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barxatty [35]
4 years ago
15

Need help pelase : multiply. 3/8 x 2/7

Mathematics
2 answers:
Crank4 years ago
8 0
If you would like to calculate 3/8 * 2/7, you can do this using the following steps:

3/8 * 2/7 = (3 * 2) / (8 * 7) = 6/56 = 3/28

The correct result would be 3/28.
Rudiy274 years ago
4 0
To multiply fractions, we multiply the numerator by the numerator and the denominator by the denominator.

3/8*2/7= 

3*2/8*7= 6/56

Now we simplify

We need to divide the numerator and the denominator by the same number to get a more simple form of that fraction.

6/2=3
56/2= 28

Answer: 3/28

Our final answer is: \frac{3}{28}


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Find the sum of the first fifteen terms of an arithmetic sequence if the middle term is 92.
Ivan
I'll try to explain this as much as possible but 92 is x but you don't know y 
so it would be dermined this way I hope this makes sense 
15-8=7 So, this would mean that the term is 7th in place. 
92-7y+92+7y=92+92=184 

8 0
3 years ago
A car starts from rest and acquires a velocity of 72 km/h in 5s. Find the distance travelled by car assume motion of car is unif
Damm [24]

Answer:

Converting velocity into m/s

72x5/18=20 m/s²

Distance = Velocity *Time

20*5=100m

Step-by-step explanation:

hope it's helpful

3 0
3 years ago
3p . (2+k) = 6p + 3pk
pashok25 [27]
3p* (2+k) = 6p + 3pk

Subtract 6 p + 3 pk from the both sides:

3p(2+k) -(6p+3pk) = 6p+3pk-(6p+3pk)

= 3pk(2+k) - 6p-3pk = 0

Factor 3p(2+k) - 6p - 3k

Factor out common term 3p

= 3p(k-k+2-2)

refine:

0 = 0

true for all p

hope this helps!
3 0
3 years ago
A bag contains 5 black marbles, 9 white marbles, and 2 red marbles. One marble is to be chosen at random.
bulgar [2K]
2/16 because when you add all the marbles, you get 16 in total and there are 2 red marbles so there is a 2/16 chance of choosing one of the red marbles. If you want it simplified, it would be 1/8.
3 0
3 years ago
A family has two cars. During one particular week, the first car consumed 15 gallons of gas. The two cars Drove a combined total
julia-pushkina [17]

Answer:

Car 1 : 40 miles per gallon

Car 2: 25 miles per gallon

Step-by-step explanation:

family has two cars. During one particular week, the first car consumed 15 gallons of gas. The second car consumed 25 gallons of gas. The two cars Drove a combined total of 1475 miles and the sum of their fuel efficiency was 65 miles per gallon. What were the fuel efficiency of each of the cars that week

Given that :

Fuel efficiency , car 1 = x

Fuel efficiency , car 2 = y

x + y = 65 - - (1)

15x + 35y = 1475 - - - (2)

x = 65 - y

15(65-y) + 35y

975 - 15y + 35y = 1475

20y = 14875 - 975

20y = 500

y = 25

Put y = 25 in (1)

x + y = 65

x + 25 = 65

x = 65 - 25

x = 40

6 0
3 years ago
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