Which expression is equivalent to 9a + 12?
1 answer:
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Answer:
x = 1, y = 3
Step-by-step explanation:
Use the y and substitute it into the 2nd equation. Solve for x. Then use that answer to solve for y.
Answer:
A (1×10)+(4×1)+(7×1/10)+(2×1/1,000)
Step-by-step explanation:
In the expanded form, the number is shown as a sum in which each digit is multiplied by its place value.
The decimal fraction digits are in the tenths place (1/10) and the thousandths place (1/1000).
(1×10)+(4×1)+(7×1/10)+(2×1/1,000)
