42 minutes are spent on practicing flip tricks and 48 minutes are spent on practicing slides.
Step-by-step explanation:
Total practicing time = 90 minutes
Ratio of time spent on flip tricks to slides = 7:8
Let,
x be the total time spent on flip tricks and slides, therefore,
Time spent of flip tricks and slides = 7x+8x = 15x
Total time spent practicing = 15x
[tex]15x=90[/tex]
Dividing both sides by 15
[tex]\frac{15x}{15}=\frac{90}{15}\\x=6[/tex]
Time spent of flip tricks = 7x = 7*6 = 42 minutes
Time spent on slides = 8x = 8*6 = 48 minutes
42 minutes are spent on practicing flip tricks and 48 minutes are spent on practicing slides.
Keywords: ratio, division
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