All categories

3 years ago

How to do word problem 7

Mathematics

1 answer:

konstantin123 [22]3 years ago

3 0

You would buy two binders which would equal $10 and the three notebooks that cost $6 so in total it would be $16
So 16-6=10 which would be two binders since each one cost $5
Hope this helps! :)

You might be interested in

In 10⁵, the number 10 is the?

xxMikexx [17]

Answer:

The number 10 is the base

8 0

4 years ago

Please help????????????? (ASAP)

Rina8888 [55]

Answer: 12

Step-by-step explanation:

$\frac{b}{3}+16=20$

Subtract 16

$\frac{b}{3}=20-16$

$\frac{b}{3}=4$

Multiply by 3

$b=4*3$

$b=12$

8 0

4 years ago

Find the slope of the line that is parallel and perpendicular <br><br> -7x-2y=4

Rus_ich [418]

$\bf -7x-2y=4\implies -2y=7x+4\implies y=\cfrac{7x+4}{-2}\implies y=\cfrac{7x}{-2}+\cfrac{4}{-2} \\\\\\ y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{7}{2}} x-2\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill$

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{7}{2}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{2}{7}}\qquad \stackrel{negative~reciprocal}{\cfrac{2}{7}}}$

now, what's the slope of a line parallel to that one above? well, parallel lines have exactly the same slope.

5 0

3 years ago

Let h represent marks height in inches

frutty [35]

if his height is H, and she is 7 inches shorter than him, her height can be represented by the algebraic equation H-7

3 0

3 years ago

The area of a triangle is 16 units square. The length is twice the height. Find the height

Norma-Jean [14]

The formula for area of a triangle is 1/2 x base x height.

Let the height = x

Then the base (length) = 2x ( twice the height)

You know have 16 = 1/2 * 2x * x

Multiply both sides by 2 to remove the 1/2:

32 = 2x * x

Simplify the right side:

32 = 2x^2

Divide both sides by 2:

16 = x^2

Take the square root of both sides:

X = 4

The height is 4 units and the length is 8 Units

8 0

3 years ago