Ask question

Ask question

All categories

3 years ago

6

Jill orders t-shirts on Amazon. Each shirt costs $15.00 including tax. A one-time shipping fee of $3.25 is added to the cost of

the order. The total cost of Jill's order is $78.25. How many t-shirts did Jill order

1 answer:

Varvara68 [4.7K]3 years ago

5 0

Answer:

5 shirts

Step-by-step explanation:

78.25- 3.25 = 75

75/ 15 = 5

You might be interested in

F f(x) = 6x – 4, what is f(x) when x = 8?

Oduvanchick [21]

Answer:

F(x) = 44

Step-by-step explanation:

f(x) = 6x - 4

x = 8

f(x) = 6(8) - 4

f(x) = 48 - 4

4 0

3 years ago

Read 2 more answers

Perform the following calculations. In each case, first estimate the solution without using a calculator and then do the calcula

kakasveta [241]

<u>Answer:</u>

<u>For a:</u> The answer is $2.3\times 10^1$

<u>For b:</u> The answer is $8.0\times 10^{-6}$

<u>For c:</u> The answer is 127.6

<u>For d:</u> The answer is $4.66\times 10^4$

<u>Step-by-step explanation:</u>

Significant figures are defined as the figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

<u>Rules for significant figures:</u>

Digits from 1 to 9 are always significant and have infinite number of significant figures.
All non-zero numbers are always significant. For example: 654, 6.54 and 65.4 all have three significant figures.
All zero’s between integers are always significant. For example: 5005, 5.005 and 50.05 all have four significant figures.
All zero’s preceding the first integers are never significant. For example: 0.0078 has two significant figures.
All zero’s after the decimal point are always significant. For example: 4.500, 45.00 and 450.0 all have four significant figures.
All zeroes used solely for spacing the decimal point are not significant. For example : 8000 has one significant figure.

<u>Rule applied for the addition and subtraction is:</u>

The least precise number present after the decimal point determines the number of significant figures in the answer.

<u>Rule applied for the multiplication and division is:</u>

The number of significant digits is taken from the value which has least precise significant digits.

For the given options:

<u>Option a:</u> (2.7)(8.632)

The given problem is a multiplication one.

$\Rightarrow (2.7\times 8.632)=23.3$

Here, the least precise significant digits are 2. So, the answer is $2.3\times 10^1$

<u>Option b:</u> (3.600 x 10^-4) / 45

The given problem is a division one.

$\Rightarrow \frac{(3.600\times 10^{-4})}{45}=0.08\times 10^{-4}$

Here, the least precise significant digits are 2. So, the answer is $8.0\times 10^{-6}$

<u>Option c:</u> 2.365 + 125.2

The given problem is an addition one.

$\Rightarrow (2.365+125.2)=127.565$

Here, the least precise significant digits after decimal is 1. So, the answer is 127.6

<u>Option d:</u> (4.753 x 10^4) - (9 x 10^2)

The given problem is a subtraction one.

$\Rightarrow (4.753\times 10^4)-(9\times 10^2)=(4.753\times 10^4)-(0.09\times 10^4)=4.663\times 10^4$

Here, the least precise significant digits after decimal are 2. So, the answer is $4.66\times 10^4$

3 0

4 years ago

There are 279 middle school students signed up for a field trip. An adult needs to be assigned to guide every 8 students. Mr. Co

kogti [31]

Answer:

No, because 3 students would be left over and we have to make an extra so 35. Mr.Smith is wrong.

Step-by-step explanation:

3 0

3 years ago

Point j (-8 -12) is reflected over the x axis where is j

stiv31 [10]

Answer:

J(0,2)

Step-by-step explanation:

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection) to see where the new figure will be located.

4 0

3 years ago

If the points (1, -4) and (-1, r) and lie on a line whose slope is 5, what does r equal?

Alja [10]

Answer:

mabe 5

Step-by-step explanation

becuse its probly in the x1,5 becuse it slopes down 5

3 0

3 years ago