What property is this 19+(11+37)A. Distributive B. Commutative porerty of addition C. Associative property of addition D. Identity Property of addition
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Answer 1
Answer:
That answer is C) Associative Property of Addition
Answer 2
Answer:
It is definently not a but I think it is b.
For which value or values are the expressions 15k+9 and 3(2k+3)+9k
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remember you can do anthing to an equaiton as long as you do it to both sides
I think you are missing a relation symbol at the end it could be an equals though (just my guess)
For which value or values are the expressions 15k+9 and 3(2k+3)+9k equal
15k+9=3(2k+3)+9k use distributive prpoerty which says a(b+c)=ab+ac so 3(2k+3)=6k+9
now we have 15k+9=6k+9+9k add like terms 15k+9=15k+9 subtract 9 15k=15k divide 15 k=k since this is a true statement, any number will work for k
k=all real numbers
If the solution to the equation is x = -2, find the value of a 4x-2(x-a)= 14
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x=-2
4x-2(x-a)=14
4*(-2) -2(-2-a)=14
-8+4+2a=14
-4+2a=14
2a=18
a=9
Twice the difference of a number and 5 is equal to three times the sum of the number and 5. Find the number
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I believe the expression would look like this:
(x-5)2 = (x+5)3
x would be -25
(-25-5)2 = (-25+5)3
-60 = -60
whitney says that to add fractions with diffrent denominatros, you always have to multiply the denominators to find the common unit;for example 1/4 1/6=6/24 4/24 Show whitney how she could have chosen a denominator smaller than 24,and solve the problem?
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You could multiply 1/4 by 3 and 1/6 by 2. You would get 3/12 and 2/12. The common denomonator is 12. 4 and 6 are both multiples of 12.
A train traveled 210 miles in 3.5 hours to its first stop. It then continued on traveling another 130 miles in 2.5 hours. What was the average speed of the train for the entire journey
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56.7 mph just a distance over time question, since they want the average speed you take the total distance divided by the total time
what two fractions name the partof the marbles that are black? F: 2/6 and 1/3 G: 2/4 and 1/2 H: 6/8 and 3/4 J: 2/8 and 1/4