A) .10 d + .25 q = 7.75
B) d + q = 40
Multiplying B) by -.10
B) -.10d -.10q = -4.0
Then adding this to A)
A) .10 d + .25 q = 7.75
.15q = 3.75
Quarters = 25
Therefore, dimes = 15
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Double-Check
A) .10 d + .25 q = 7.75
A) .10 * 15 d + .25 * 25 = 7.75
A) 1.50 + 6.25 = 7.75
Correct!!
Answer:
Cheyenne has a part-time job at which she gets paid by the hour. The table below shows how much money Cheyenne can earn for working variousCheyenne has a part-time job at which she gets paid by the hour. The table below shows how much money Cheyenne can earn for working various
Step-by-step explanation:
<u>Answer:</u>
The grade you make on your exam varies directly with the number of correct answers. The constant of variation is 5
<u>Solution:</u>
Given, The grade you make on your exam varies directly with the number of correct answers you get on the exam.
Answering 15 questions correctly will give you a grade of 75 what is the.
We have to find what is the Constant of variation.
Now, according to the given information, grade number of correct answer
Then, grade = c x number of correct answers, where c is constant of variation.
Now, substitute grade = 75 and number of correct answers = 15
![\text { Then, } 75=c \times 15 \rightarrow c=\frac{75}{15}=5](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Then%2C%20%7D%2075%3Dc%20%5Ctimes%2015%20%5Crightarrow%20c%3D%5Cfrac%7B75%7D%7B15%7D%3D5)
Hence, the constant of variation is 5
Answer:
41%
Step-by-step explanation:
Given the cash price is $500, the hire purchase price is calculated by summing the installment and down-payment:
![Hire \ Purchase \ Price=Installments +Downpayments\\\\=8\times 72.50+125\\\\=705](https://tex.z-dn.net/?f=Hire%20%5C%20Purchase%20%5C%20Price%3DInstallments%20%2BDownpayments%5C%5C%5C%5C%3D8%5Ctimes%2072.50%2B125%5C%5C%5C%5C%3D705)
#Percentage increase in price is the difference between the hire purchase price and list price as a percentage of the list price:
![\bigtriangleup Price=705-500\\\\=205\\\\\%\bigtriangleup Price=\frac{\bigtriangleup Price}{500}\times 100\%\\\\\\=\frac{205}{500}\times100\%\\\\=41\%](https://tex.z-dn.net/?f=%5Cbigtriangleup%20Price%3D705-500%5C%5C%5C%5C%3D205%5C%5C%5C%5C%5C%25%5Cbigtriangleup%20Price%3D%5Cfrac%7B%5Cbigtriangleup%20Price%7D%7B500%7D%5Ctimes%20100%5C%25%5C%5C%5C%5C%5C%5C%3D%5Cfrac%7B205%7D%7B500%7D%5Ctimes100%5C%25%5C%5C%5C%5C%3D41%5C%25)
Hence, the % increase in price is 41%
Answer:
B
Step-by-step explanation: