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2 years ago

This is a substitution problem

Mathematics

2 answers:

mrs_skeptik [129]2 years ago

6 0

They consists of equations and unknown variables. There are 4 PCs and 8 Mac in the room

<h3>System of equation</h3>

They consists of equations and unknown variables

Let the number of PCs be x

Let the number of Mac be y

If Mke has 12 computers, then;

x + y = 12

If there are two Macs for every PC in his classroom, then;

y = 2x

Substitute

x + 2x = 12

3x = 12

x = 4

Recall y = 2x

y = 2(4)

y = 8

There are 4 PCs and 8 Mac in the room

Learn more on system of equations here; brainly.com/question/14323743

#SPJ2

Ivanshal [37]2 years ago

6 0

Answer:4 PCs and 8 Macs

Step-by-step explanation:

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50 points!! Please help!! Will mark brainliest and random answers will be reported

Triss [41]

Answer:

In the above figure

both the sides are equal then angle between them will also equal

so,

(2x+2) + (2x+2) + (3x+1) = 180

7x + 5 = 180

7x = 175 

x = 175/7

x = 25

hence angle will (25 *2) +2 =52

other angle is( 25*3)+1 = 76

hope it helps and your day will fine

6 0

2 years ago

4. Find the solution to the equation below. please finish this problem

velikii [3]

Answer:

w = 12

Step-by-step explanation:

We are given the equation:

$\displaystyle{\dfrac{w-2}{4} = \dfrac{2w+1}{10}}$

First, clear out the denominators by multiplying both sides by LCM. In this scenario, our LCM is 40. Thus, multiply both sides by 40:

$\displaystyle{\dfrac{w-2}{4} \cdot 40= \dfrac{2w+1}{10} \cdot 40}$

Simplify the expressions/equations:

$\displaystyle{(w-2)\cdot 10= (2w+1)\cdot 4}\\\\\displaystyle{10w-20= 8w+4}$

Isolate w-variable:

$\displaystyle{10w-20= 8w+4}\\\\\displaystyle{10w-8w=4+20}\\\\\displaystyle{2w=24}\\\\\displaystyle{w=12}$

Hence, the solution is w = 12

If you have any questions regarding my answer or explanation, do not hesitate to ask away in comment!

4 0

1 year ago

HELP PLEASE. Find x & y round answer to the nearest tenth!

trapecia [35]

Answer:

y=18.2 x=5.6

Step-by-step explanation:

sin 73 = y/19

19 sin 73 = y

cos 73 = x/19

19 cos 73 = x

3 0

3 years ago

What is this 5/8 × 1/2

larisa86 [58]

The answer is 5/16 you're welcome
5/8 x 1/2 = 5/16

4 0

3 years ago

Read 2 more answers

The area of the right triangle shown is 24 square feet. Which equations can be used to find the lengths of the legs of the trian

Yuri [45]

Not sure, but the areas of a triangle is BH/2 so the dimensions should be 8 and 6 then 10.
8 x 6 = 48
48/2 = 24
Maybe that can help with the equation

4 0

3 years ago

Read 2 more answers