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Alchen [17]
2 years ago
6

Rachel is mailing packages. Each small package costs her $2.60 to send. Each large package costs her$4.10. How much will it cost

her to send 3 small packages and 4 large packages?
Mathematics
1 answer:
Tresset [83]2 years ago
3 0

Answer:

$7.8

Step-by-step explanation:

$2.6 x 3

= $7.8

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When a deposit of $1000 is made into an account paying 2% interest, compounded annually, the balance, $B, in the account after t
labwork [276]

Answer:

The average rate of change in the balance over the interval t = 0 to t = 5 is of $20.82 a year. This means that the balance increased by $20.82 a year over the interval t = 0 to t = 5.

Step-by-step explanation:

Given a function y, the average rate of change S of y=f(x) in an interval (x_{s}, x_{f}) will be given by the following equation:

S = \frac{f(x_{f}) - f(x_{s})}{x_{f} - x_{s}}

In this problem, we have that:

B(t) = 1000(1.02)^{t}

Find the average rate of change in the balance over the interval t = 0 to t = 5.

B(0) = 1000(1.02)^{0} = 1000

B(5) = 1000(1.02)^{5} = 1104.08

Then

S = \frac{1104.08 - 1000}{5-0} = 20.82

The average rate of change in the balance over the interval t = 0 to t = 5 is of $20.82 a year. This means that the balance increased by $20.82 a year over the interval t = 0 to t = 5.

8 0
3 years ago
A rectangle has an area of 12 feet and a length of 5 feet .what is its width
Reil [10]
Area= l * b

12= 5 * b

b = 12/ 5

b= 2.4 ft
8 0
3 years ago
Read 2 more answers
Please answer #1 and #2
DIA [1.3K]
1)
x^2 + (3y/2z) = 7
2x^2z + 3y = 14z
3y = 14z - 2x^2z
3y = 2z(7 - x^2)
  y = 2/3(z)(7 - x^2)

2)
(3zx^4) /(5+z) = 2y
3zx^4 = 2y(5+z)
3zx^4 = 10y + 2yz

6 0
3 years ago
I have no idea how ti so this one can sombody help do this one please it is hard
Vinil7 [7]
Not as hard as you think.
Just multiply all the prime factors together.
4 0
3 years ago
Read 2 more answers
Write the inequality in slope-intercept form. 10x + 5y < 15
mestny [16]
Solve for y
minus 10x from both sides
5y<-10x+15
divide both sides by 5
y<-2x+3
7 0
3 years ago
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