Alex bought twice as many pears as apples. He bought 4 more pears than oranges. He bought 6 apples. How many oranges did Alex buy?
Answers
He bought 6 apples, 8 oranges, and 12 pears.
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Dave uses 500 milliliters of juice for a How many more punch recipe He mixes it with 2 liters of ' pears did she buy ginger ale How many milliliters oi Dunce does he make ~ / .
There are 52 titled chapters in this book. Is there a sure possibility that some chapters start with the same a) letter b) word?
Michael is 17 years older than John. In 4 years, the sum of their ages will be 49. Find Michael's present age.
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40% ............. x
-----------------------------
x=40*2.20/100
x=88 / 100
x= 0.88
The answer is x=0.88
Answers
Answer:
c hoped this helped
Step-by-step explanation:
0.25
0.25
0.25
Which is the expected value of the random variable with the given probability distribution?
a. 0
C. 1.5
b. 1
Answers
Answer: C. 1.5
Step-by-step explanation:
5/s+2/5=2/s
Answers
Answer:
Step-by-step explanation:
Errors in Algebraic Operations
It's usual that students make mistakes when misunderstanding the application of algebra's basic rules. Here we have two of them
- When we change the signs of all the terms of a polynomial, the expression must be preceded by a negative sign
- When multiplying negative and positive quantities, if the number of negatives is odd, the result is negative. If the number of negatives is even, the result is positive.
- Not to confuse product of fractions with the sum of fractions. Rules are quite different
The first expression is
Let's arrange into format:
We can clearly see in all of the factors in the expression the signs were changed correctly, but the result should have been preceeded with a negative sign, because it makes 3 (odd number) negatives, resulting in a negative expression. The correct form is
Now for the second expression
Let's arrange into format
It's a clear mistake because it was asssumed a product of fractions instead of a SUM of fractions. If the result was correct, then the expression should have been
Answers
Final answer:
A frequency table lists numbers and their occurrences within a set of data. If '8' shows up in your data, you would put it in the frequency table alongside the number of times it appears.
Explanation:
A frequency table is a helpful tool in statistics. It's a type of tally chart that shows how often different numbers or items occur in a set of data. If the number '8' appears in your data, you would place it in the frequency table alongside the number of times it appears.
For example, if the number '8' appeared three times in your data, your frequency table might look something like this:
- Number: 8
- Frequency: 3
This shows that the number '8' has a frequency of 3 in your data set.
Learn more about Frequency Table here:
#SPJ3
b. Use expressions for the length and width to write an inequality for the
perimeter, on the basis of the given information.
c. Solve the inequality, clearly indicating the width of the rectangle.
Answers
Part A
w = width
L = length
L = w+8 since the length is 8 mm longer than the width
Answer: w+8
====================================================
Part B
P = perimeter of rectangle
P = 2*(L+W) = 2L + 2W
We want the perimeter to be more than 32 mm, so we want P to be greater than 32
This means we write P > 32
Replace P with either 2(L+W) or 2L+2W. I'll pick 2L+2W
So we go from
P > 32
to
2L+2W > 32
After this, replace L with W+8 (refer to part A above)
We now have
2(W+8) + 2W > 32
Answer: 2(w+8) + 2w > 32
====================================================
Part C
Let's solve the inequality found in part B to get...
2(w+8) + 2w > 32
2w + 16 + 2w > 32
4w + 16 > 32
4w + 16-16 > 32-16 ....... subtracting 16 from both sides
4w > 16
4w/4 > 16/4 ......... dividing both sides by 4
w > 4