Because we are given that the two figures are already similar, we can set up a proportional relationship to determine the value of x. Since the larger rectangle has a width of 21 and the smaller rectangle has a width of 7, those values can be used as the numerators in the proportion. Since the larger rectangle's length is x plus the additional 3 units on the smaller rectangle, x+3 and 3 can be used as the denominators in the proportion.

Next, we set up the proportion as follows:

$\frac{21}{x+3} =\frac{7}{3}$

Then, you cross multiply to get the equation:

$63=7x+21$

After solving down algebraically, you get the value of x to be 6.

I hope this helps!

5 0

2 years ago

4th task Help please

yaroslaw [1]

1000+(x)(100)=
Explanation
(100)(10)=1000 for the money for triple doubles
He gets 100 for every triple double so you times that by x amount of games of triple doubles he has.

3 0

3 years ago

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