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3 years ago

I need help with two questions, and an explanation on how to do them please

Mathematics

1 answer:

Lilit [14]3 years ago

6 0

$39 multiply that by 1/3 OR 39 divide that by 3 . That will get 13 .

39 multiply that by 1/3 OR 39 divide that by 4 . You will get 9.75

Add 13 and 9.75

13+9.75=22.75

Now you subtract 39 - 22.75

You will get 16.25

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A collector bought a rare coin for $30. The coin is now valued at $37.50. What is the percent increase in value?

AlladinOne [14]

Answer:

Step-by-step explanation:

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3 years ago

Suppose demand d for a company's product at cost x is predicted by the

11111nata11111 [884]

Answer:

0.36x ² + 815.04x + 11,340

Step-by-step explanation:

Revenue = price × quantity

p(x) = x+14

d(x) = 0.36x + 810

Revenue = price × quantity

= (x + 14) * (0.36x + 810)

= 0.36x² + 810x + 5.04x + 11,340

= 0.36x ² + 815.04x + 11,340

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3 years ago

Which of the numbers below could be terms in the sequence an=4n-7 A)29 B)21 C)20 D)28

natali 33 [55]

Answer:

A)29 and B) 21,

Step-by-step explanation:

First,in the sequence $a_n=4n-7$ , the parameter $n$ must to be a integer.

Second, we need to solve the equations by $n$ .

$n=(a_n+7)/4$

All the option in the problem represent an $a_n$

Then, we need to prove all number in the options, if the result is a integer number, this option can be part of the sequence.

For A)

$n=(29+7)/4=9\\$

For B)

$n=(21+7)/4=7\\$

For C)

$n=(20+7)/4=6.75\\$

For D)

$n=(28+7)/4=8.75\\$

Only A) and B) only A and B meet the requirement

4 0

3 years ago

What is the measure of 2?

Fiesta28 [93]

Answer:

Value of x:

${ \tt{(7x + 1) \degree + (18x + 4) \degree = 180 \degree}} \\ { \tt{25x + 5 = 180}} \\ { \tt{25x = 175}} \\ x = 7$

Finding m‹2 :

${ \tt{m \angle2 = (7x + 1) \degree}} \\ { \tt{m \angle2 = (7 \times 7) + 1}} \\ { \bf{m \angle2 = 50 \degree}}$

8 0

3 years ago

Read 2 more answers

Find sum or difference.<br><br>-1/2 + 1/3

Free_Kalibri [48]

2/5 is the answer unless your multiplying

6 0

3 years ago