Help! I’m taking a test and don’t get this Solve x/4-2=2

Mathematics

1 answer:

Xelga [282]3 years ago

7 0

Answer:

x is 16

Step-by-step explanation:

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Anyone know how to do this

blsea [12.9K]

Answer:

A B C D E MIGHT BE UR ANSWER

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3 years ago

1. Use the number line to help you decide which statement is true.

Mashutka [201]

It’s the last one because 1/2 is way more then 2/5 so I think it would be 1/5<1/2 so the last one

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3 years ago

For what fraction of a day will a 12-hour digital clock that shows only the hours and minutes display at least one 5 or 6

Brums [2.3K]

Answer: 4/9

Step-by-step explanation:

Find out combinations without 5 or 6.

Minutes with 5 or 6: 05,06,15,16,25,26,35,36,45,46,50–59. It 10+10=20 minutes per hour. And 40 minutes without 5 or 6.

Hours with 5 or 6: 5 and 6. Without 5 and 6 is 0,1,2,3,4,7,8,9,10,11 (10 hours).

Total time without 5 and 6 is 10*40minutes=400 minutes.

Time with 5 or 6 is 12*60–400=320 minutes.

Fraction of a day: 320/(12*60)=4/9=0.44444

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3 years ago

How can you recognize whether a real-world problem should be represented by an equation or inequality?

VladimirAG [237]

An equation:
It is used to express exact values.
Therefore, we will use an equation when when know that the quantity given is strictly equal to a given value.
Examples:
1- Price of a kilo of apples is $2
This is translated as ........> cost of 1 kilo = $2
2- The length of a ruler is 30 cm
This is translated as ......> length = 30 cm

An inequality:
It is used to show relation or compare between a quantity and a value. Therefore, we use it when we find keywords as "at least, at most, greater than, less than, ..... etc"
Example:
1- The distance between two cities is at least 20 miles.
This means that the distance can be 20 miles or more
This is translated as:
distance ≥ 20 miles

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4 years ago

What is the solution to the system? <br><br> (___,___)

Rina8888 [55]

For the first line we have a slope of (y2-y1)/(x2-x1)

(2--2)/(1--1)=4/2=2 so we have:

y=2x+b, now solve for b with either of the points, I'll use: (1,2)

2=2(1)+b

b=0 so the first line is:

y=2x

Now the second line:

(1-10)/(4--2)=-9/6=-3/2 so far then we have:

y=-3x/2+b, using point (4,1) we solve for b...

1=-3(4)/2+b

1=-6+b

b=7 so

y=-3x/2+7 or more neatly...

y=(-3x+14)/2

...

The solution occurs when both the x and y coordinates for each are equal, so we can say y=y, and use our two line equations...

2x=(-3x+14)/2

4x=-3x+14

7x=14

x=2, and using y=2x we see that:

y=2(2)=4, so the solution occurs at the point:

(2,4)

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3 years ago