Math help please!(only 8th grade math)?

Question

1. Hoshi walks 10 meters in 3 seconds.

a. what is her walking rate?

b.at this rate, how long does it take her to walk 100 meters?

c.suppose she walks this same rate for 50 seconds. how far does she walk?

d.Write an equation that represents the distance(d) that hoshi walks in t(variable) seconds.

2.Milo walks 40 meters in 15 seconds and mira walks 30 meters in10 seconds.Whose walking rate is faster?

Answer 1

(A) Well her walking rate will be 10 over 3, so simplify to get 3.33 meters/second. (B) Use a proportion which will be 10 over 3 = x over 100, x representing seconds. Cross multiply to get
3x = 1000. Divide by 3 to each side to get 333.3 seconds. So it will take her about 333 seconds to walk 100 meters.

It will look like this

3/10 = x/100
3x = 1000 (Cross Multiply)
x = 333.3 (Divide)

PS this website gives detailed answers for problems in selected textbooks http://hotmath.com/help/homework/middlemathseries-library.html use only if you have tried already

Answer 2

I don't know if you have studied the distance formula, so lets try this with ratios

Let's start with Hoshi walking rate r (rate in this case is distance traveled divided by the time it took)

r = distance/time =10m/3s

Question say she travels 100m at this rate

r = 10m/3s =100m/t where t is the time of travel

use ratios to find t and t will be in seconds

Now write an equation that represents the distance(d) that Hoshi walks in t(variable) second

We know the formula for rate

r = d/t Using ratios find d

d =r*t this is called the distance formula and I promise you
see it again and again
You know Hoshi's rate r, plug its value into the formula

Now you can compare Milo and Hoshi

Milo's rate = ?

Which is faster?

Answer 3

1.
a. 10 m/3 secs = 3.33 meters/second
b. 100 meters x 1 sec/3.33 meters = 33 seconds
c. 50 secs x 3.33 meters/sec = 167 meters
d. D = 3.3 x t meters

2, Milo is 40 m/ 15 sec = 2.66 m/sec
Mira is 30 m/ 10 sec = 3 m/ sec
So Mira walks faster.

Answer 4

1
a. 3.33 meters per second

b. 30 seconds

c. 166.67 meters

d. d=3.33t

2

Milo rate = 40 meters/15 seconds = 2.66 m/s
Mira rate = 30 meters/10 seconds = 3 m/s

Mira is walking faster

Answer 5

A) 3.33 meters per second B) 333 seconds
C) 166.5
D) IDK!!!!!!!
2) Mira

Answer 6

a200 meters per minute, b 30 seconds,c166.7 meters. d ? 2. mira wins

Answer 7

a.)r x t = d
d/t=r
10/3=r
3.3333333333(and so on)

b.) 30.33333333( and so on)
c.)16.6666666666(and so on) meters
d.)r x t = d (rate x time = distance)

2. Mira

Answer 8

to respond to a percentage problem, you would possibly want to first replace the p.c. right into a decimal. So, in case you're multiplying by utilizing sixty 2%, you would possibly want to replace that to .sixty 2. Then only multiply the volume by utilizing .sixty 2. for instance. sixty 2% of fifty. you would possibly want to multiply 50 circumstances .sixty 2. (be certain you multiply as known, then flow the decimal over 2 places.) you would possibly want to get 31.0 as your answer. remember that in a word problem, "of" in many circumstances refers to multiplication.

Answer 9

.33 meters/sec.
5.05 min.16.5 meters
d=.33t
miras walking rate is faster

Answer 10

your suppose to no how to do your own homework or else ask you teacher or stay for tutering