Answer:
it should be 80%
Step-by-step explanation:
I hope this helps
The value of the expression 3ac - b² - c² is -61.
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
The expression will be solved as below:-
3ac - b² - c² = ( 3 x 4 x -3 ) - ( 4 )² - ( -3 )²
= ( -36 - 16 - 9 )
= ( -61 )
Therefore, the value of the expression 3ac - b² - c² is -61.
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Answer:
as time increase the money decrease
the equation should be 7+2x=t
x=the number if items he gets
t=total
Answer:
68 mph
Step-by-step explanation:
Mph=miles ÷ time
Mph=204 ÷ 3
