3x+y=4 2x-4y=7

3x+y=4 2x-4y=7

The rate of a chemical reaction increases under the conditions (1)to(3). Explain the reason. (1) Concentration of the reactants is high. (2)Temperature of the reaction system is high. (3)Catalysts...

how would you Explain the opposing trends of ionization energies and atomic radii in the alkali group of the periodic table.

write a few sentences relating that structure or process to one of the right characteristics of life. be sure to mention which characteristic of life is supported by that structure or process.and...

Plz anyone who can help that would really be appreciated. :))

Alyssa said the 6/8 and 9/12 are not equivalent because there is no whole number you can multiply both parts of 6/8 by to get 9/12. Is she correct? Explain.

a triangle has sides with lengths in centimeters that are consecutive even integers. Find the lengths if the perimeter is 186 cm

A sequence xn is said to be dominated by a sequence yn if xn ≤ yn for each n. Show that, if so 1. inf xn ≤ inf yn, 2. sup xn ≤ sup yn, 3. lim inf xn...

Are the complex fractions the quantity x-squared minus x minus 20 over 4 all over the quantity x minus 5 over 10 and the quantity x-squared minus x minus 20 over x minus 5 all over the quantity 4...

The whole problem is this: 1 = 1 + 1 Solve R R1 ...

Using complete sentences, explain how to find the equation of the line, in standard form and slope-intercept form, passing through (-1, 5) and (1, 9). Also compare the benefits of writing an equation...

Show all work to simplify 1 over x plus 3 over 8=1 over 2. Use complete sentences to explain how to simplify this expression.

You are a shopkeeper, a man comes in and steals $50 without your attention. The man then comes back and buys $40 worth of merchandise, and gets $10 in change. How much did you lose?

Using arc length formula (s=r*Θ), it is to my understanding the problem would become [s=1260*(π/6)] with 1260 as the radius and (π/6) as the central angle/theta. Simplified out this should come...

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How do you know if you need to ungroup a ten for ones when subtracting? My son came home from school and did all of his math homework except for the stretch your thinking part...I don't know...

I really don't understand the distributive property of multiplication and addition. We are learning about it in school (grade 7) but I just don't understand how it works or how to use it properly...

Four friends get together. One tells the truth all the time. One lies all the time. One tells the truth on odd-numbered days and lies on even-numbered days. One tells the truth on even-numbered...

there are 3 types of juice in the refrigerator: apple, orange, and grape. There are 4 bottles of each type of juice. Ivy is going to choose 3 bottles of juice at random. Part...

Hi. I have a hard time with Algebra 1/Algebra 2 Factorization Problems. Can someone explain them in-depth and offer some examples? Clarify the mystery for me. Thanks!