How can I learn elimination better?

Answers

Answer 1

Answer: Best thing I think you should do is to go to your teacher for clarification of any doubts and practise as many example and show it to your teacher or anyone who knows it better for approval.

To be able to eliminate, you have to make a variable have the same COEFFICIENTS but OPPOSITE SIGNS. Then solve for the other ( non eliminated) variable. After that, substitute its value to the original equation and solve now for the eliminated variable.

Related Questions

On a map of Alabama, one inch is equivalent to 100 miles. If the distance between two towns is 0.5 inches on the map, what is the actual distance between the towns?
Hudson bought snacks for his team's practice. he bought a bag of apples for $1.59 and a 10-pack of juice bottles. the total cost before tax was $7.39. write and solve an equation which can be used to determine xx, how much each bottle of juice cost
A book is marked down by 28 percent from an original price of $19.50. What is the new price?
Equation of (0,2) , (2,5)
The perimeter of a rectangle is 70 cm. If its length is decreased by 5 cm and its width is increased by 5 cm, its area will increase by 50 cm2. Find the length and the width of the original rectangle.

84 of %300. i somehow got 24 but the answer was something like 252, i dont really get how. can you help?

Answers

Answer:

252

Step-by-step explanation:

Of means multiply

84 % * 300

Change to decimal form

.84 * 300

252

Step-by-step explanation:

You need to set up a proportion. Percents always over percents, so our first fraction would be $(84)/(100)$ , which just means that out of 100%, we are given 84. We need to find a variable to solve for: x. We need to find the number that is 84% of 300, which means that 300 is 100%. Knowing this, it would be in the denominator, since both 100 and 300 are 100% of something. This would give us the fraction $(84)/(100) = (x)/(300)$ . I like to use the cross-multiply method, which just means you multiply by a diagonal and then divide by what's left. This would give us 300 x 84 = 25,200/100 = 252. Hope this helps!

Reciprocal of 0.002894