Answer:
(x, y) = (2 2/9, -1 4/9)
Step-by-step explanation:
Equate the values of y and solve for x.
1/4x -2 = -2x +3
(2 1/4)x = 5 . . . . . . . . add 2+2x to both sides
x = 20/9 = 2 2/9 . . . multiply by 4/9
y = -2(2 2/9) +3 = -4 4/9 +3 . . . . substitute for x in the second equation
y = -1 4/9
The solution is x = 2 2/9, y = -1 4/9.
The equation you can use is x + 3x = 428 with x as the number of cheeseburgers and 3x the number of hamburgers
you solve for x and get 4x= 428 and x=107
so 321 hamburgers were sold that day.
Answer:
35
Step-by-step explanation:
Maneesha: 75 % × 37 sunflower seeds equals to 27.75
27.75 is a decimal so rounded off they become 28
her friend: 1/3 × 21 = 7 pumpkin seeds
the total of the seeds will be 28 + 7 = 35 seeds
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<em> </em><em> </em><em> </em><em> </em><em>N:</em><em>B </em><em>if</em><em> </em><em>you're </em><em>using</em><em> </em><em>decimal</em><em> </em><em>calculations</em><em>.</em><em> </em><em>T</em><em>he</em><em> </em><em>total</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>a</em><em>mount</em><em> </em><em>of</em><em> </em><em>seeds</em><em> </em><em>will </em><em>be</em><em> </em><em>34</em><em>.</em><em>7</em><em>5</em>
