X = 12 and y = 5
I found this out by starting out with x = 10 and y = 7 (because 10 + 7 equals 17), and escalating while trying out every number with both equations.
Answer:
- A matches with 5.
- B matches with 3.
- C matches with 2.
- D matches with 6.
- E matches with 4.
- F matches with 1.
Step-by-step explanation:
To find the inverse of a function
, we let
and then solve again for y.
For example, using
, we will let
, giving
. This means that
, and thus
.
Using similar logic, we see that:
- A matches with 5.
- B matches with 3.
- C matches with 2.
- D matches with 6.
- E matches with 4.
- F matches with 1.
They would be 8cm far apart.
Since it’s 35% off, but there’s a 8% tax,
35 - 8 = 27%
You get a 27% discount.
69 x 0.27 = 18.63
The total cost is $18.63
Connor has 14 quarters and 28 dimes.
Step-by-step explanation:
Given,
Worth of coins = $6.30 = 6.30*100 = 630 cents
We know that,
1 quarter = 25 cents
1 dime = 10 cents
Let,
Quarter = x
Dime = y
According to given statement;
25x+10y=630 Eqn 1
The number of dimes is 14 more than the number of quarters
y = x+14 Eqn 2
Putting value of y from Eqn 2 in Eqn 1

Dividing both sides by 35

Putting x=14 in Eqn 2

Connor has 14 quarters and 28 dimes.
Keywords: linear equation, substitution method
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