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3 years ago

Use the number line given to choose the best answer for the question.

Mathematics

1 answer:

Taya2010 [7]3 years ago

7 0

Answer:

can you put the number line

Step-by-step explanation:

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Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?

Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

The speed is equal to divide the distance by the time

In this problem, the slope or unit rate of the linear equation is the same that the speed

Robin's Flight

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,30) and (3,45)

substitute in the formula

$m=\frac{45-30}{3-2}$

$m=\frac{15}{1}$

$m=15\frac{m}{sec}$

Cardinal's Flight

$y=10x$

$m=10\frac{m}{sec}$

Blue Jay's Flight

take two points from the graph

(0,0) and (2,20)

substitute in the formula

$m=\frac{20-0}{2-0}$

$m=\frac{20}{2}$

$m=10\frac{m}{sec}$

Compare

The robin flies fastest because its rate is 15 m/s

4 0

3 years ago

If the factory has available 270 tires, 90 frames, and 170 pedals, which item would limit the amount of complete tricycles that

Yuri [45]

Answer:

The pedals

Step-by-step explanation:

A tricycle requires 3 tires, 1 frame, and 2 pedals.

Divide all the amounts by the amounts needed for one tricycle.

270/3=90

90/1=90

170/2=85

The pedals can only be assembled onto 85 tricycles while everything else can be assembles into 90 tricycles.

7 0

3 years ago

Read 2 more answers

Find the circumference of a circle with a diameter of 100 feet. Use 3.14 for TT (pi).

Charra [1.4K]

Using the formula for the circumference of a circle:
2 x 100 x 3.14=628ft

5 0

3 years ago

Giovanna, Frances, and their dad each carried a 10 pound bag of soil. After putting soil into the first flower bed, Giovanna's b

KIM [24]

(5/8)*10lbs = 6.25 lbs
(2/5)*10lbs = 4 lbs
(3/4)*10lbs = 7.5 lbs
then add and convert to ounces.

ignore my reply it is wrong.

5 0

2 years ago

Find the slope of the line graphed below

taurus [48]

Hello,

A=(3,-4)
B=(-2,-1)

m=(-4+1)/(3+2)=-3/5
==============

3 0

3 years ago

Read 2 more answers