Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of calcium? Round to the nearest tenth.
2.6 fluid ounces
2.3 fluid ounces **
1.8 fluid ounces
2.1 fluid ounces
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A scale drawing uses the scale 3 in. = 20 ft. Find the missing measure.
57 in. = ____ ft
380 **
340
1,080
190
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A scale drawing uses the scale 3 in. = 20 ft. Find the missing measure.
____ in. = 26 2/3 (Two-third)
1.33
4**
4.33
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**=My Answers
For your first answer, the exact value if 2.148, which when rounded off gives 2.1, not 2.3.
The other questions are correct!
very last one
A scale drawing uses the scale 3 in. = 20 ft. Find the missing measure.
____ in. = 26 2/3 (Two-third)
1.33
4**
4.33
9.67
missed an answer
thank you!
That's a scale-tastic answer! You really measured up on that one. Keep it up!
To solve the first problem, you can set up a proportion to find the number of fluid ounces of milk that provide 72.5 milligrams of calcium.
The given proportion is: 8 fluid ounces / 270.0 milligrams = x fluid ounces / 72.5 milligrams
To find the value of x, you can cross-multiply and solve for x:
8 * 72.5 = 270.0 * x
580 = 270.0 * x
x = 580 / 270.0
x ≈ 2.1481
Rounding to the nearest tenth, the answer is 2.1 fluid ounces.
Therefore, the correct answer is 2.1 fluid ounces.
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To solve the second problem, you can use the given scale to find the missing measure.
The given scale is 3 in. = 20 ft.
To find the missing measure (in feet) when 57 inches are given, you can set up a proportion:
3 in. / 20 ft. = 57 in. / x ft.
To find the value of x, you can cross-multiply and solve for x:
3 * x = 20 * 57
3x = 1140
x = 1140 / 3
x = 380
Therefore, the missing measure is 380 feet.
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To solve the third problem, you can use the given scale to find the missing measure.
The given scale is 3 in. = 20 ft.
To find the missing measure (in inches) when 26 2/3 (two-thirds) is given, you can set up a proportion:
3 in. / 20 ft. = x in. / 26 2/3 in.
To solve for x, you can convert 26 2/3 inches into a decimal.
26 2/3 inches is equal to 26.666... inches (approximately).
Now, you can set up the proportion:
3 / 20 = x / 26.666...
To find the value of x, you can cross-multiply and solve for x:
3 * 26.666... = 20 * x
x ≈ 4
Therefore, the missing measure is approximately 4 inches.
Therefore, your original answers for the three problems are correct:
1. 2.1 fluid ounces
2. 380 feet
3. 4 inches