2 years ago

A=1/2w(b+c) solve for c

Mathematics

1 answer:

kaheart [24]2 years ago

3 0

9514 1404 393

Answer:

c = 2A/w -b

Step-by-step explanation:

Multiply by the inverse of the coefficient of the parentheses.

$A=\dfrac{w}{2}(b+c)\\\\\dfrac{2A}{w}=b+c\\\\\boxed{c=\dfrac{2A}{w}-b} \qquad\text{subtract $b$}$

You might be interested in

Through: (0,3), parallel to y= -2x + 4

jeka94

The slope is -2 because y = mx + b

y-y₁ = m (x-x₁)

y - 3 = -2 (x-0)

y - 3 = -2x

y = -2x + 3

5 0

2 years ago

The area of a rectangular wall of a barn is 140 square feet. Its length is 6 feet longer than twice its width. Find the length a

timofeeve [1]

$l*w=140$
$l=2w+6)$
$(2w+6)*w=2w ^{2} +6w=140$
$70=w^2+3w$
$70=w(w+3)$
w=7
$l=2(7)+6$
$l=20$

7 0

2 years ago

Compare these data sets. The equation of the trend line is listed below each data set.

Luda [366]

Answer:

b and e

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Kinda want to cry right now.. Someone PLEASE help me.. I know there is someone out there smart enough.... 25 points and Brainlie

Svetlanka [38]

Answer:

a) Infinite solutions

b) No solutions

Step-by-step explanation:

First, know the following:

If the graphs intersect, there's only one solution.

If the graphs are parallel, there are no solutions.

If the graphs are the exact same line, there are infinite solutions.

For a):

Change the first equation into a linear one.

2x+3y=6

3y=-2x+6

$y=-\frac{2}{3} x+2$

Change the second equation into a linear one.

4x+6y=12
6y=-4x+12
$y=-\frac{2}{3} x+2$

Boom. You have two equations which are equal. As stated above, graphs on the exact same line have infinite solutions.

For b)

They are already in linear form so hurray.

$y=\frac{1}{5} x+2\\y=\frac{1}{5} x+10\\$

These lines are parallel since they have the SAME slope but a different y-intercept. As stated above, parallel lines have no solutions.

5 0

3 years ago

Ben had a coupon for an additional 15% off of the sale price of any intem in a store. He uses his coupon to buy a shirt whose sa

borishaifa [10]

Answer:

Step-by-step explanation:

15% of 20=0.15 x 20=3

4 0

2 years ago

Read 2 more answers