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3 years ago

A $50 shirt is on sale for $42. What percent does the customer save?

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

8 0

He is saving 16%

You can use a ratio to find things like this because it’s so simple

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What is the surface area and volume? PLEASE EXPLAIN IN DETAIL.

Effectus [21]

Check the picture below.

so to find the surface area of the triangular prism, we simply add the areas of each of the figures composing it, as you can see is really just 2 triangles an 3 rectangles.

$\bf \stackrel{\textit{\Large Areas}}{\stackrel{triangles}{2\left[ \cfrac{1}{2}(4)(3) \right]}+\stackrel{\textit{rectangles}}{(3\cdot 10)+(4\cdot 10)+(5\cdot 10)}}\implies 12+30+40+50\implies 132$

now, to get the volume is simply the area of the triangular face times the length, well, we know the area of one of the triangles is 6, times 10 is just 6*10 = 60.

7 0

3 years ago

The sum of the measures of the angles of any triangle is 180 degrees. In triangle ABC, angles A and B have the same measure, whi

olasank [31]

Step-by-step explanation:

is 45

is 90

hence

A+B+C=180

=45+45+90 =180

3 0

3 years ago

On Friday, a local hamburger shop sold a combined total of 387 hamburgers and cheeseburgers. The number of cheeseburgers sold wa

ruslelena [56]

Let the number of hamburgers sold be "h" and the number of cheeseburgers be "2h" as it was two time as the humbugers .form equation frome it '2h+h=387".comp the like terms which gives you 3h=387 divide each side by 3 which gives you h=129 which is equal to the number hambyrgers .multiply 129 by 2 to get the number of cheeseburgers which is 258

7 0

3 years ago

A varsity boy's basketball team has ratio of seniors to juniors that is 7:4. The varsity girl's basketball team has a ratio of s

valentina_108 [34]

Answer:

Girl's basketball team has more seniors

Step-by-step explanation:

A varsity boy's basketball team has ratio of seniors to juniors that is 7:4.

Let there are 7x seniors and 4x juniors in boy's basketball team.

ATQ,

7x+4x = 12

11x = 12

x = 12/11

Seniors = $7\times \dfrac{12}{11}=7.63$

The varsity girl's basketball team has a ratio of seniors to juniors that is 3 to 2.

Let there are 7x seniors and 4x juniors in girl's basketball team.

3x+2x = 12

5x = 12

x = 12/5

Seniors = $7\times \dfrac{12}{5}=16.8$

As we can see that girl's basketball team has more seniors as compared to the boy's team.

4 0

3 years ago

Find the slope of a line perpendicular to y = -2/5x + 4/5

valkas [14]

To find a perpendicular line, you need to find the negative reciprocal of the slope.

-2/5 flips into -5/2
Since -2/5 is negative, -5/2 turns positive, so 5/2.

Therefore, the slope of a line perpendicular to Y = -2/5x + 4/5 is 5/2

6 0

3 years ago