Answer:
you can just use formula for perpendicular in the second question
m1 . m2 = -1
Monday : x
tuesday : 3x
wednesday : 3x - 20 = 40
thursday: 20
3x - 20 = 40
3x = 40 + 20
3x = 60
x = 60/3
x = 20
monday : 20 minutes
tuesday : 3x....3(20) = 60 minutes
wednesday : 40 minutes
thursday: 20
for a total of : 140 minutes <===
Answer:
anything greater than 3/5
Step-by-step explanation:
equation: x is greater than 3/5
Answer:
The subtrahend is 18.
27-18 = 9
Step-by-step explanation:
A subtraction number sentence is an equation that shows a number being subtracted from another number with a final answer. The first number in a subtraction number sentence is the minuend. The second number in a subtraction number sentence is the subtrahend. The answer to a subtraction problem is called the difference.
In the given example we have 27 as minuend and 9 as difference. We have to find subtrahend.
Let subtrahend be x.
Than the expression becomes:
27-x=9
Combine the like terms.
- x = 9-27
-x = -18
negative signs will be cancelled out by each other.
x= 18
Therefore the subtrahend is 18.
27-18 = 9 ....