Answer:
x=-2, y=-9/2. (-2, -9/2).
Step-by-step explanation:
x=2y+7
3x-2y=3
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3(2y+7)-2y=3
6y+21-2y=3
6y-2y+21=3
4y+21=3
4y=3-21
4y=-18
y=-18/4
simplify
y=-9/2
x=2(-9/2)+7
x=-9+7
x=-2
∠BDK = ∠JDR
3x +4 = 5x -10
14 = 2x . . . . . . . . add 10-3x
7 = x . . . . . . . . . . divide by 2
Answer:
Step-by-step explanation:
we know that
To convert yards to miles multiply by 1/1,760
so
To convert seconds to day multiply by 1/86,400
In this problem we have
Answer:
x = 20/9
Step-by-step explanation:
We want to write out all of the mixed fractions into improper fraction form. So -2 and 1/9 becomes -19/9 and -4 and 1/3 becomes -13/3. Then we get (-19/9) - (-13/3). The two minus signs together means a positive/plus sign, so we get -19/9 + 13/3. In order to add, we want the denominator to be the same. A common denominator could be 9, so -19/9 + 13(3)/3(3) = -19/9 + 39/9 = 20/9, which is our final answer
Answer:
11
Step-by-step explanation:
3600 = 100x+2500
1100 = 100x
x = 11
