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Alina [70]
3 years ago
12

The supplement of an angle is 10 more than twice the complement of the angle. find the angle.

Mathematics
1 answer:
kvasek [131]3 years ago
7 0

Given a certain angle x, its complement is 90-x and its supplement is 180-x.

So, if the supplement of an angle is 10 more than twice the complement, you have

180-x = 2(90-x)+10

expand the right hand side:

180-x = 180-2x+10

We can simplify the 180 appearing on both sides:

-x = -2x+10

Add 2x to both sides

x = 10

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3 years ago
Toby buys packs of 12 racing cars for R49,99 and sells each racing car for R10 at school
Ratling [72]

Answer:

1.1  R5.83

1.2 R70.01

1.3 58.34%

Step-by-step explanation:

Given that he buys a pack of 12 racing cars  for  R49,99 then the unit cost for a car which is the total cost divided by the number of cars in a pack

= R49,99/12

= R4.17

If each car is sold for R10 then the profit made on each car which is the difference between the cost and the selling price

= R10 - R4.17

= R5.83

The profit margin on one pack of 12 racing cars

Profit margin is the ratio of the profit to the total selling price

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=R70.01

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= 58.34%

4 0
3 years ago
(2 * 15x) + (2 * 10)
yan [13]

Answer:

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6 0
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Read 2 more answers
in the following ordinary annuity interest is compounded with each payment and the payment is made at the end of the compounding
stealth61 [152]

Answer: $59313.58

Step-by-step explanation:

We know that formula we use to find the accumulated amount of the annuity ( ordinary annuity interest is compounded ) is given by :-

FV=A(\frac{(1+\frac{r}{m})^{mt})-1}{\frac{r}{m}}), where A is the annuity payment deposit, r is annual interest rate , t is time in years and n is number of periods.

Given : Annuity payment deposit :A= $4500

rate of interest :r= 6%=0.06

No. of periods : m= 1   [∵ its annual]

Time : t= 10 years

Now we get,

FV=(4500)(\frac{(1+\frac{0.06}{1})^{1\times10})-1}{\frac{0.06}{1}})\\\\\Rightarrow\ FV=(4500)(\frac{(1.06)^{10})-1}{0.06})\\\\\Rightarrow\ FV=(4500)(\frac{0.79084769654}{0.06})\\\\\Rightarrow\ FV=(4500)(13.1807949423)\\\\\Rightarrow\ FV=59313.5772407\approx59313.58 \ \

∴ the accumulated amount of the annuity= $59313.58

4 0
3 years ago
Is 12 rational or irrational ​
wlad13 [49]

Answer: Rational

Step-by-step explanation: 12 is a rational number because it can be expressed as the quotient of two integers: 12÷ 1

5 0
3 years ago
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