The equation of a line is given by y = mx + c; where m is the slope.
The given equation is 9 - x = 2y
y = -1/2 x + 9/2
Therefore, the slope is -1/2 and the y-intercept is 9/2.

8 0

3 years ago

Help with this problem pleaseeee

RUDIKE [14]

Step-by-step explanation:

(16 ×7×3)+(1/2×3×5×6)

=336+45

=381cubic inch

3 0

2 years ago

a publisher shipped 15 boxes of books to a bookstore.each box contained 32 books did the publisher shipped to the bookstore

vichka [17]

You have to multiply 15 by 32 and you get 480 which means the publisher shipped 480 books to the bookstore

7 0

3 years ago

Read 2 more answers

If a varies directly as b, and a = 28 when b = 7, find b when a = 5.

Jlenok [28]

Answer:

Value of b = $\frac{5}{4}$ =1.25.

Step-by-step explanation:

Direct Variation states that a relationship between two variables in which one is a constant multiple of the other.

*if one variable changes the other changes in proportion to the first.

*If a is directly proportional to b i.e,

$a \propto b$ then it is of the form

a = kb ;where k is constant variation.

Given: a varies directly as b;

then, by definition of direct variation;

we have;

$a = kb$ .....[1]

Substitute the value of a =28 and b =7 to solve for k;

$28 = k(7)$

Divide both sides by 7 we have;

$\frac{28}{7}=\frac{7k}{7}$

Simplify:

k =4

now, find b using same method when a =5;

then;

after substituting the value of a = 5 and k=4 in [1] ;

$5=(4)b$

Divide by 4 to both sides we get;

$b =\frac{5}{4}$

Therefore, the value of b = $\frac{5}{4}$ =1.25

4 0

2 years ago

Read 2 more answers