Answer:
!9 degrees 6 point 4
Step-by-step explanation:
Answer:
<u>1. C.</u>
<u>2. B.</u>
<u>3. A.</u>
Step-by-step explanation:
First situation given:
An adult and 5 children rent skates. It costs $ 4 per adult for skates and a total of $ 16.
Correct equation: C
<u>4 + 5 x = 16</u>
Second situation given:
It costs Mikael $ 4 to make a bike bag, and he sells each for $ 5. He has made a profit of $ 16, so far.
Correct equation: B
<u> ( 5 − 4 ) x = 16</u>
Third situation given:
It was 16°C. It began falling 4°C per hour until it reached 5°C.
<u>Correct equation: A</u>
<u>16 − 4 x = 5</u>
Answer:
positive
Step-by-step explanation:
X is positive since it is to the right of zero
Y is negative since it is to the left of zero
-xy
- ( +) ( -)
negative times positive times negative
negative times negative
positive
Most of these problems are the commutative property:
Addition
a + b = b + a
Multiplication
a * b = b * a
and the associative property:
Addition
(a + b) + c = a + (b + c)
Multiplication
(a * b) * c = a * (b * c)
There's also the Identity property:
Addition \ Subtraction:
a + 0 = a \ a - 0 = a
Multiplication \ Division:
a * 1 = a \ a / 1 = a