The idea of using 4 because it's a factor is the wrong choice. If the equation were 5x = 88 and you divide by 4, you aren't getting a single 1x alone. So the "divide because it's a factor" choice is wrong.
The answer should be the second option as it gives a good reason as to how multiplying it by five is the best choice. It could also be the first option, but I think the second option is more apt.
O -15
08
a
08
O 15
Answer:
A. -15
Step-by-step explanation:
First, ignore the negative sign and simply pretend the problem is asking for the product of 3 and 5.
When multiplying a by b, it's essentially the same as adding a to itself b times. Here, we multiply 3 by 5, so add 3 to itself 5 times: 3 + 3 + 3 + 3 + 3 = 15.
Now, look at the negative sign. When we multiply two numbers of different signs (one is negative and one is positive), the result is always negative. However, when we multiply two numbers of the same sign (either both positive or both negative), the result is always positive.
Here, we have one negative and one positive, which means the result should be negative. So, add a negative sign to 15 to get -15.
The answer is A.
Answer:
-15
Step-by-step explanation:
Product of a and b is:
a × b
Similarly, the product of -3 and 5 is:
-3 × 5
-15
Answer:
The equation that best represents the line that is parallel to 3x - 4y = 7 and passes through the point (-4, -2) is y = 3/4x + 1.
Step-by-step explanation:
3x - 4y = 7 and (-4, -2)
First, solve for y in the equation:
3x - 4y = 7
-4y = -3x + 7
4y = 3x - 7
y = 3/4x - 7/4
m = 3/4 (This will be the slope of the parallel line.) and (-4, -2)
Use the point-slope equation to find the equation that will best represent a parallel line:
y − y1 = m(x − x1)
y - -2 = 3/4(x - -4)
y + 2 = 3/4x + 3 (the 4s cancel out)
(3/4 x 4/1 = 3)
y = 3/4x + 1
The graph that I attached is what these two equations would look like graphed. I am not sure what you mean by two options, I'm sorry!
B) 5-x
C) x-5
D) x+5
Answer:
Option (d) is correct.
Selina's age is written as x + 5
Step-by-step explanation:
Given : Amy is 5 years younger than Selina. if Selina's age can be represented by x,
We have to write an expression representing Amy's age.
Since, x represent the Selina's age.
and also Amy is 5 years younger than Selina
that is Amy is 5 years smaller than Selina
So Selina is 5 year older than Amy
So, Selina's age is written as x + 5