Answer:
110 and 70
Step-by-step explanation:
opposite sides of parallelograms are equal so you can set 2x+30 equal to 5x-90
when you do this:
2x+30=5x-90
-2x -2x
30=3x-90
+90 +90
120=3x
/3 /3
40=x
now you can plug 40 in for 5x-90
example:
5(40)-90
200-90
110
m<r=110
<r and <s are supplementary because they are consecutive angles
supplementary is when two angles add up to 180
since <r is 110, do 180-110 and get 70
m<s = 70
Answer:
0.016
Step-by-step explanation:
To find the quotient, we must divide .4 by 25.
Let's think of .4 as 0.4
How many times will 0.4 go into 25?
0.016 times.
Add all the numbers together, the answer is 172 feet
Cows(m) have 4 legs, chickens(c) have 2. Setting up a system of equations 104=4m+2c and 42=m+c. Solved for c the latter equation becomes 42-m=c. Using substitution in the first equation 104=4m+2(42-m). Distribute: 104=4m+84-2m. Combine like terms: 104=2m+84. Isolate variable term: 104-84=2m. Variable coefficient 1: 20/2=10=m. 42-10=32=c. <u>10 cows and 32 chickens.</u>
Answer: 67.33
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Explanation:
S = sum of the 50 heights
Dividing the sum S over 50 gets us the average height
S/50 = 68
S = 50*68
S = 3400
So adding up the 50 heights leads to 3400
The two values 82 and 86 are kicked out, so we subtract them off 3400
3400-82-86 = 3232
Now divide by 48 since we excluded 2 values from the initial 50
3232/48 = 67.333333
which is approximate
This rounds to 67.33