Answer
x=-2 and y=-3
Step-by-step explanation:
Step: Solvey=5x+7for y:
Step: Substitute5x+7 for y in 3x+y=−9:
3x+y=−9
3x+5x+7=−9
8x+7=−9(Simplify both sides of the equation)
8x+7+−7=−9+−7(Add -7 to both sides)
8x=−16
8x/8=−16/8
(Divide both sides by 8)
x=−2
Step: Substitute−2 for x in y=5x+7:
y=5x+7
y=(5)(−2)+7
y=−3(Simplify both sides of the equation)
Answer: The penguin will walk 75.15 feet in 45 sec
Answer:
13t + 6h = $332
Step-by-step explanation:
The variable for shirts is t. The variable for hats is h.
8 shirts plus 5 shirts is 13 shirts. (13t)
5 hats plus 1 hat is 6 hats. (6h)
$220 plus $112 is $332. The total cost will be $332.
13t + 6h = $332
Answer: 4 tiles
Explanation: if the square has a width of one foot then the length is also one foot since all sides are equal. Therefore 4 squares can fit along a 4 foot wall
Divide each side of the equation by 0.3 .
