3w minus w is 2w, +4w is 6w. subtract 15 w both sides of the equation to get 33 on one side, and 9w on the other side. divide 9 on both sides, and the nswer is 3 and 2/3.
First, start by adding like variables on the same side of the equal sign
Next, subtract 15w from both sides to get like terms on the same side
Finally, divide -9 on both sides to get the variable alone
Juan’s Savings
Weeks
3, 6, 9, 12
Amount saved 19, 28, 37, 46
A.
y – 3 = −3(x – 19)
B.
y – 28 = 3(x – 6)
C.
y + 9 = −3(x + 37)
D.
y + 46 = 3(x – 12)
I'm pretty sure it's B.
Juan always saves the same amount from his weekly allowance, then the equation which represents the situation is y -28 = 3(x - 6). Therefore, option B is correct.
Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation. For an unknown quantity represented by an unknown variable, equations are then solved to determine its value. It is clear that a statement is not even an equation if there is no "equal to" sign in it.
A solution is obtained by entering 3 (weeks) for "x" and 19 (savings made) for "y," which results in the equation 0=0.
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reading her science book?
Pamela spent 4/15 of an hour solving math problems and 2/5 of an hour reading her science book.
To find the fraction of the hour Pamela spent on each activity, we need to multiply the fraction of the overall time she spent doing homework by the fraction of that time she spent on each specific activity.
So, Pamela spent 4/15 of an hour solving math problems and 2/5 of an hour reading her science book.
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Some of the fractions that are equivalent to 4/7 are 8/14, 12/21, 16/28, 20/35 e.t.c
Equivalentexpressions are expressions that work the same even though they look different.
If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.
For example , 5 × 4 = 20 and 2 × 10 = 20 , so the two expressions are equivalent and they have thesame value
To find the equivalent of 4/7, we can multiply through by a factor of 2, 3 , 4 ,5 e.t.c
Therefore 4/7 = 8/14 = 12/21 = 16/28 = 20/35
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8/14 12/21 16/28 these are some of the fractions that came to mind