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3 years ago

Please help me! I need this done in 10 mins.

Mathematics

2 answers:

antiseptic1488 [7]3 years ago

8 0

Answer:

The answer is 28.5

Step-by-step explanation:

Break apart the shapes then add their areas

Rectangle: 3 * 6 = 18

Top triangle: 6 * 2 = 12 / 2 = 6

Triangle on the right: 3 * 3 = 9 / 2 = 4.5

Total area = 28.5 meters squared.

swat323 years ago

7 0

Answer:

I'm pretty sure the answer is 14m

Step-by-step explanation:

All you have to do is add the numbers together.

Hope this helps!

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A train is moving at a rate of 65 miles/hour toward a railroad marker located 200 miles away. Which equation could be used to fi

yulyashka [42]

Answer:

h = 196/65

Step-by-step explanation:

65 miles /1 hour is the moving rate

200 miles is the distance to the railroad maker

h = ?

200- 4 miles = 196 miles were left behind the train

65miles /1 hour , 130miles/2hours , ..196miles/ ?hours

h = 196/65 = 3 hours and 1/65 minutes from an hour = 3 hours and 12/13 min.

60/ 65 = 12/13

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2 years ago

In one day, Joe consumes 530 calories by drinking 1 serving of juice, 2 s

SCORPION-xisa [38]

Answer:

B. 110

Step-by-step explanation:

In one day, Joe consumes 530 calories by drinking 1 serving of juice, 2 servings of milk, and 1 soda. Darius consumes 370 calories by drinking 2 servings of juice and 1 serving of milk. Marian consumes 510 calories by drinking 3 servings of milk and 1 soda. Using matrices to solve, how many calories are in 1 serving of milk?

A. 90

B. 110

C. 130

D. 180

Answer:

Let x represent the amount of calories in 1 servings of juice, y represent the amount of calories in 1 servings of milk and z represent the amount of calories in 1 servings of Soda.

Joe consumption can be represented by:

x + 2y + z = 530 (1)

Darius consumption can be represented by:

2x + y = 370 (2)

Marian consumption can be represented by:

3y + z = 510 (3)

The equations can be represented in matrix form as:

$\left[\begin{array}{ccc}1&2&1\\2&1&0\\0&3&1\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}530\\370\\510\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&2&1\\2&1&0\\0&3&1\end{array}\right] ^{-1}\left[\begin{array}{c}530\\370\\510\end{array}\right] \\\\\\$

$\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}0.33&0.33&-0.33\\-0.67&0.33&0.67\\2&-1&-1\end{array}\right]\left[\begin{array}{c}530\\370\\510\end{array}\right]\\\\\\\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}130\\110\\180\end{array}\right]$

The amount of calories in one serving of milk is 110 calories

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3 years ago

Helen has 2 winter coats, 4 hats and 3 scarves. How many different outfit combinations does Helen have to chose from?

Nataly_w [17]

Answer:idk

Step-by-step explanation:

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3 years ago

A parent died and left an estate to four children. One inherited

svetoff [14.1K]

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2 years ago

The figure shows two parallel lines PQ and ST cut by the transversals PT and QS.

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answer is

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3 years ago

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