Algebra 2 system of equation #2

Mathematics

1 answer:

Hunter-Best [27]4 years ago

7 0

X + y = 2 so y = 2 -x
x - y = -8 so y = x + 8

2 -x = x + 8
2x = -6
x = -3

y = -3 + 8 = 5

answer
x = -3 and y = 5

You might be interested in

What is the greatest common factor of 6 and 9

Darina [25.2K]

Factors of 6 = 1, 2, 3, 6
factors of 9 = 1, 3, 9
gcf = 3

4 0

3 years ago

Read 2 more answers

A recent survey determined the IQ score of a random selection of residents of Alaska. The accompanying relative frequency distri

ycow [4]

Answer:

The class width is 20

Step-by-step explanation:

In a frequency or a relative frequency distribution the class width is calculated as the difference between the lower or upper class limits of consecutive classes. A point to note is that all the categories or classes usually have the same class width.

We use the first two classes to calculate the class width by using their respective upper limits;

Class width = 89 - 69

Class width = 20

4 0

3 years ago

Solve the proportion:

Serjik [45]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is 2/5-1/3 fractions

patriot [66]

You have to make the denominators (bottom numbers) the same via multiplication, it's best to do it to the first number they meet at. that would be fifteen (15)
5×3=15
3×5=15
you then have to multiply the numerators by the respective numbers.
2×3=6
1×5=5
you then subtract the numerators normally
6-5=1
slap back on the denominator
1/15
there's your answer.
(the number you multiply them by isn't the other denominator, it just happens to be the denominators for this equation)

8 0

4 years ago

5 Gretchen borrowed $50 from her parents for 3 months. They charged her 14% interest. How much does she need to pay her parents

sergij07 [2.7K]

Step-by-step explanation:

simple interest = principal×rate×time

S.I = $50×(14÷100)×3

S.I=$50×0.14×3

S.I=$21

Amount= principal + simple interest

Amount = $50+$21

Amount = $71

6 0

3 years ago