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3 years ago

Brainly for correct step by step explanation <3

Mathematics

2 answers:

Fiesta28 [93]3 years ago

8 0

I'm really not sure how to solve this but I'll give it a shot.

30x10=300

10+10+30+30=80

there could honestly be several answers to this question.

Anna007 [38]3 years ago

6 0

Answer:

Step-by-step explanation:

I would take a wild guess and just divide 4÷300. It gives you 75. 75+75+75+75=300 or 75×4=300. P=l+w+l+w

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A pole that is 3.1m tall casts a shadow that is 1.46m long. At the same time, a nearby building casts a shadow that is 36.75m lo

Mademuasel [1]

You have to find the angle of sunlight and the pole , which then cast a shadow
length of the pole is equal to 3.1m
creating a hypotenuse of 4.52m
the angle will be
[email protected] = opposite side / hypotenuse
= 1.46/4.52
= 0.32 that's 18.66 °
now for the building sin18.66° = opposite/hypotenuse
0.32 = 36.75/ hypotenuse
hypotenuse = 114.84 m
thus using Pythagoras theorem
114.84*114.84 = 36.75*36.75 + x^2
which comes around = 108.8 roughly 109 metres long

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3 years ago

a patio is shaped like a trapezoid. it has the base of 25 feet and the height of 14 feet. Mary is going to stain the patio with

erik [133]

The minimum height of the patio is <span>#"14 ft."#</span>

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3 years ago

Read 2 more answers

40lb is what percent of 75 lb

andreev551 [17]

Answer:

i got 53.3%

Step-by-step explanation:

The formula is

is over of = what the percent is over 100

4 0

4 years ago

Please hurry. I will give brainliest. :)

katrin [286]

Answer: Am thinking it is B because am only 11 and I don't know if this is right. Hope this helps, or not...

Step-by-step explanation:

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3 years ago

A passenger train traveled 180 miles in the same amount of time it took a freight train to travel 120 miles. The rate of the fre

Mnenie [13.5K]

Answer:

The passenger train is moving at 45 miles per hour

Step-by-step explanation:

Let the amount of time it took the two trains to travel the distance = t.

Since the two trains traveled the distance at the same time,

Rate of the passenger train = $\frac{180}{t}$

Rate of the freight train = $\frac{120}{t}$

<em>Where t is in hours.</em>

From the problem, we can see that the rate of the freight train was 15 miles per hour slower than the rate of the passenger train. Mathematically, we can represent this as

$\frac{120}{t}= \frac{180}{t}-15$

from the above equation, we can now get our value for t as

$\frac{120-180}{t}=-15\\\frac{-60}{t}=-15\\t=4 hours$

We have our time of travel for the two trains as 4 hours.

The rate of the passenger train can now be calculated by 180/4 = 45 miles per hour

5 0

3 years ago