All categories

3 years ago

3x - 6 + 7x-2x ; x = 4 Need help

Mathematics

2 answers:

dangina [55]3 years ago

7 0

Answer:

Step-by-step explanation:

Step 1:

3x - 6 + 7x - 2x

Step 2:

12 - 6 + 28 - 8

Step 3:

6 + 28 - 8

Step 4:

6 + 20

Answer:

Hope This Helps :)

My name is Ann [436]3 years ago

4 0

Answer:

Step-by-step explanation:

We are told that x=4, which means you will substitute 4 in for every x.

So for 3x, you would do 3(4) because the x = 4. Just substitute 4 in for the x.

3(4) - 6 + 7(4) - 2(4)

Now, you could put that in a calculator or solve it on paper. :) If you're doing it on paper, remember PEMDAS.

12 - 6 + 28 - 8

= 26

You might be interested in

What is the quadratic function that is created with roots at 2 and 4 and a vertex at (3, 1)?

Arada [10]

Hello,

y=k*(x-2)(x-4)
and is passing throught (3,1)
==>1=k*(3-2)(3-4)==>k=-1

y=-(x-2)(x-4) is an answer

4 0

3 years ago

The length of FH is 9 cm. What is the length of GK? SHOW STEPS AWARDING BRAINLY

DanielleElmas [232]

Answer:

GK = 9cm

Step-by-step explanation:

Length of diagonal FH = 9 cm

By the property of a rectangle,

"Lengths of the diagonals of a rectangle measure the same"

FH = GK

Therefore, GK = FH = 9cm

7 0

3 years ago

How long does a car traveling at 70 mph take to travel 88 miles, in hours

dybincka [34]

So,

Obviously, the car will travel 70 miles in one hour. So after one hour, the car will have traveled 70 miles. That leaves 18 miles.

The time it will take for the car to go another 18 miles will be 18 divided by 70.
$\frac{18}{70}$

Simplify.
$\frac{2*3*3}{2*5*7}$
$\frac{3*3}{5*7}$
$\frac{9}{35}$

Divide.
≈ 0.25714

So a car traveling at 70 mph will take approximately 1.25714 hours or 1.26 hours to travel 88 miles.

7 0

3 years ago

Evaluate. {3−[−4−(6+2)]}⋅(−5) A−75 B−57 C−15 D−9

Nady [450]

Step-by-step explanation:

please mark me as brainlest