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3 years ago

What is 6/7 times 7/9

Mathematics

2 answers:

Mrac [35]3 years ago

6 0

$\frac{6}{7} \times \frac{7}{9} = \frac{6}{9} = \frac{2}{3}$

2/3 is your answer.

Anna [14]3 years ago

5 0

Answer:

2/3 is the answer

Step-by-step explanation:

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A moving sidewalk at an airport glides a rate of 1.8 feet per second. Walking on the moving sidewalk, you travel 100 feet forwar

uranmaximum [27]

Answer: The walking speed is 4.2 feet per second.

Step-by-step explanation:

If your walking speed is S, then we can use the relation:

Time = distance/speed.

in the moving sidewalk the speed is S + 1.8ft/s.

moving forward:

speed = S + 1.8ft/s

Distance = 100 feet

Time = T

T = 100ft/(S + 1.8ft/s)

moving in the opposite direction (now the velocity of the moving sidewalk must be subtracted)

speed = S - 1.8ft/s

distance = 40 feet

time = T

T = 40ft/(S - 1.8ft/s)

Then we have two equations:

T = 100ft/(S + 1.8ft/s)

T = 40ft/(S - 1.8ft/s)

We can replace T in the second equation by the expression in the first one:

100ft/(S + 1.8ft/s) = 40ft/(S - 1.8ft/s)

now we can solve it for S.

100ft*(S - 1.8ft/s) = 40ft*(S + 1.8ft/s)

100ft*S - (100ft*1.8ft/s) = 40ft*S + (40ft*1.8ft/s)

100ft*S - 40ft*S = (100ft*1.8ft/s)+ (40ft*1.8ft/s)

S*(100ft - 40ft) = S*60ft = (100ft*1.8ft/s)+ (40ft*1.8ft/s)

S = ( (100ft*1.8ft/s)+ (40ft*1.8ft/s) )/60ft = (252ft^2/s)/60ft = 4.2 ft/s

The walking speed is 4.2 feet per second.

6 0

3 years ago

Simplify each expression by distributing and combined bf like terms (SHOW WORK) please

GarryVolchara [31]

Answer:

c - 39

Step-by-step explanation:

Given,

-4 (8 - c ) - (3c + 7 )

= -4 ( -c + 8 ) - (3c + 7 )

= 4c - 32 - ( 3c + 7 )

= 4c - 32 - 3c - 7

= ( 4 - 3 )c + ( -32 - 7 )

= c + ( -32 - 7)

= C - 39

hope this answer helps you dear! take care!

8 0

3 years ago

at Avery Middle School 273 students responded to a survey asking whether a bulldog a lion or a tiger to be the new school mascot

Molodets [167]

Answer:

aaazx

Step-by-step explanation:

h3xx

5 0

3 years ago

The number of members f(x) in Joe's health club increased by 25% every year over a period of x years. The function below shows t

Arisa [49]

Answer:

initial value is 15

growth factor is 1.25

Step-by-step explanation:

we are given

The number of members f(x) in Joe's health club

increased by 25% every year over a period of x years

The function below shows the relationship between f(x) and x as

$f(x)=15(1.25)^x$

now, we can compare it with exponential function

$f(x)=a(b)^x$

where

a is the initial value

b is growth factor

we can compare and find 'a' and 'b'

$a=15,b=1.25$

So,

initial value is 15

growth factor is 1.25

we know that

x is time

so, it can never be negative

f(x) is number of chambers

so, f(x) can not be negative

now, we can draw graph

and we get as

5 0

3 years ago

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Write 7.08 x 10 -4 in standard notation

MakcuM [25]

Answer:

it's 0.000708

Step-by-step explanation:

Thank you come again

4 0

3 years ago

Read 2 more answers