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olchik [2.2K]
3 years ago
11

You have 10 fewer quarters than dimes and 5 fewer nickels than quarters. the total value of the coins is $4.75. Set up a system

of equations to find out how many nickels, quarters, and dimes you have
Mathematics
1 answer:
Yanka [14]3 years ago
6 0
So 
x- quarters
y - dimes
z- nickels

The system of equations would be
x+10=y
z+5=x
x+y+z= 4.75
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Find the value of X! Plz help, timed quiz!
Soloha48 [4]

Answer:

14) x=30

because 30 times 2 is 60

15) x=30

180-120=60

60/2=30

16)  x= 36

because 180- 146 is 34

34+2= 36

hope this helps!

3 0
3 years ago
HURRRY! ILL GIVE BRAINLEST Mrs. Jordan surveyed all of her students to find out which testing format they prefer. Of the 120 stu
taurus [48]

Answer:

50%

Step-by-step explanation:

30+10=40

40+20=60

120-60=60

60 is 50% of 120

3 0
3 years ago
Read 2 more answers
You are the manager of a monopoly. A typical consumer's inverse demand function for your firm's product is P = 250- 4Q, and your
kondor19780726 [428]

Answer:

(1) 240-8Q=0240−8Q=0  (2) 225 (3) it is very necessary that the direct elasticity of demand for a product at a price from several buyers be different significantly;  so that customers are easily known, that further goods resale by buyers is not possible

Step-by-step explanation:

Solution

Given that:

(1) TR=∫MR=250Q−4Q  

Pr=TR-TC=250Q-4Q² - 10Q=240Q−4Q²  

Thus,

Pr   =240−8Q

240-8Q=0240−8Q=0

(2) Q=30

Now,

p=250-4 * 30=130

p=100

so.

100=250−4Q

Q=37.5

Pr=240×37.5−4×37.5²

=3375

Hence,

ΔPr=3600−3375=225

(3) For the execution of price discrimination by a monopolist, it is very important that the direct elasticity of demand for a product at a price from different buyers be remarkably different; so that  customers are easily known, that further goods resale by buyers is not done.

3 0
3 years ago
Is 206 – 3x) + x equivalent to 2(3x) + x + 12?
klasskru [66]

Answer:

Step-by-step explanation:(206-3x)+x

2(3x)+x+12

ok as i think one no is statsfy this equation .

5 0
3 years ago
Which ordered pair is a solution of the equation 3y-2 = 8x + 5
Andreas93 [3]
An easy way to do this is to plug in your answer choices in the correct variable places.

A - 1,5 so 3 (5) -2 = 13 //  8 (1) + 5 = 13
Therefore  does 13 = 13? Yes

B. 3,9 so 3 (9) -2 = 25 // 8 (3) + 5 = 29
Therefore does 25 = 29? NO, so choice B is out

C.-4,9 so 3 (9) -2 = 25 // 8 (-4) + 5 = -27
Does 25 = -27? NO, so C is out

D. -2,3 so 3 (3 )-2 = 7 // 8 (-2) + 5 = -11
Does 7 = -11? NO, so D is out

YOUR ANSWER IS A
6 0
4 years ago
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