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3 years ago

6th grade math money equation

Mathematics

1 answer:

zubka84 [21]3 years ago

7 0

Less than $115. Because if you divide 620 you get 310 then divide it by 3 you get 103.33 which is less than 115

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Help!!!!!!!!!!!!!!!!

kaheart [24]

Answer:

$\cos\alpha\sin\alpha(\cos\alpha-\sin\alpha)$

Step-by-step explanation:

First, simplify each term:

$\sin\left(\dfrac{\pi}{2}+\alpha\right)=\cos \alpha\\ \\\cos \left(\dfrac{\pi}{2}+\alpha\right)=-\sin \alpha\\ \\\cos \left(\alpha-\dfrac{3\pi}{2}\right)=-\sin \alpha\\ \\\sin \left(\dfrac{3\pi}{2}+\alpha\right)=-\cos \alpha$

Then given expression is equivalent to

$\cos ^3\alpha+(-\sin \alpha)^3-(-\sin \alpha)+(-\cos \alpha)\\ \\=\cos ^3\alpha-\sin^3 \alpha+\sin \alpha-\cos \alpha\\ \\=(\cos\alpha-\sin\alpha)(\cos^2\alpha+\cos\alpha\sin\alpha+\sin^2\alpha)-(\cos\alpha-\sin\alpha)\\ \\=(\cos\alpha-\sin\alpha)(1+\cos\alpha\sin\alpha-1)\ \ [\cos^2\alpha+\sin^2\alpha=1]\\ \\=\cos\alpha\sin\alpha(\cos\alpha-\sin\alpha)$

6 0

3 years ago

PLZ HELP MEH FOR A BUNCH O POINTS PLLLLLLZZZZZZZZZ I NEED NUMBER 2 BASED ON NUMBER 1!!!!!! IN LONG DIVISION FORM!!!!!!!

MissTica

Answer:

Step-by-step explanation:

1) 64.04

2)16.02

6 0

3 years ago

Given sec A = 5/3 and that angle A is in Quadrant I, find the exact value of csc A in simplest radical form using a rational den

serg [7]

9514 1404 393

Answer:

5/4

Step-by-step explanation:

The relationship between the sec and csc functions is ...

csc(A) = sec(A)/√(sec²(A) -1)

For the given value of sec(A), this is ...

csc(A) = (5/3)/√((5/3)² -1) = (5/3)/√(16/9) = (5/3)/(4/3)

csc(A) = 5/4

Some calculators can tell you the answer directly.

5 0

3 years ago

A tent was marked up 150% from an original cost of $52. Last Friday, Ethan bought the tent and paid an additional 10% in sales t

Savatey [412]

Answer

Find out the what was his total cost .

To prove

As given

A tent was marked up 150% from an original cost of $52.

Last Friday, Ethan bought the tent and paid an additional 10% in sales tax.

Than the equation becomes

150 % is written in the decimal form .

$=\frac{150}{100}$

= 1.5

10 % is written in the decimal form .

$=\frac{10}{100}$

= 0.1

cost of the tent when 150% marked up from origianl price = 1.5× 52

= $ 78

cost of the tent = origianl cost + 150% marked up from origianl price

= $52 + $78

= $ 130

Sales price on the tent = $130 × 0.1

= 13

Total cost of the tent = $130 + $13

= $143

Therefore the cost of the tent is $143.

3 0

3 years ago

Read 2 more answers

How to get midpoint in a graph with 2 endpoints

Flura [38]

Answer:

You can find the midpoint of a line segment given 2 endpoints, (x1, y1) and (x2, y2). Add each x-coordinate and divide by 2 to find x of the midpoint. Add each y-coordinate and divide by 2 to find y of the midpoint. It's important to note that a midpoint is the middle point on a line segment.

In order to see the midpoint formula in use, let's look at an example.

Question:

Determine the midpoint of the line segment with the given endpoints.

A(3, 7), B(9, 1)A(3,7),B(9,1)

Solution:

We can use the formula for midpoint to determine the midpoint: M= (x1 + x2/2 , y1+y2/2)

First, plug the x and y value into the formula:

M=(3+9/2 , 7+1/2)

Then, we can calculate the midpoint:

(6, 4)

3 0

3 years ago