Answer:
$196
Step-by-step explanation:
Lets assume,
cost of a belt = 'x'
cost of a pair of pants = 'y'
Now, According to the question;
- x + y = 490;
- cost of a bag = twice the cost of belt = 2x;
- cost of a pair of pants = twice the cost of bag
⇒ y = 2×2x ⇔ 4x
hence, by subtituting the values in equation' we get;
⇒ x + 4x = 490
⇒ 5x = 490
⇒ x = 98
So, the difference between the cost of the pair of pants and the bag ;
⇒ y - 2x
⇒ 4x - 2x
⇒ 2x = 2×98 = 196.
Answer:
95.44% of the grasshoppers weigh between 86 grams and 94 grams.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 90 grams and a standard deviation of 2 grams.
This means that
What percentage of the grasshoppers weigh between 86 grams and 94 grams?
The proportion is the p-value of Z when X = 94 subtracted by the p-value of Z when X = 86. So
X = 94
has a p-value of 0.9772.
X = 86
has a p-value of 0.0228.
0.9772 - 0.0228 = 0.9544
0.9544*100% = 95.44%
95.44% of the grasshoppers weigh between 86 grams and 94 grams.
Answer:
C
Step-by-step explanation:
58 - 40 = 18
18 ÷ 1.5 = 12
it would take 12 weeks
Answer:
68.5. 3. 180. 68 o titltltl. 74 75 76 77. 12 73 1. 67.5. 67. 72 No Back. 66.5 ... 72 73 74 75 76 78 80. 1. 3 o lolo.1717% 17²1-²10. 20% 71 71/2 268. 12 13 zol. 80.5. 80. 79.5. 79. 78.5. 78. 10461+2+/21th 1+2 ot t 1+1. 70/2 71 71 72 73 74 75 ... 76. 1366 [1/t1 H H H H. 70% 71/2 72% 73% 74% 75. H. 77. I. 97-100.
Step-by-step explanation: