Three times the difference of a number and 7 is equal to 18
1 answer:
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Answer:
3.1 feet
Step-by-step explanation:
Use the Pythagorean Theorem to find 0.5x and then multiply it by 2 to find x.
1.4²+b²=2.1²
1.96+b²=4.41
b²=2.45
b=
b≈1.56524758
x≈1.56524758×2
≈3.13049517
≈3.1 ft
Answer:
see below
Step-by-step explanation:
If your calculator doesn't have a % key, you can change each of the percentages to a decimal by dividing the numerical value by 100. "%" means "/100".
44% = 44/100 = 0.44 . . . . . . both fractions are read "forty-four hundredths"
Then 44% of 205 = 0.44×205 = 90.2
When you have repetitive calculations like this, a spreadsheet or calculator is handy.
