So, firstly, in order for us to know how much is each baseball card pack, we divide 12 dollars by 4 and we get 3. Therefore, each baseball card pack costs $3. So for 21 dollars, he can purchase 7 baseball card packs. 21 divided by 3 is 7. Hope this answers your question. Have a great day!

3 0

3 years ago

Solve -3(2x-9) = -3.<br><br>A. 5<br>B. -4<br>C. -5

Vladimir [108]

Answer:

Step-by-step explanation:

3 0

3 years ago

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Two bicyclists leave the center of town at the same time. One heads due north and the other heads due west. Later, the two cycli

Ad libitum [116K]

This situation is represented in annex.
From Pythagorean theorem you've got equation:
$x^2+(x+5)^2=25 \\ \\ \hbox{From formula} \ \ \ (a+b)^2 = a^2+2ab+b^2: \\ \\ x^2+x^2+10x+25=25 \\ 2x^2+10x=0 \\ \\ \hbox{Factor out} \ \ 2x: \\ 2x(x+5)=0 \\ \\ \hbox{So you've got:} \\ \\ x_1=0 \\ x_2=-5$

There isn't any solutions where x>0, so this situation is IMPOSSIBLE.

Did you write correctly this question....?

3 0

3 years ago

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Jenny served a volleyball​

Jenny served a volleyball