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3 years ago

Please help, will mark brainliest. It is easy and urgent.

Mathematics

1 answer:

zmey [24]3 years ago

8 0

Answer:

Step-by-step explanation:

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Can someone please help me on this question. I'm having a difficult time understanding it.

Slav-nsk [51]

The lateral surface area excludes the top and bottom, the <em>bases </em>as they're referred to here. So we have the 9×5 front and back, and the 9×6 left and right sides.

Lateral Area = 9×5 + 9×5 + 9×6 + 9×6 = 9×(5+5+6+6) = 9×22 = 198

Answer: 198 square inches

6 0

3 years ago

A dog won a race at the local fair by running 3 and one fourth miles in exactly 2 hours. At this constant rate, how long does i

Novosadov [1.4K]

Answer:

$\frac{4}{5}$ hour

Step-by-step explanation:

Let x represent time taken by dog to run the 1 and three tenths -mile state fair race.

We have been given that a dog won a race at the local fair by running 3 and one fourth miles in exactly 2 hours.

We will use proportions to solve our given problem as:

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

We will equate both speeds as:

$\frac{1\frac{3}{10}}{x}=\frac{3\frac{1}{4}}{2}$

$\frac{\frac{13}{10}}{x}=\frac{\frac{13}{4}}{2}$

$\frac{13}{10\cdot x}=\frac{13}{4\cdot 2}$

Cross multiply:

$13\cdot 10\cdot x=13\cdot 4\cdot 2$

$10\cdot x=4\cdot 2$

$\frac{10\cdot x}{10}=\frac{4\cdot 2}{10}$

Therefore, it will take $\frac{4}{5}$ hour to complete $1\frac{3}{10}$ mile state fair race.

7 0

3 years ago

-9 3/4 + 6 3/4 = what

murzikaleks [220]

-3 .....//..:’dmnrnsndndndbdbbdbsbd need characters

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3 years ago

Mario ran 10 miles in 1 hour and 15 minutes (1.25 hours). What was his average speed?

Sergio [31]

Answer:

2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls is

5 0

2 years ago

Read 3 more answers

Ganezh [65]

If two triangles are similar, it means that one is the scaled version of the other.

In similar triangles, correspondant angles are the same, and correspondant lengts are all in the same ratio $r$ . The ratio between the areas is $r^2$ .

So, for example, if the scale ratio is $r = 2$ , all sides of the new triangle are twice as long as the sides of the old one, and the area of the new one is $r^2 = 4$ times the area of the old one.

Since in this case the two areas are equal, their ratio is $r^2 = 1$ . This implied that also $r = 1$ , which means that also correspondant sides are equal.

In other words, these two triangles are not only similar, but congruent. This means that, in particular, all correspondant sides have same length, so the longest side of ABC has a length of 25 as well.

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3 years ago