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Law Incorporation [45]
3 years ago
7

5x + 2y = 1 x - 2y = 5 Solve by substitution Thank you

Mathematics
1 answer:
quester [9]3 years ago
7 0

Answer:

The answer is ( 1 , -2) in point form or x = 1 , y = -2 in eqaution form.

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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Positive, negative, zero or undefined?
Liula [17]

Answer:

Negative.

Step-by-step explanation:

Hope this helps.

4 0
3 years ago
Read 2 more answers
Reduce to simplest form. - 3/5 + 1/3
Pani-rosa [81]

Answer: -4/15

Step-by-step explanation: To add these two fractions together,

we start by finding their <em>Least Common Denominator</em> (LCD).

Since our denominators of 5 and 3 have no factors in common,

our least common denominator is 5 · 3 or 15.

In order to get a denominator of 15 in each fraction,

we multiply top and bottom of the first fraction by 3

and top and bottom of the second fraction by 5.

That gives us -9/15 + 5/15 which simplifies to -4/15.

As your last step, make sure that the fraction

that you end up with doesn't reduce.

In this case, -4/15 does not reduce but watch out for this last step.

8 0
3 years ago
Which of the following high speed trains are traveling at a rate of 150 miles per hour? A: a train that travels 100 miles in 2/3
kondor19780726 [428]

Answer:

A)

Step-by-step explanation:

youjust have to do this:

100 miles-------------------2/3 hour

x-------------------------------3/3 hour or 1 hour

x=100x1/0.6666666667      2/3=0.6666666667

x= 150 miles

8 0
3 years ago
On a cloudy day, Yong Sun needed to know the height of a window in a building. Yong Sun positioned a mirror on the ground betwee
const2013 [10]
Its a ratio problem

height/34.15 = 1.89/.2288
4 0
4 years ago
Can someone please help me with 9 and 10
padilas [110]

Answer:for number one its q and r and then its w,x,y for the second one

Step-by-step explanation:

hope its helps

7 0
3 years ago
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