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Jobisdone [24]
3 years ago
13

HELP ASAP PLEASE!!!!!

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0

Step-by-step explanation:

LCM of 18, 30 and 42

= 2×3×3×5×7

=630 option B

After 630secs the planets will be aligned again

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4 + 3x = 3х + 5<br> 4 = 5
Inessa [10]

Answer:

4≠5

There is no solution

Step-by-step explanation:

7 0
3 years ago
The lenght of a rectangle is 4 meters more than twice the width. Find the greatest possible value for the width if the perimeter
djyliett [7]
2(L + W) < = P
L = 2W + 4
P 38

2(2W+4 + W)  = 38
4W + 8 + 2W = 38
6W + 8 = 38
6W = 38 - 8
6W = 30
W = 30/6 = 5....the greatest possible value is 5



6 0
4 years ago
Simplify -12x + 5x. answer
Gala2k [10]

-12x + 5x

-7x

Hope this helps! ;)

3 0
3 years ago
Read 2 more answers
The ratio of cats to dogs at the animal shelter is 4 to 5. If there are 45 dogs at the shelter, how many total cats and dogs are
Nat2105 [25]
<h3>Answer:  81</h3>

Work Shown:

x = number of cats

(4 cats)/(5 dogs) = (x cats)/(45 dogs)

4/5 = x/45

4*45 = 5x

180 = 5x

5x = 180

x = 180/5

x = 36

There are 36 cats and x+45 = 36+45 = 81 cats and dogs total.

3 0
3 years ago
Consider the system of equations
Free_Kalibri [48]

Answer:

(-3,-8)

Step-by-step explanation:

okay so what we can do here is elimination

we can do this first by multiplying the entire second equation by 2

so then it would become

2(5x-2y=1)

10x-4y=2

now we can add the two equations together which will eliminate y

so

-8x+4y=-8 plus

10x-4y=2 equals

2x=-6

we did that by combining like terms

next we can simplify that

x=-3

now we can plug that into the equation

-8(-3)+4y=-8

simplify

24+4y=-8

4y=-32

y=-8

our answer would be

(-3,-8)

7 0
3 years ago
Read 2 more answers
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