how do i solve equations with fractions in them?

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Explanation:

Subtract the second equation from the first one

[tex]\ \ \ \ 3x+3y-5z = 4 \ \ ... \text{ eq 1}\\-(4x-4y+z = -1) \ \ ... \text{ eq 2}\\---------\\\ \ -x+7y-6z = 5[/tex]

Let's call that result equation 4.

Now focus on equation 3 and equation 4

equation 3 is   -x+7y-6z = 2

equation 4 is   -x+7y-6z = 5

Note how the left hand sides are identical, but the right hand sides are different. This means that we have an inconsistent system with no solutions. No matter what numbers we pick for x,y,z, there is no way to make all three given original equations to be true.

Answer:

171/56

Step-by-step explanation:

convert the mix number to an improper fraction then calculate your income

Answer:

I think it would be 8 1/7  if im wrong im srry!

Step-by-step explanation:

Answer:

300

Step-by-step explanation:

Step 1:

460/115 = x/75         Equation

Step 2:

115x = 34,500       Multiply

Step 3:

x = 34,500 ÷ 115         Divide

Answer:

x = 300

Hope This Helps :)

Answer:

True

Step-by-step explanation:

5 times 3 equal 15. 15 minus 3 equals 12

Answer:

1114.027

Step-by-step explanation:

Answer:

Solution : Number . In standard form we solve power of 10. Therefore, in standard form is 0.3643

Step-by-step explanation:

hope it helps pls mark as brainliest

Answer:

0.3643

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

2*3=6

I did the test

Answer:

t ≤ 15

Step-by-step explanation:

Let t = tables

6 * 15 + 2* t ≤ 120

90 + 2t ≤ 120

2t ≤ 30

t ≤ 15

Answer:   (0,-1) (4,4)

Plz mark brainliest:)

Answer:

The top one is (-4,4)

and the other one is (0.-1)

hope this helps :)

Answer:

7.82 = 391

50

= 741

50

as a fraction

To convert the decimal 7.82 to a fraction, just follow these steps:

Step 1: Write down the number as a fraction of one:

7.82 = 7.82

1

Step 2: Multiply both top and bottom by 10 for every number after the decimal point:

As we have 2 numbers after the decimal point, we multiply both numerator and denominator by 100. So,

7.82

1

= (7.82 × 100)

(1 × 100)

= 782

100

.

Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD(782,100) = 2. So,

(782÷2)

(100÷2)

= 391

50

when reduced to the simplest form.

As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 782

100

is also equal to 741

50

when expressed as a mixed number.

Step-by-step explanation:

Answer:

7.82

20

Step-by-step explanation:

hope this helps

Answer:

x<−6

Step-by-step explanation:

Let's solve your inequality step-by-step.

−2.1x+2.9>15.5

Step 1: Subtract 2.9 from both sides.

−2.1x+2.9−2.9>15.5−2.9

−2.1x>12.6

Step 2: Divide both sides by -2.1.

−2.1x−2.1>12.6−2.1

x<−6

moan and groan a lot ghjiouygbnjkh

Answer:

10 Inches

Step-by-step explanation:

Remember the radius is always half the diameter. So, r * 2 = d. Plug those in...

5 * 2 = 10.

Therefore, the answer is 10 inches.

Answer:

0.18

Step-by-step explanation:

9/50 is the same as 18/100, we know this because if we multiply both 9 and 50 by 2, it gives us 18/100. 18/100 can be turned into the decimal, 0.18, so your answer is 0.18

I hope this helps :)

Answer:

C

Step-by-step explanation:

Answer:

-111

Step-by-step explanation:

Answer:

Step-by-step explanation:

-4x+2y=8

2y=8+4x

y=[tex]\frac{8+4x}{2}[/tex]

y=[tex]\frac{2(4+2x)}{2}[/tex]

y=4+2x  

proved

Answer:

$5.50

Step-by-step explanation:

Answer:

Your answer is:

Simplify:

Exact Form: -55/3

Decimal: 18.3

Mixed Fraction: -18 1/3

Step-by-step explanation:

Hope this helped : )

Answer:

12*3/12*7= 3/7

Step-by-step explanation:

make it braintliest please

Answer:

w = p/2 - l

Step-by-step explanation:

Hope this helps!!

Answer:

W=(P-2L)/2

Step-by-step explanation:

W=(P-2L)

Then what ever number you get divide by 2

To get the width

Answer:

Part A: 15.55

Part B: 0.45

Step-by-step explanation:

Part A:

The giraffe is already 14.29 so when you add the length of its tongue (equation 14.29 + 1.26) then that would equal 15.55

Part B:

The giraffe is trying to eat some leaves that are 16 feet above the ground so you would subtract 16 - 15.55 to see how much farther it needs to reach, so the answer is 0.45.

(This is what I got, I apologize if I get this wrong. If I messed up on something, someone please correct me, thank you and have a nice day!)

Answer:

Part A:   It can reach 15.55 feet.

Part B:   Need to reach 0.45 feet farther to get to the leaves of a 16 feet tree.

Step-by-step explanation:

giraffe + tongue = reach

      14.29 + 1.26 = 15.55

tree height - giraffe reach = extra distance

16 - 15.55 = 0.45 feet

Answer:

73

Step-by-step explanation:

Answer:73

Step-by-step explanation:

Answer: $36.00

For every extra pizza, it will cost eight dollars more. So, the fourth pizza will cost $36.00.

Plz mark brainliest:)

Answer:

1. {1/20} 2. {7/36} 3. {1/2} 4. {8/21} 5. {4/15}

6.{1/6} 7.{ 20} 8. {15} 9. {1.2} 10. {1.25}

Step-by-step explanation:

Answer:

106 meters

Step-by-step explanation:

50x2=100 100+6=106

Answer: 22

Step-by-step explanation:

50=2x+6

Add negative 6 to both sides (50+ -6) and (6+-6)

Then divide both sides by 2 (2x/2) and (44/2)

That is how you properly solve this 2 step equation

Answer:

impossible

unlikely

neither unlikely nor likely

likely

certain

Step-by-step explanation:

Answer:

You need to find the equations for each scenario and set them = to each other

Step-by-step explanation:

A) S = 5t + 5

B) S = 7t + 2

Now set them = and solve for t

5t + 5 = 7t + 2

3 = 2t

t = 3/2 of an hr

To check plug in 3/2 into both equations and you should get same answer.

Hope this helps and never stop striving to learn more!

Answer:

1 is a competition, 2 is protection, 5 is division, and 8 is solution.

Step-by-step explanation:

hope these are all correct and you ace this!