Let a = weight of large box in pounds
Let b = weight of small box in pounds
(1) 65a + 70b=4000
(2) a+b=60
Now we can simultaneously solve these equations.
a = 60 - b. Hence 65(60 - b) + 70b = 4000 So 3900 + 5b = 4000 and 100 = 5b hence b = 20.
SImilarly a = 40. Now we can verify too by putting in the calculated values.
Answer:
6,489
Step-by-step explanation:
first you would multiply 7 and 9, which would be 63
7 x 9 = 63
then you would multiply 63 by 103 since they are being multiplied
63 x 103 = 6,489
Answer: if 1/2in then 140 if 12in then 1,935,360
Step-by-step explanation: It's v=a^3, a being the length of a side. Since we know the length...
V=12^3, which equals 1728. So each cube has a volume of 1728 inches. Now, multiply that by 1120. You get...
1,935,360!
Answer:
<u>46.3</u>
Step-by-step explanation:
1. find perimeter of rectangle
2. then find perimeter of semicircle
3. add both answer and round to nearest tenth
1. 4*2 + 14*2 = 36
2. πr + 2r
π*2 + 2*2 = 10.2831853072
3. 36 + 10.2831853072 = 46.2831853072
46.2831853072 rounded to the nearest tenth is <u>46.3</u>
First, find the slope of the line using the formula for slope:
m = (y2 - y1) / (x2 - x1)
m = (4 - (-2)) / (-3 - 2) = -6/5
Then, use the point-slope formula using a point that you were given and the slope that you calculated.
y - y1 = m(x - x1)
y - 4 = (-6/5)(x + 3)
Then, simply get y alone.
y = (-6/5)x + 2/5
