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SashulF [63]
3 years ago
14

The cost to manufacture x pairs of sunglasses can be represented by a function, C(x). If it cost 398 to manufacture 4 pairs of s

unglasses, which of the following is true
a) c(4)=99.50

b) c(398)=4

c) c(4)=398

d) c(99.50)=1

can someone solve it and show steps please
Mathematics
1 answer:
insens350 [35]3 years ago
6 0

398÷4= 99.5

$398 is your total

C=Cost of glasses(99.50)

X=Pairs of Glasses(4)

The answer is <u>C</u> because c equals 99.50, X equals 4.

I dont know if you can understand this is the best way that I can show u!

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The cost for 5 adults and 3 children to attend a show is $210. ( /5)
liraira [26]

Answer: i. Cost of adult ticket = $ 30

ii.  Cost of child ticket = $20

Step-by-step explanation:

Define variables:

Let x= cost of 1 adult tickets , y= cost of 1 child tickets.

Form linear equations:

5x+3y = 210      (i)

2x+5y= 160  (ii)

Multiply (i) by 2 and (ii) by 5

10x +6y = 420       (iii)

10x+25y = 800        (iv)

Eliminate (iii) from (iv)

19y = 380

⇒ y= 20

Put this in (i)

5x+3(20)=210\Rightarrow\ 5x+60 = 210\\\\\Rightarrow\ 5x=150\\\\\Rightarrow\ x=30

Hence, Cost of adult ticket = $ 30 and Cost of child ticket = $20

4 0
3 years ago
A bag contains only red, green, brown and yellow marbles.
Mila [183]

Answer:

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8 0
3 years ago
Find the missing number in this proportion. 3/16 = 5/?
Ludmilka [50]
3/16=5/x
times both sides by 16x (aka cross multiply
3x=5*16
3x=80
divide both sides by 3
x=80/3
x=26 and 2/3
the missing number is 80/3 or 26 and 2/3
8 0
3 years ago
Edi plays 1/4 of a song in 1/8 of a minute how many minutes will he need to play a full song
Neporo4naja [7]

Answer:

Let's see what to do buddy...

Step-by-step explanation:

first \:  \:  \:  \frac{1}{4} \:  \:  \:of \:a \: song \: needs \:  \frac{1}{8} \:  \: minute. \\  \\ second \:  \:  \:  \frac{1}{4} \:  \: of \: a \: song \: needs \:  \frac{1}{8} \: minute \: too. \\  \\ also \: the \: third \: and \: fourth \:  \:  \:  \frac{1}{4} \:  \:  \:  of  \: a \: song \: need \:  \frac{1}{8} \: minute \: . \\  \\ so \: we \: have \: completly \: have \: 4 \times  \frac{1}{8} \\  \\ which \: means \: edi \: needs \: 4 \times  \frac{1}{8}  =  \frac{4}{8} =  \frac{1}{2} \:  minute \: to \: play \: all \: the \: song.

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

3 0
3 years ago
HELP PLEASE I DON'T UNDERSTAND
liraira [26]
If I counted correctly, the answer would be 52/150. You just need to simplify the fraction. I'll recount soon, and update if it changes.
3 0
3 years ago
Read 2 more answers
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