Let's say, the amount that each side was increased was "a"
so, it was 5 wide and 12 long, now it's 5+a wide and 12+a long
we know the area is 120, so whatever "a" is, we know that
(5+a)(12+a) = 120
so
use those factors, solve for "a"
The temperature dropped 4 degrees each hour
Answer:
The probability of picking the required dollar bill is 0.155 which means a "NO" and my expectations aren't that high
Step-by-step explanation:
Please refer to the attached image for explanations
Answer:
<em>The solution to the system of equation is (0, 2). The equation has only one solution.</em>
Step-by-step explanation:
Given the system of equations
y= x + 2 .... 1
2y = x + 4 ... 2
Substitute equation 1 into 2;
From 2; 2y = x+4
2(x+2) = x+4
2x+4 = x+4
2x - x = 4-4
x = 0
Substitute x = 0 into 1;
From 1; y = x+2
y = 0+2
y = 2
Hence the solution to the system of equation is (0, 2). The equation has only one solution.
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Answer:
Step-by-step explanation:
The monthly rents paid by the 10 people are
845, 875, 890,900,960, 965, 990, 1015, 1045, 1065.
The mean rent is determined by
Sum of rent paid/ total number of people that paid rent.
Mean = (845+875+890+900+960+965+990+1015+1045+1065) /10 = 9550/10 = 955
Median = (960+965)/2 =1925/2 = 962.5
Suppose that one of the people moves, her rent changes from 1065 to 915, the mean becomes
(845+875+890+900+ 915 + 960+965+990+1015+1045)/10 =9400/10 = 940
The median is (915 +960)/2 =1875/2 = 937.5
Therefore,
a) the mean decreases by
955 - 940 = 15
b) the median decreases by
962.5 - 937.5= 25
