Answer:
B. 6Fx + 6Gy = 6H
Qx + Ry = S
Step-by-step explanation:
Equivalent equations can be created many ways. One of the simplest is to multiply both sides of the equation by the same number. In the answer above, the first equation has been multiplied by 6. Nothing has been done to the second equation.
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<em>Comments on other choices</em>
A: some terms have been multiplied by 6. This changes the equation(s) so they are no longer equivalent to the ones you started with.
B: the correct choice
C: see A.
D: the first equation has been multiplied by 6, so that is equivalent to the original. The second equation has the sign of one of the terms changed, so it is now a different equation.
Answer:
2.41 * n = y
Step-by-step explanation:
From the table, we can notice that the value;
y/n is a constant for each of the rows
this represents the individual costs of each of the books
So, we have it that;
7.23/3 = 4.82/2 = 9.64/4 = $2.41
So, the books have a unit cost of $2.41
Hence, by multiplying the number of books n by 2.41 we can get the cost y
So mathematically, we have the relation as;
2.41 * n = y
Answer:
Step-by-step explanation:
Less than
When comparing to thing with same rate, set up a proportion:
Inches/cost
13/.78=33/x
(13)(x)=(.78)(33) [cross multiplied]
13x=25.74 [simplified]
13/13x=25.74/13 [division property]
x=1.98
33 inches of wire will cost $1.98.
