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ruslelena [56]
3 years ago
13

Consider a machine that exchange quarters for dollar bills. Inserting one dollar bill returns four quarters and you may insert u

p to five one dollar bills at a time. Is 7 a possible input for the relation this change machine represents ?
Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0
No because it says you can only insert up to 5 Dollar Bills unless you put them in one at a time.
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Gail has eight united states coins. Their total value is 93 cents. What coins does she have?
Kryger [21]
8 coins = $0.93

3 quarters = $0.75
1 dime = $0.10
1 nickel = $0.05
3 pennies = $0.03

3 + 1 + 1 + 3 = 8 coins

$0.75 + $0.10 + $0.05 + $0.03 = $0.93

5 0
3 years ago
Write the equation of a line that passes the point (-6,9)and is perpendicular to a line that passes through the points (-2,1) an
stepladder [879]

Answer:

y = 4/3x + 1.

Step-by-step explanation:

The equation of the lines passing through (2,1) and (6,7) is:

y - 7 = (7-1)/(6- -2)(x - 6)

y - 7 = 6/8(x - 6)

y = 3/4(x - 6) + 7

y = 3/4x + 5/2.

So the line perpendicular to it has slope -1/3/4 = -4/3:

y - 9 = -4/3(x  + 6)

y = -4/3 x  - 8 + 9

y = 4/3x + 1.

6 0
3 years ago
What fraction of 60 is 18
nordsb [41]
10/3 

hope this helped
3 0
3 years ago
The domain of F(x) is the set of all numbers greater than or equal to 0 and less than it equal to 2
antoniya [11.8K]
Its false cause its not the set of all numbers
7 0
3 years ago
Please help :/ ill give brainlly -.-
Olin [163]

Answer:

2 50 mL bottles

Step-by-step explanation:

Find the cost per mL

55 / 80 mL =.6875 per mL

Now find the price of the buy one get one 1/2 off

45 + 1/2 (45) = 45+22.5=67.5

That will be for 50+50 mL

67.5 /100 ml =.675 per mL

The 100 mL is a better deal

8 0
3 years ago
Read 2 more answers
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