Answer:
5.2
Step-by-step explanation:
To solve for x, we want to isolate x. To do this, we need to multiply both sides by 4.
Multiply the numerators and the denominators separately.
4 • 17 = 68
1 • 13 = 13
Divide.
68 ÷ 13 = 5.23
Round to the nearest tenth.
5.2
Hope this helps!
<em>First, you would multiply 2 x 16. </em>
2 x 16 = 32
<em>Using that number, subtract by 8. </em>
32 - 8 = 24
<em>Multiply 3 x 16. </em>
3 x 16 = 48
<em>Subtract the two numbers from step 2 and 3. </em>
48 - 24 = 24
Answer:
532
Step-by-step explanation:
The score that represents the top 20% = A score = 80%
Z score for 80% percentile = 0.842
We solve using the z score formula
z = (x-μ)/σ, where
x is the raw score = ??
μ is the population mean = 490
and σ is the population standard deviation = 50
Hence:
0.842 = x - 490/50
Cross Multiply
0.842 × 50 = x - 490
x = 0.842 × 50 + 490
x = 42.1 + 490
x = 532.1
Approximately = 532
Therefore, the test score = 532
10 glasses
Turn (7 1/2) into an improper fraction (15/2)
Find the lowest common denominator (4)
convert 15/2 to 30/4
(30/4) / (3/4)
