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Paladinen [302]
3 years ago
13

An airplane flies 390 miles in 3/4 hour. what is its average speed in miles per hour

Mathematics
1 answer:
pishuonlain [190]3 years ago
8 0

Answer:

1,560mi/h

Step-by-step explanation:

390 miles in 15 minutes

X miles in 60 minutes

(Cross multiplication)

(390*60)/15 = 1560

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3 years ago
There were 47 bales of hay in the barn. Mike stacked more bales in the barn today. There are now 78 of hay in the barn. How many
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Kelley ate 3/5 of her brownies on Monday and 6/8 of her brownies Tuesday. If Kelley originally had 2 brownies, what fraction bro
Sergeeva-Olga [200]
<h2>Greetings!</h2>

Answer:

\frac{13}{20}

Step-by-step explanation:

First, we need to add the two fractions together. To do this we need to make the denominator a factor of both 8 and 5. Easy way to do this is to multiply each fraction by the denominator of the other fraction:

\frac{3}{5} * 8 = \frac{24}{40}

\frac{6}{8} * 5 = \frac{30}{40}

\frac{24}{40} + \frac{30}{40} = \frac{54}{40}

We can also show 2 brownies as \frac{2}{1} or \frac{80}{40}

Now we can subtract the two:

\frac{80}{40} -  \frac{54}{40} = \frac{26}{40}

Simplify the fraction down by dividing by two:

\frac{13}{20}

Which is the fraction of brownie left!


<h2>Hope this helps!</h2>
8 0
3 years ago
A triangle has three angles of 36°, 34°, and 110°.<br> Classify the triangle.
Sliva [168]

Answer:

I'm guessing that makes obtuse triangle

why don't you try draw the triangle

Acute triangle : 0<x<90 degrees

right triangle : x=90 degrees

obtuse triangle :triangles that angles are bigger than 90 but smaller than 180 degrees

reflex angle:bigger than 180 but smaller than 360 degrees

6 0
3 years ago
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