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2 years ago

How much money did you save if the original price was $21 and this discount was 28%

Mathematics

1 answer:

sveta [45]2 years ago

4 0

Answer:

Step-by-step explanation:

it would be 15.12 and you would save5.88

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X=2π/3

Marina86 [1]

Answer:

$cos{\frac{2\pi}{3}}=-\frac{1}{2}$ .

Reference angle is $\frac{\pi}{3}$

Step-by-step explanation:

Given the value of x. we have to find the correct value of cosx.

$x=\frac{2\pi}{3}$

Now, we have to find the exact value of $cos{\frac{2\pi}{3}}$

$cos{\frac{2\pi}{3}}=cos(\frac{\pi}{2}+\frac{\pi}{6})$

$=-sin(\frac{\pi}{6})$

$=-\frac{1}{2}$

Now, we have to find the reference angle of $x=\frac{2\pi}{3}$ .

Since the angle $x=\frac{2\pi}{3}$ lies in second quadrant, the reference angle formula is

Reference angle= $\pi-given angle$ .

= $\pi-\frac{2\pi}{3}=\frac{\pi}{3}$

3 0

2 years ago

The equation y=15x+60 represents the total cost y,the security fee,and The hourly rate for renting a tool for x hours .Make a ta

Tamiku [17]

Here is a table that will help you understand. And the answer.

7 0

3 years ago

A new field has a perimeter of 220 m and a width of 62 m. A bag of canola seed will cover 185 m2 of ground. How many bags of can

siniylev [52]

Answer:

Step-by-step explanation:

Assuming the field is a rectangle, the perimeter is found through the equation:

$P = 2l + 2w$

Since we know the perimeter and width, we can substitute and solve for the length.

$(220) = 2l + 2(62)\\220 = 2l + 124\\96 = 2l\\l = 48\\$

Using the length and width, we can find the area.

$A = lw\\A = (48)(62)\\A = 2976$

The area is 2976 squared meters. We divide by the area a bag of canola seed can cover and round up if necessary to find the total number of bags.

$n = 2976 / 185\\n = 16.09$

Because we need a whole bag in order to cover for the decimal area, we round up to 17 bags.

7 0

2 years ago

What is the answer for the algebra equation Ab•2b

CaHeK987 [17]

Answer:

$\huge\bold\purple{ 2a•3b }$

3 0

2 years ago

Tom earns $12 a week mowing lawns. He spends

Gnoma [55]

Answer:

6 dollars on lunch because 36 divided by 6 is 6 lol and you should multiply 1/3 to 2/6 to have an even number so it would be 12 on music and 6 on lunch so 18 total spent and 18 saved

18 total saved

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers