Answer:
<h2>x = 5.4</h2>
Step-by-step explanation:
<em>use the distributive property </em><em>a(b + c) = ab + ac</em>
<em>subtract 2.76 from both sides</em>
<em>divide both sides by (-2.3)</em>
Answer:
The weighted mean of the number of t-shirts sold per week is 5.6.
Step-by-step explanation:
Given : The data below represents the number of T-shirts sold per week by a student who started his own online t-shirt business.
T-Shirt Sold per Week() Frequency()
2 1
4 4
6 7
8 3
To find : The weighted mean of the number of t-shirts sold per week ?
Solution :
The formula of weighted mean is
Substituting the values in the formula,
Therefore, The weighted mean of the number of t-shirts sold per week is 5.6.
Answer:
A. 45 + b = 88, so b = $43
Step-by-step explanation:
We know that he's earned $45 dollars, plus b dollars for babysitting. This gives us the first part of the equation (45 + b). The total amount he earned was $88, so 45 + b = 88.
Then, you can solve it.
45 + b = 88
-45 -45
0 + b = 43
b = 43
This means he earned $43 babysitting his younger brother.
Hope this helps :)
Answer:
x = 15/7
Step-by-step explanation:
Cross multiply.
2(5+x) = 5(5-x)
Expand the brackets.
10+2x = 25 - 5x
Add 5x and -10 on both sides.
2x + 5x = 25 -10
Combine like terms.
7x = 15
Divide both sides by 7.
x = 15/7
Answer:
108.
Step-by-step explanation:
Least common multiple (LCM) of 12 and 27 is 108.