Answer:
Small boxes: 8
Large boxes: 11
Step-by-step explanation:
number of small boxes = x
number of large boxes = y
weight of boxes is represented by:
50x + 80y = 1280
Number of boxes is represented by:
x + y = 19
First, we'll solve for x in terms of y:
x = 19-y
Then we'll substitute that into the weight equation
50(19-y) + 80y = 1280
950 - 50y + 80y = 1280
30y = 330
y = 11
Now drop that numerical value into the number of boxes equation, and we'll get
x + 11 = 19
x = 8
Check the math in the weight equation:
50(8) + 80(11) =
400 + 880 = 1280
Let me know if you have any questions. Have a good evening!
Answer:
2/45
Step-by-step explanation:
First chooses a polka dot shirt: 2 / (5+6+2+2) = 2/15
Then a striped shirt, after replace: 5/15 = 1/3
the probability that she chooses a polka dot shirt then a striped shirt:
2/15 x 1/3 = 2/45
Answer:
Step 1 of 5
(1). Familiarize.
<em>The energy in the slice of carrot cake is described in terms of the requirement of energy of an adult on a day.
</em>
<em>
</em>
<em>So we let x calories = the requirement of energy of an adult on a day.</em>
<em>3/4 ( x ) calories
</em>
<em>
</em>
<em>Then is the energy in the slice of carrot cake.
</em>
<em>
</em>
<em>The energy in the slice of carrot cake is 1560 calories.</em>
<em />
Answer:
7
Step-by-step explanation:
M = (L + S)
24/2 = 12
12-5 =7
L:5
S:7
7+5 = 12 (Manjit)
12+12= 24
Answer:
The claimed proportion (population) is
The sample proportion (p-hat) is
Step-by-step explanation:
In the population, we have the parameter p that is 11%.
Then, a sample of n=160 is taken and the proportion of the sample is 0.10.
The sample proportion p-hat can differ from the population's proportion. There is a sampling distribution that gives the possible values of the sample proportion taken out of this population and its associated probabilities.
