Ask question

Ask question

All categories

3 years ago

8

The US Postal rates for a first class letter are $0.46 for up to and including 1 ounce $0.66 for 1 to 2 including 2 ounces $0.86

for 2 to 3 including 3 ounces $1.06 for 3 to 3.5 including 3.5 ounces What is the cost for a letter weighing 1.03 ounces?

1 answer:

Scorpion4ik [409]3 years ago

3 0

1.03 oz is in the range 1–2 oz, so will cost $0.66.

You might be interested in

Given the position of the particle, what the position(s) of the particle when it’s at rest

choli [55]

The position function of a particle is given by:

$X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t$

The velocity function is the derivative of the position:

$\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}$

The particle will be at rest when the velocity is 0, thus we solve the equation:

$2t^2-9t-18=0$

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

$t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

Substituting:

$\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}$

We have two possible answers:

$\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}$

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

$undefined$

6 0

1 year ago

What is 6% of 1 trillion dollars written in expanded form?

Otrada [13]

Im think the answer is: 60000000000

6 0

3 years ago

What is the common difference between consecutive terms in the following

lions [1.4K]

The answer is -4 cuh

4 0

3 years ago

What is a natural number?

WITCHER [35]

MAYBE 1 AND 0 ISA NATURAL NUMBER

5 0

3 years ago

Read 2 more answers

In class, 5/9 of the students have blue Eyes. if 10 students have blue eyes, how many students are in the class in total?

KiRa [710]

Let us cross multiply.

5/9=10/x

9 x 10= 5x

90=5x

90 <u />÷ 5= 5x <span>÷ 5

18=x

So, the answer is 18. I hope this helped you, since I just learned cross multiplication last week.</span>

8 0

3 years ago

Read 2 more answers