From the last time i did it, i believe its B
we are given
Jim can lay bricks for a fireplace and chimney in 5 days
Jim's 1 day work is

we are given
With his father's help he can build it in 2 days
so, both can do same work in 2 days
so, both's 1 day work is

Let's assume
his father to build it alone in x days
his father 1 day work is

so, both's 1 days work is
so, we can set it to 1/2
we get
now, we can solve for x
now, we can cross multiply
now, we can solve for x

so,
his father to build it alone is
............Answer
Answer:
Cost of 1 = 30
So cost of 8kg apples=8*30
=240
Step-by-step explanation:
Answer:

Step-by-step explanation:
First we need to rewrite 3x-5y=8 in slope-intercept form.

The slope of this line is

The line perpendicular to this line will have a slope that is the negative reciprocal of 3/5, which is

This line passes through (3,7).
The equation is given by:

We substitute the point and slope to get:

We multiply through by 3 to get:

Expand to obtain:


