In the savings account 200+50x=y is the algebraic expression
In the checking account 100+30x=y is the algebraic expression
Answer:
x= 20,y= −36
Step-by-step explanation:
3x+2y=−12
2x+y=4
Subtract 2x
from both sides of the equation.
y=4−2x
3x+2y=−12
Replace all occurrences of y
with 4−2x
in each equation.
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−x+8=−12
y=4−2x
Solve for x
in −x+8=−12
.
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x=20
y=4−2x
Replace all occurrences of x
with 20
in each equation.
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y=−36
x=20
The solution to the system is the complete set of ordered pairs that are valid solutions.
(20,−36)
The result can be shown in multiple forms.
Point Form:
(20,−36)
Equation Form:
x=20,y=−36
Answer:
Option D
Step-by-step explanation:
f(x) = -4x + 2
f(-1) = -4(-1) + 2 = 4 + 2 = 6
Answer:
The better deal would be to buy the 50 envelopes for a total of $2.49
Step-by-step explanation:
Identify what you know:
1) You can buy a pack of 50 envelopes for $2.49
2) You can buy 90 envelopes for $5.50
Divide the number of enveloped by the prices, to find the price of ONE envelope in the pack. See:
$2.49/50 envelopes = $0.0498
$5.50/90 envelopes = $0.061
Also... where is THIS person buying envelopes... I want that price....
Answer:
1215
Step-by-step explanation:
It is divisible by 5 because the number in the ones place is 5.
I used a calculator to check if it is divisible by 3
