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3 years ago

Three shirts cost $9.99. How much does it cost for 8 shirts?

Mathematics

2 answers:

Nata [24]3 years ago

6 0

Answer:

$26.64

Step-by-step explanation:

9.99 ÷ 3 = 3.33

3.33 × 8 = 26.64

Olegator [25]3 years ago

5 0

Answer:

Step-by-step explanation:

Mines came up as 79.78 but ion think that’s right

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A high speed train travels a distance of 503 km in 3 hours.

Marta_Voda [28]

Step-by-step explanation:

it's is 2.8 km if we round to one decimal place

4 0

3 years ago

Which of the following is a solution of x2 + 6x = −18? x = 3 − 3i x = −3 + 3i x = −6 + 3i x = 6 − 3i

Marina86 [1]

Step 1 ) Move all terms right side of the equation.

$\displaystyle\ x^{2} + 6x = -18$

$\displaystyle\ x^{2} + 6x + 18 = -18 + 18$

$\displaystyle\ x^{2} +6x + 18 = 0$

Step 2 ) Apply quadratic formula. (Note: There are 2 solutions)

$\displaystyle\ x^{2} +6x + 18 = 0$

$\displaystyle\ x = \frac{-b\sqrt{b^{2}-4ac}}{2a}, \displaystyle\ x = \frac{-b-\sqrt{b^{2}-4ac}}{2a}$

$\displaystyle\ x = \frac{-6+\sqrt{6^{2}-4 * 18}}{2} , \displaystyle\ x = \frac{-6-\sqrt{6^{2}-4*18}}{2}$

$\displaystyle\ x = \frac{-6+6i}{2}$ ,

$\displaystyle\ x = \frac{-6-6i}{2}$

Step 3 ) Simplify.

$\displaystyle\ x = \frac{-6+6i}{2}$ ,

$\displaystyle\ x = \frac{-6-6i}{2}$

$\displaystyle\ x = -3+ 3i$ ,

$\displaystyle\ x = -3 - 3i$

Since the options only provide one of the answer we found, the answer is...

$\displaystyle\ x = -3 - 3i$

•

- <em>Marlon Nunez</em>

6 0

3 years ago

Read 2 more answers

In considering career options, Ella would like to enter an industry with at least 50% growth from 2000 to 2010. Based on the abo

AlladinOne [14]

Answer:

Industries below 50% growth are

Personnel supply services, Warehousing and storage, Water and sanitation, Management and public relations, Business services, Equipment rental and leasing.

Step-by-step explanation:

In the graph percentage change is on the x axis and on the y axis all industries have been mentioned.

All the industries on y axis have the span over x axis representing the growth and salaries.

Out of 10 top industries only four industries have the growth of 50% which is evident from the graph.Those industries are Health Services,Computer and data processing, Cable television services and Residential care. Rest six industries are below 60% growth.So Ella should consider these industries to join.

8 0

3 years ago

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A bag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles. Gordon selects a marble without looking.

prisoha [69]

1st you add up all the marbles so we got 15 so the answe will be out of 15 then next we add up nhe number of yellow and purple marbles 5+3= 8 so the answe will be 8/15

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3 years ago

What is the total number of common tangents that can be drawn to the circles?

erastovalidia [21]

Answer:

B. 0

Step-by-step explanation:

The circles do not intersect, tangents require intersection

6 0

3 years ago