Hey!
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Solution:
Remember to follow PEMDAS.
= -2 - (-8) + 4 - (-7) / 3.5
= -2 - (-8) + 4 - (-2)
= 6 + 4 - (-2)
= 10 - (-2)
= 12
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Answer:
12
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Hope This Helped! Good Luck!
Solution
Provided :-
• I have $138
• I save $12 per week
• Friend have $ 98
• He saves $17 per week
Let the number of weeks required to have same balance be x
→ 138 + 12x = 98 + 17x
→ 138 - 98 = 17x - 12x
→ 40 = 5x
→ x = 8
So we need 8 weeks
The frequency in a study like this means the number of people which chose that option. Since the patients must chose one of them, then the sum of all the frequencies must be equal to the number of patients that answered the research. With this in mind we can find the missing value, x.
There were 36 patients that reported no pain.
Answer:
5) 975 girls 6) $1440 7) $1000 8) 472
Step-by-step explanation: For 5, cross multiply and to get 975 girls. Do the same for 6. For 7, it says that the television is $550, and it is only 55% of her savings. Therefore, to find her original amount, you will put 550 in the numerator and x in the denominator, and cross multiply 55/100 to get 1000. For 8, do the same thing, and put 354 for the numerator, x for denominator, 75/100 and cross multiply.
AB=BC=CD together with the fact the horizontal lines are parallel implies that HG=GF=FE (can be proved using triangle similarity). So knowing FE=5.1 implies FG=5.1
Since we now know that the horizontal lines are equidistant, it means that ML=LK=KJ (same argument as above). Therefore KL=7.6.
Let me know if you have questions!