Let "b" represent the number of biscuits Jacky baked.
.. container A holds (3/7)b
.. container B holds (1 -3/7)*(5/8)b = (5/14)b
.. container C holds (1 -3/7 -5/14)b = (3/14)b = 168
Then
.. b = 168/(3/14) = 784
Jacky baked 784 biscuits.
Answer:
4
Step-by-step explanation:
40 x 4 = 160
100 + (15 x 4) = 160
15x4=60, btw
Answer:
The equation representing the given situation is 1.50 X + 2 Y = 90
Step-by-step explanation:
Let X be the number of hamburgers purchased.
The cost of 1 hamburger = $1.50
So, the amount spent on X burgers = X times (cost of each burger)
= X($1.50) = 1.50 X
Y be the number of turkey burgers purchased.
The cost of 1 turkey burger = $2
So, the amount spent on Y turkey burgers = Y times (cost of each burger)
= Y($2) = 2 Y
Total amount spent on both type both burgers= $ 90
⇒ Money spent on hamburger + Money spent on turkey burger = $90
or, 1.50 X + 2 Y = $90
Hence, the equation representing the given situation
is 1.50 X + 2 Y = 90
Lzlsjxkskalsokxjxjsks :)!
2W + 2L = 820
<span>LW = 42,000 or L = 42,000/W </span>
<span>substitute second equation into first equation: </span>
<span>2W + 2(42,000/W) = 820 </span>
<span>2W + 84,000/W = 820 </span>
<span>2W^2/W + 84,000/W = 820W/W </span>
<span>2W^2 - 820W + 84,000 = 0 </span>
<span>quadratic formula: </span>
<span>W = [820 +/- SQR(672,400 - 4(2)(84,000))]/2(2) </span>
<span>W = [820 +/- 20]/4 </span>
<span>W = 200, 210 </span>
<span>using second equation: </span>
<span>L = 42,000/200, 42,000/210 = 210, 200 </span>
<span>The dimensions of the parking lot are 200ft by 210ft.</span>
