipe requires 3/4 cup of flour and 1 2/5 teaspoon of salt. To maintain the ratio,how much sal

tekilochka [14]

Answer:

16/5 teaspoons

Step-by-step explanation:

1/4 cups of flour uses 4/15 teaspoon so 4/15 x 4 is 16/5

7 0

3 years ago

8ft=how many yards and feet 68in=how many ft and in 3,520y=how many miles

Nataly_w [17]

8ft = 2yrds and 2 feet
68in= 5ft and 8in
I don't know the last one XD

3 0

3 years ago

Which equations have the same value of x as 3/5 (30x-15) = 72? Select three options.

AfilCa [17]

I got:
c) 18x-9=72
d) 3(6x-3)=72
e) x=4.5
If you need any explanations for the answers, please tell me!

7 0

3 years ago

Read 2 more answers

The number of wrecks at a certain intersection varies directly as the number of cars that travel through the intersection. If th

Agata [3.3K]

Answer:

D. 245.

Step-by-step explanation:

If you take 1,085 cars and divide it by 31, and then take that answer and multiply it by 7 you get 245.

6 0

2 years ago