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Oliga [24]
4 years ago
10

Ways the answer to 12x-3y=3 and y=4x-1

Mathematics
1 answer:
Ede4ka [16]4 years ago
4 0
Well first you want to be trying to solve for the same variable in both problems. Lets solve for Y. 
This means we must make both equations say " Y="

first we subtract 12x from both sides of "12x-3y=3"  which leaves us with
-3y=3-12x and y=4x-1.

you are basically going to merge the 2 problems by adding "1" to both problems and then subtracting "4x" from both as well as subtracting "y" from both. This gets rid of a variable in one problem and essentially puts in to the other in the process.

This leaves you with -4y=4-16x
Can you solve from there?
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4 1/2÷3/4 explanation plz I need help
notsponge [240]
To find the answer you first have to turn 4 1/2 a mixed number into an improper fraction. To do this you must multiply the denominator with the whole number to get 8 after add 1 to get 9. to finish off the improper fraction put the 9 as the numerator and keep the denominator of 2. After this you will have 9/2 ÷ 3/4. Remember Keep Change Flip. this means keep 9/2 change the sign from division to multiplication and flip 3/4 to 4/3. After this you will have 9/2 x 3/4. Now multiply the numerators and multiply the denominators. 9x4 is 36 and 2x3 is 6 you now have 36/6. Lucky for you 36 goes into 6, 6 times. So the answer is 6. If you have anymore questions please dont hesitate to ask :) Hope this helps. If you are having trouble look at this link on youtube about dividing fractions. https://www.youtube.com/watch?v=uMz4Hause-o
7 0
3 years ago
44 markers cost $7.04 Which equation would help determine the cost of 7 markers?
kipiarov [429]
You can try to divide 7 from $7.04
5 0
4 years ago
Read 2 more answers
What is the image of point (8,-4) under the rotation R90° about the origin?
mr Goodwill [35]

Answer:

D). (-4,-8)​

Step-by-step explanation:

An image at (8,-4) if rotated at an angle of 90° wipl have another location.

First of all, an image at (8,-4) is in the fourth quadrant, and if it's to rotate clockwise at 90° iths supposed to be in the third quadrant.

And in the third quadrant both x and y is negative.

So the new position is at (-4,-8)​

7 0
3 years ago
(7 × 10-5) × 0.0007
Andrews [41]
First we do what’s in the parentheses.
7 • 10 - 5 = 70 - 5 = 65
Then we do exponents. We don’t have any so we skip this step.
Then we do multiplication and division.
65 • 0.0007 = 0.0455
We don’t have any addition or subtraction so we skip this step.
The solution is 0.0455.
7 0
4 years ago
AD= in<br> Help me please, stuck on this question. Thankss
Hatshy [7]

Using the cosine ratio, the value of AD in the diagram is: 2√3π in.

<h3>How to Apply the Cosine Ratio?</h3>

If we have the following given in a right triangle like triangle ADC in the diagram:

AC = 4π (hypotenuse)

AD = ? (adjacent side)

The cosine ratio, CAH would be applied, which is:

Cos 30 = adjacent/hypotenuse

Cos 30 = AD/4π

AD = cos 30 × 4π = √3/2 × 4π [cos 30 = √3/2]

AD = 2√3π in.

Learn more about the cosine ratio on:

brainly.com/question/15793827

#SPJ1

6 0
2 years ago
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