Charmaine, Ravi, and Deon sent a total of 107 text messages over their call phones during the weekend. Ravi sent 7 more messages
1 answer:
Number of messages sent by Charmaine=x=12
Number of text messages sent by Ravi = x+7 = 12+7 = 19
Number of text messages sent by Deon = 4(x+7) = 19*4 = 76
Step-by-step explanation:
Let
x be the number of messages Charmaine sent
Then
Ravi sent 7 more messages than Charmaine = x+7
Deon sent 4 times as many messages as Ravi = 4(x+7)
In total they sent 107 messages
So,
Number of messages sent by Charmaine=x=12
Number of text messages sent by Ravi = x+7 = 12+7 = 19
Number of text messages sent by Deon = 4(x+7) = 19*4 = 76
Keywords: Linear equations in one variable
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Answer:
The original price range of soda is $10 to $39.4
Step-by-step explanation:
Given as :
The discount coupon applied on grocery = 5%
The cost of soda after discount coupon ranges = $0.50 to $1.97
Let the original price range of soda = $A
Now, According to question
discount on original price = the cost after discount
So, initial original price = x
5% of x = $0.50
0.05 × x = $0.50
∴ x =
i.e x = $10
Again final original price = y
5% of y = $1.97
0.05 × y = $1.97
∴ y =
i.e y = $39.4
So, The original price range of soda = $A = $10 to $39.4
Hence, The original price range of soda is $10 to $39.4 Answer