Let use h= hotdogs price and c=chips price
we know that
4h +4c= 17
5h+3c=17.75
t use the elimination method we will multiply the first equation by 5 and the second one by (-4)
20h +20c=85
-20h -12c= -71
8c=14, we will divide by 8 both side and c=1.75, so a bag of potato chips cost $ 1.75
now we will substitute the c in the first equation
4h+7=17 therefore 4h=17-7, 4h=10, h=2.50
a bag of potato chips is 1.75
a hot dog costs 2.50
Answer:
43
Step-by-step explanation:
180-108-29=43
The sum of internal angles is 180
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Explanation:</h2><h2>
</h2>
Here we need to set a system of two linear equations in two variables. So:
- <em>The sum of digits in a two digit number formed by two digits from 1 to 9 is 8:</em>
Let 
be those digits, then:
- <em>If 9 is added to a number then both the digits become equal. find the number:</em>
<em />
<em />
<em />
<em />
But from eq 1:
Substituting y into the expression 1:
The x-value will be found by hit and trial, so:
We have to reject this solution because digits are different.
We have to reject this solution because digits are different.
<em>Then this is a two digit number formed by two equal digits. </em>
Finally, the number is:
44
Answer:
$8.11
Step-by-step explanation:
Original Price: $16.95
Discount: 54% Decimal Form: .54
Tax: 4% Decimal Form: .04
Let's start with the discount...
16.95 x .54 =9.153 Round = 9.15
16.95 - 9.15=7.80
Now, for the tax..
7.80 x .04=0.312 Round = 0.31
7.80 + 0.31=8.11
Hence. the Selling price is $8.11
Answer: 120 cm.
Step-by-step explanation: First, add the two bases together (10+6) and you'll get 16. Then, multiply the height with the sum of the two bases (15 x 16) and you'll get 240. Now, multiply it with 1/2 (or divide by 2) and you'll get 120. So, 120 cm. is your answer.
