Answer:
Step-by-step explanation:19 and 31
Caitlin has 27 $5 bills and 54 $10 bills.
Step-by-step explanation:
Given,
Worth of $5 and $10 bills = $675
Let,
Number of $5 bills = x
Number of $10 bills = y
According to given statement;
5x+10y=675 Eqn 1
She has twice as many $10 bills as $5 bills.
y=2x Eqn 2
Putting value of y from Eqn 2 in Eqn 1

Dividing both sides by 25

Putting x=27 in Eqn 2

Caitlin has 27 $5 bills and 54 $10 bills.
Keywords: linear equation, substitution method
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(4)^36
Multiply the exponent 6 by 6 to get the new exponent of 36
1 out of 6 cubes is the probability of chooseing 1
<h3>
Answer: (4, -3)</h3>
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Work Shown
We'll be using these vector properties
- Rule 1: (a,b) + (c,d) = (a+c, b+d)
- Rule 2: k*(a,b) = (k*a, k*b)
To get the following
-2u + v = -2*(-1, 5) + (2,7)
-2u + v = (-2*(-1), -2*5) + (2,7) .... apply rule 2
-2u + v = (2, -10) + (2, 7)
-2u + v = (2+2, -10+7) .... use rule 1
-2u + v = (4, -3)