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saul85 [17]
3 years ago
9

What would the solution be for x x-15=y

Mathematics
1 answer:
Alja [10]3 years ago
5 0

if you're asking us to solve for x

remember tat you can do anything to an equation as long as you do it to both sides

x-15=y

add 15 to both sides

x+15-15=y+15

x+0=y+15

x=y+15

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Three of nine softball players play outfield.what fraction of the players play outfield? Write the answer as a reduced fraction
almond37 [142]
Because 3 players play in the outfield and there are 9 players all together, you would write the fraction as 3/9. To reduce, you would get 1/3. (Dividing numerator and denominator by 3 because it is a common denominator).
6 0
4 years ago
the distance traveled at a constant speed is directly proportional to the timeof travel olivia traveled 306 milesin 8.5 hours,ho
Andrews [41]
306 / 8.5 = 36 miles per hr

at 9.1 hrs....
36 * 9.1 = 327.6 miles <==

or this way...

306 / 8.5 = x / 9.1
cross multiply
8.5x = 2784.6
x = 2784.6 / 8.5
x = 327.6 miles
7 0
4 years ago
SYSTEM OF LINNEAR EQUATIONS!
GREYUIT [131]

Answer:

Step-by-step explanation:

2x+3y=15

x-3y=18

------------------

x=3y+18

2(3y+18)+3y=15

6y+36+3y=15

9y=15-36

9y=-21

y=-21/9

simplify

y=-7/3

x-3(-7/3)=18

x+7=18

x=18-7

x=11

Answer: x=11, y=-7/3. (11, -7/3).

---------------------------------------------

2x+3y=20

-2x+y=20

----------------

4y=40

y=40/4

y=10

2x+3(10)=20

2x+30=20

2x=20-30

2x=-10

x=-10/2

x=-5

Answer: x=-5, y=10. (-5, 10).

-------------------------------------------

3x-4y=-5

-10x+4y=12

--------------------

-7x=7

x=7/-7

x=-1

3(-1)-4y=-5

-3-4y=-5

4y=-3-(-5)

4y=-3+5

4y=2

y=2/4

simplify

y=1/2

Answer: x=-1, y=1/2. (-1, 1/2).

6 0
4 years ago
Im practicing for a state test im taking- i am a 7th grader doing 9th grade algebra because well yeah im smort- anyways- my teac
tino4ka555 [31]

Answer:

62.5%

Step-by-step explanation:

the question is worded weirdly but basically since they're saying "<em>given that a state does not use nuclear power</em>", you can ignore the ones that do use nuclear power.

20 + 12 = 32

and then u have to find the percentage that do use coal (20). to do that all you have to do is divide then move the decimal place backwards 2 times

20 ÷ 32 = 0.625

62.5%

4 0
3 years ago
Four more than a number is more than 13
Pepsi [2]
X > 9 is the answer. This is the correct answer because you would subtract 4 from each side of the equation, which would leave X on one side and nine on the other. The inequality remains the same since you are not dividing at all by any negative numbers
8 0
3 years ago
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