The car is traveling 0.5 miles per minute
Answer:
50°, 60°, 70°
Step-by-step explanation:
Sum the parts of the ratio, 5 + 6 + 7 = 18 parts
The 3 angles in a triangle sum to 180° , then
180° ÷ 18 = 10° ← value of 1 part of the ratio, then
5 parts = 5 × 10° = 50°
6 parts = 6 × 10° = 60°
7 parts = 7 × 10° = 70°
The angle measures of the triangle are 50° , 60° , 70°
Answer:
b=5
Step-by-step explanation:
So, they basically equal each other since they both equal a.
6b+20=4b+30
Your first step is to move the variable to one side, by that I mean to subtract. You have to subtract the smallest number that has a variable, in this case it would be 4b.
6b+20= 4b+30
-4b -4b
Once you have subtracted the variable, and now that there is only one variable in the equation, you have to subtract 20, since that is the opposite of adding.
2b+20=30
-20 -20
Then, you have to divide 2 from 10, since that is the opposite of multiplying.
<u>2b</u>=<u>10</u>
2 2
Conclusion- b=5
Consider a set M, and an operation *.
Let a and b be in M, then M is closed under operation * if :
a*b, and b*a produce an element of M
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The set of negative numbers (set M) is not closed under subtraction (the operation *).
Consider 2 numbers a=-9 and b=-6 which certainly are in M.
-9*(-6) = -9-(-6)=-9+6=-3 ∈ M (note that * is the regular subtraction -)
(-6)*(-9)=-6-(-9)=-6+9=3 ∉ M
18 and 24 are the two numbers.