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andre [41]
3 years ago
8

A bag contains 18 coins consisting of quarters and dimes. The total value of the coins is $2.85. Which system of equations can b

e used to determine the number of quarters, q, and the number of dimes, d, in the bag?
Mathematics
2 answers:
tatuchka [14]3 years ago
5 0
There's nothing here to choose from but it should be something like : q + d = 18; .25q + .10d = 2.85
mixas84 [53]3 years ago
3 0

Answer:

Simultaneous Equation

Step-by-step explanation:

A bag contains 18 coins consisting of quarters and dimes. The total value of the coins is $2.85. Which system of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the bag?

To get the number of dimes and the number of quarters q will definitely have to be by simultaneous equation

let the number of dimes be d

let the number of quarters be q

let the cost of quarters/ one  be Q

let the cost of dime/one be  D

q+d=18--------------1

Qq+Dd=2.85.........2

from equation 1

q=18-d

substituting the value of q into equation 2

Q(18-d)+Dd=2.85

if cost of quarters/ one  is given and the cost of dime/one is also given we can go ahead to find

q and d

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4 years ago
A conditional statement is logically equivalent to a biconditional statement. True False pls help i have a test and i was absent
andreyandreev [35.5K]

Answer:

false.

Step-by-step explanation:

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A biconditional statement is:

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3 years ago
Verify the identity by transforming the left-hand side into the right-hand side.
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3 years ago
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stellarik [79]

Answer:

86 cm²

Step-by-step explanation:

Ok, so since 4 circles fit in the square, each circle's diameter must be 10.

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3 years ago
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