Answer:
Rasheed bought 3 packages of chocolate and 5 packages of toffee.
Step-by-step explanation:
In this case we have to found the number of bars that multiplied by the fractions presented give us an integer number and meets with the fact that the bars are an odd number because the packages came in packs of two bars.
For the case of the chocolate we have to find a number that meets this characteristics, we try with the number 6:
For chocolate Rasheed bought 3 packages, we can see that 6 bars meet the asked.
For the case of toffee, we try with number 10:
For toffee Rasheed bought 5 packages, we can see that 10 bars meet the asked.
Rasheed bought 3 packages of chocolate and 5 packages of toffee.
1. -35x+710 = -25x+570
-10x=-140
x=14
In 14 weeks, Pedro and Maria's accounts will have the same amount.
2. 9x+90 = 13x+50
-4x=-40
x=10
For 10 square yards of carpeting will the cost be the same for both stores.
3. 0.06x+44 = 0.09x+35
-0.09x= -9
x=100
For 100 miles both companies will charge the same price.
4. 15x+250 = 20x+200
-5x= -50
x= 10
It will take 10 weeks for the amount in each savings account to be the same.
5. 25x+250 = 50x
-25x = -250
x = 10
10 stereos must be sold to make the same amount of money under both plans.
Hope this helps!
Answer:
A -4±3
Step-by-step explanation:
Answer: 84.13%
Step-by-step explanation:
Given : The scores in a a language test with normally distributed.
Mean : 
Standard deviation: 
Let x be the random variable that represents the scores of students.
Formula for z-score: 
For x= 60 , we have
The probability f test takers scored a 60 or above :-
Hence, the percentage of test takers scored a 60 or above = 84.13%
