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crimeas [40]
3 years ago
14

How many solutions does -5x+10x+3=5x+6 have

Mathematics
1 answer:
nasty-shy [4]3 years ago
5 0
It actually has no solutions.

x = No solutions

Hope this helps.<span />
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Factor the expression using the common factor −4 . −12x+2.4y−48
diamong [38]

Answer:

-4( 3x - 0.6y + 12)

Step-by-step explanation:

k12

hope i helped

7 0
3 years ago
Read 2 more answers
a train travels 288km at a uniform speed.if the speed has been 4km per hour more it would have taken one hour less for the same
Lostsunrise [7]

Given:

A train travels 288 km at a uniform speed.

If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

To find:

The initial speed of the train.

Solution:

Let x km/h be the initial speed on the train.

New speed of train = (x+4) km/h

We know that,

Time=\dfrac{Distance}{Speed}

Time taken by the train initially to cover 288 km is \dfrac{288}{x} hours.

New time taken by the train to cover 288 km is \dfrac{288}{x+4} hours.

It is given that If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

\dfrac{288}{x}-\dfrac{288}{x+4}=1

\dfrac{288(x+4)-288x}{x(x+4)}=1

288x+1152-288x=x^2+4x

1152=x^2+4x

0=x^2+4x-1152

Splitting the middle term, we get

x^2+36x-32x-1152=0

x(x+36)-32(x+36)=0

(x+36)(x-32)=0

x=-36,32

We know that the speed cannot be negative. So, the only possible value of x is 32.

Therefore, the speed of the train is 32 km/h.

3 0
2 years ago
Jeffrey biked to a bookstore at 12 mi./hr. but he took his time on his way home, going 8mi./hr. If it took him 20 min. to get to
Nookie1986 [14]
It took him 8 minutes.
4 0
3 years ago
From least to greatest
Katyanochek1 [597]

Answer:

Step-by-step explanation:

.3, 1/3, 2/5, 1/2, .6

6 0
3 years ago
Read 2 more answers
Simplify the expression 5+4•(8-6)^2<br> Please show steps.
-Dominant- [34]
P- parenthesis

( 8 - 6 ) = 2

E- exponents

2^2 = 2 × 2 = 4

M- multiplication / division

4 × 4 = 16

D- division

N/A

A- addition / subtraction

5 + 16 = 21

S- subtraction

N/A

~~

Answer : 21




6 0
3 years ago
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