Write an expression that shows how to use the halving and doubling strategy to find 28✖️50
2 answers:
28÷4=7
7×50=350
350×4=1400
28÷4=7 7×50=350 350×4=1400
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Answer:
x=5, y=-2. (5, -2).
Step-by-step explanation:
2x+3y=4
3x+4y=7
----------------
3(2x+3y)=3(4)
-2(3x+4y)=-2(7)
----------------------
6x+9y=12
-6x-8y=-14
-----------------
y=-2
2x+3(-2)=4
2x-6=4
2x=4+6
2x=10
x=10/2
x=5
Answer:
7
Step-by-step explanation:
I hope it helped you
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Answer:
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Step-by-step explanation:
