140.8
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To solve x + x + x + x, set the problem up as multiplication like this 4x = 128. Divide both sides of the problem by 4. You will get x = 32. To check your work, substitute 32 for the x and do the math. 4 x 32 = ?. If the answer is 128, the answer is correct.
4 x 8 =32
The answer to the math problem 48.90 x 6 is 293.40.
The math problem 4.6 x 0.7 can be solved by multiplying. The answer to this problem would be 3.22. This math problem can easily be solved by elementary students and higher.
120º Fahrenheit is approximately 48.9º Celsius. The conversion factor is the Fahrenheit temperature minus 32, times five ninths, or [(ºF -32) x 5] /9 = ºC 120-32 = 88, 88 x 5=440, and 440/9 = 48.88 (repeats 8)