Answer:
5×(-4) = -20
(-1) × 4 = -4
Step-by-step explanation:
Here it' sayin when a positive number ( it may be odd or even ) gets multiplied with an even number ( it may be positive or negative ) , the product will be positive number.
5×(-4) = -20 .Here 5 is a positive number & 4 is a negative even number but the product -20 is a negative number. So it contradicts the statement.
(-1) × 4 = -4 . Here -1 is a negative number & 4 is a positive even number but the product -4 is a negative number. So it contradicts the statement.
Answer: 18.75 inches
Step-by-step explanation:
Let the height of the model be represented by x. Therefore, based on the information given in the question, we can form an equation which will be:
3/x = 32/200
Cross multiply
32 × x = 200 × 3
32x = 600
x = 600/32
x = 18.75
Therefore, the height of the model is 18.75 inches
Answer:
The answer is 3
Step-by-step explanation:
3=3
s = hours it takes the small pipe on its own.
L = hours it takes the large pipe on its own.
we know the small pipe can do it in 11 hours total, so s = 11, so, how much of the whole job has the small done in 1 hour only?
well, if it takes 11 hours to do the whole thing, in 1 hour it has done only 1/11 of the whole job.
we know both pipes working together can do it in 6 hours flat. So in 1 hour only, both of them have done only 1/6 of the whole thing.
in that 1 hour, how much has the large one done? well, it has only done 1/L of the job.
and you can round that up as needed.
First, add or subtract all variables
y2 + 4y - 16y + 3y = -7y
-7y + 2 is your answer
