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3 years ago

20pts answer please the picture

Mathematics

1 answer:

dimulka [17.4K]3 years ago

4 0

Answer: Hope this helps!

Step-by-step explanation:

Area of a trapezoid formula base a+base b/2*h

Base a is the top length (22.5)

Base b is the bottom length (49.9)

Add those two lengths together (22.5+49.9=72.4)

Divide that by two (72.4/2=36.2)

Then multiply that by the height (36.2*23.8=861.56)

So your area is 861.56

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Julia rides her horse 18 km with a constant speed of 6km/hr and another 24 km with a constant speed of 12 km/hr. What is her ave

nlexa [21]

Answer:

8.4 km/hr.

Step-by-step explanation:

We have been given that Julia rides her horse 18 km with a constant speed of 6 km/hr.

Let us find the time taken by Julia to cover a distance of 18 km.

$\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

$\text{Time taken to cover 18 km}=\frac{18\text{ km}}{\frac{6\text{km}}{\text{hour}}}$

$\text{Time taken to cover 18 km}=\frac{18\text{ km}}{6}\times\frac{\text{hour}}{\text{km}}$

$\text{Time taken to cover 18 km}=\frac{18}{6}\times\text{hour}$

$\text{Time taken to cover 18 km}=3\text{ hour}$

We are also told that she rides another 24 km with a constant speed of 12 km/hr.

Let us find the time taken by Julia to cover a distance of 24 km.

$\text{Time taken to cover 24 km}=\frac{24\text{ km}}{\frac{12\text{km}}{\text{hour}}}$

$\text{Time taken to cover 24 km}=\frac{24\text{ km}}{12}\times\frac{\text{hour}}{\text{km}}$

$\text{Time taken to cover 24 km}=\frac{24}{12}\times\text{hour}$

$\text{Time taken to cover 24 km}=2\text{ hour}$

Since we know that $\text{Average speed}=\frac{\text{Total distance}}{\text{Total time}}$ .

Upon substituting our values in above formula we will get,

$\text{Julia's average speed}=\frac{18\text{ km}+24\text{ km}+}{3\text{ hour}+2\text{ hour}}$

$\text{Julia's average speed}=\frac{42\text{ km}}{5\text{ hour}}$

$\text{Julia's average speed}=\frac{8.4\text{ km}}{\text{ hour}}$

Therefore, Julia's average speed is 8.4 km per hour.

5 0

4 years ago

BRAINLIST!!!! HELP!!!! PLEASE!!!!!!

poizon [28]

Answer:

For parallel I say ftL and irn and b im not sure I seriously think all of them connect in some way. hopefully this is some help.

6 0

3 years ago

Artificial turf on athletic fields was first introduced in the 1960’s. It’s safety has been controversial since then. One issue

Westkost [7]

1st question-- 61
2nd question--157

3 0

3 years ago

Read 2 more answers

Simplify (9+ 1/6 ) + (1.8 + 2 3/5

3241004551 [841]

Answer:

(9+1/6)+(1.8+2 3/5)

55/6 + (9/5 + 13/5)

55/6 + 22/5

407/30 = 13 17/30 = 13.56

5 0

3 years ago

Read 2 more answers

Help...Make sure you're correct.

LUCKY_DIMON [66]

Answer:

Linear function

Step-by-step explanation:

x y Ist difference

-6 -27 -

-5 -21 -21 - (-27) = 6

-4 -15 -15 - (-21) = 6

-3 -9 -9 - (-15) = 6

-2 -3 -3 - (-9) = 6

Since, Ist difference is common in the given table,

(Common difference = 6)

It's a linear function.

5 0

3 years ago