2x-24 = 68 2x = 92 so x = 46. Sarah is 22 and her mum is 46.
Answer:
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<mn>5</mn>
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<mi>w</mi>
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Step-by-step explanation:
Which questions. There is no pic
Answer:
D
Step-by-step explanation:
Answer:
The x and y intercept are (20,0)
Step-by-step explanation:
2x-4y=40—eqn1
-x+2y=-20—eqn2
Make x the subject of eqn2
-x=-20-2y
x=20+2y
plug this into eqn 1
2(20+2y)+4y=40
40+4y+4y=40
8y=40-40
y=0
plug y=0 into eqn2
-x+2(0)=-20
-x=-20
x=20
