Answer:
40
Step-by-step explanation:
2 • (3(5 + 2) - 1) =
Start with the innermost parentheses.
= 2 • (3(7) - 1)
Now do the multiplication inside the parentheses.
= 2 • (21 - 1)
Do the subtraction inside the parentheses.
= 2 • 20
= 40
Answer:
m = 0
Step-by-step explanation:
Hope this helps.
Answer:
4n + 8 = -48
n = -14
Step-by-step explanation:
Using key words from the problem, you can set up an equation with the proper operations to solve for the variable. Product = multiplication, so the 'product of 4 and a number' = 4n. Increased = addition, so increased by 8 = 4n + 8. The word 'is' means equal to, so:
4n + 8 = -48
In order to solve for 'n', you use inverse (opposite) operations and whatever you do to one side of the equation, you do to the other:
Subtract 8: 4n + 8 - 8 = -48 - 8 or 4n = -56
Divide 4: 4n/4 = -56/4
Solve for 'n': n = -14
Given:
Price paid including tax: $37.48
sales tax = 5%
This means that $37.48 is equivalent to 105%
To get the value of the 100% or its original price, we divide the price paid by its percentage rate
$37.48 ÷ 1.05 = $35.70 value of the original price
$35.70 * 5% = $1.78 value of sales tax
$35.70 + 1.78 = $37.48
Answer: DF = 4 in
Step-by-step explanation:
Here in triangle DEF,
In which DE = 4, 
, and 
Since, 
⇒ 
⇒ 
⇒ 
Thus, first option is correct.
