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3 years ago

A train 120cm can pass through a bridge while traveling at 80m/s in 10 s.how many seconds would a train 90m long take if i

Mathematics

1 answer:

alisha [4.7K]3 years ago

5 0

it will take 3600 seconds....

How ?

Answer--

multiply the time value by 60

hope it helps

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The table compares the prices of four types of fruit. Which fruit is the best to buy?

taurus [48]

Divide the price by the quantity:

Bananas = 5.40 / 6 = 0.90 each

Oranges = 2.56/8 = 0.32 each

Apples = 4.68 / 12 = 0.39 each

Mangos = 3.16 / 4 = 0.79 each

Oranges have the lowest price each so are the best buy.

4 0

3 years ago

Micah mixed 3 ounces of yellow paint with 5 ounces of blue paint. What is the ratio of blue paint to the total amount of paint t

kaheart [24]

5:8
3+5=
8 (all ounces added)
5(ounces of blue)

6 0

3 years ago

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Y intercept of y=5 pls heeeeeelp!!!!!

vichka [17]

Answer:

Step-by-step explanation:

The equation says y equals 5. I attached a graph below:

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3 years ago

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Write an equation of the perpendicular bisector of the line segment whose endpoints are (−1,1) and (7,−5)

icang [17]

The equation is $y = \frac{3}{2} x - \frac{11}{2}$

<u>Explanation:</u>

We have to first find the mid-point of the segment, the formula for which is

$(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )$

So, the midpoint will be $(\frac{-1+7}{2} , \frac{1-5}{2} )\\\\$

= $(3,-2)$

It is the point at which the segment will be bisected.

Since we are finding a perpendicular bisector, we must determine what slope is perpendicular to that of the existing segment. To determine the segment's slope, we use the slope formula $\frac{y_2-y_1}{x_2-x_1}$

The slope is $\frac{-5-1}{7+1}$ = $-\frac{2}{3}$

Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of $-\frac{2}{3}$ is $\frac{3}{2}$

To write an equation, substitute the values in y = mx + c

WHere,

y = -1

x = 3

m = 3/2

Solving for c:

$-1 = \frac{3}{2} X 3 + c\\\\-1 = \frac{9}{2}+c\\ \\c = \frac{-2-9}{2} \\\\c = \frac{-11}{2}$

Thus, the equation becomes:

$y = \frac{3}{2} x - \frac{11}{2}$

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3 years ago

A rectangular prism has a length of 5 centimeters, a width of 5 centimeters, and a height of 10 centimeters. The surface area of

Digiron [165]

That is true because if you use the surface area formula, 2(wl+hl+hw), you'll get 250.

4 0

3 years ago