The answer is 320,000,000 check photo for work
Answer:
$28.5
Step-by-step explanation:
14-6.5=7.5
7.5x$3.8=28.5
Answer:
(A) 8y^2 +8y -10
(B) 22y^3 +2y^2 +2y -7
(C) yes, for these polynomials. The result of adding or subtracting the polynomials in this problem is another polynomial, suggesting the set of polynomials is closed to addition and subtraction.
Step-by-step explanation:
A. (4y + 2y^2 − 3) + (−4 + 2y^2 + 2y) + (4y^2 − 3 + 2y)
= y^2(2 +2 +4) +y(4 +2 +2) +(-3 -4 -3)
= 8y^2 +8y -10 . . . . total length of sides 1, 2, 3
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B. The length of the 4th side is the difference between the perimeter and the sum of the other three sides:
(22y^3 + 10y^2 + 10y − 17) -(8y^2 +8y -10)
= 22y^3 +y^2(10 -8) +y(10 -8) +(-17 +10)
= 22y^3 +2y^2 +2y -7 . . . . length of 4th side
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C. The result of adding or subtracting the polynomials in this problem is another polynomial, suggesting the set of polynomials is closed to addition and subtraction. An example is not a proof, but there is nothing about this example that would suggest a different conclusion.
Cost of tjhe donut: D
Cost of the large coffee: C
On Monday Harold picked up six donuts and two large coffees for the office staff, he paid $5.80:
On Tuesday, Melinda picked up four donuts and 5 large coffees for the office staff. She paid $7.02:
Use the next system of linear equations to find the value of D and C:
1. Solve D in the first equation:
2. Substitute the D in the second equation by the equation you get in step 1:
3. Solve C:
4. Use the value of C=0.86 to find D;
The solution fot the system is:
<h2>The cost of one dount is $0.68</h2><h2>The cost of one large coffee is $0.86</h2>
