x+y=5
-x -x

Equals:

y=-x+5

Now you have:

y=-x+5
x-y=1

Insert -x+5 into y

x-x+5=1

Combine like terms

2x+5=1

Subtract 5.

2x=-4

Divide 2.

Answer: x=-2

8 0

3 years ago

The equation of the line of best fit of a scatter plot is

Verizon [17]

Answer:

-6

Step-by-step explanation:

y intercept is -6 because formula of gradient is y=mx+c.......c is the y intercept

5 0

3 years ago

The weather forecast says there’s 70% probability of rain tomorrow. What are the odds against rain

krok68 [10]

Answer:

30%

Step-by-step explanation:

Key skills needed: Probability

1) There is a 70% chance of rain.

2) We need to find the chances against rain.

3) To do this, we need to use the fact that

70% + x = 100% (Since all the probabilities add up to 1 or 100%)

4) If you subtract 70% from both sides, x = 30%

5) This means the probability against rain is 30%.

Hope you understood and have a nice day!! :D

5 0

3 years ago