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3 years ago

Whats the common multiple of 12

Mathematics

2 answers:

Anna [14]3 years ago

4 0

12,24,36,48 the least common multiple is 24

IrinaVladis [17]3 years ago

3 0

12,24,36,48 there ya go :))

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Mary baked 30 cookies. Her family ate of them. Using D write an expression for the number of cookies that remained

Dahasolnce [82]

Answer:

30 divided by 2 = D

Step-by-step explanation:

None

8 0

2 years ago

Add the following rational number7/-27 and 11/18

poizon [28]

Answer:

19/54

Step-by-step explanation:

- 7/27 + 11/18

LCM of the 27, 18 is 54

- 7/27 * (2/2) + 11/18 * (3/3)

- 14/54 + 33/54

33 - 14/54

19/54

please mark me brainlist

3 0

1 year ago

How do you solve this?

BARSIC [14]

7x+2=5(x-2)
7x+2=5x-10
7x-5x=-10-2
2x=-12
x=-6

Regards M.Y.

6 0

2 years ago

Train a is traveling at 30 mph faster than train b. If train a travels 350 miles in the same amount of time that train b travels

GalinKa [24]

Answer:

20 mph

Step-by-step explanation:

Let speed of Train a = Va mph

Let speed of Train b = Vb mph

Va = Vb + 30

Let time taken for Train a = Ta

Let time taken for Train b = Tb

time taken = distance travelled/speed

Ta = 350/Va = 350/(Vb+30)

Tb = 140/Vb

But they both travel in the same amount of time.

So, Ta = Tb

$\frac{350}{v_{b} + 30}=\frac{140}{v_{b}}$

Cross multiply

$350v_{b} = 140(v_{b} + 30)\\\\350v_{b} = 140v_{b} + 4200\\\\350v_{b} -140v_{b} = 4200\\\\210v_{b} = 4200$

Divide both sides by 210

$\frac{210v_{b} }{210} \frac{4200}{210} \\\\v_{b} = 20 mph$

4 0

2 years ago

Please help, I need it due today and urgently! Please give a small explanation and an answer

Lana71 [14]

Answer:

0=0 1=1 <u> 6<8</u>

Since 6 < 8 0.16 < 0.18

so, the hummingbird weighs more than a nickel

Step-by-step explanation:

6 is less than 8 so therefore .16 is less than .18. The nickel weighs .18 and .16 is less than that.

8 0

2 years ago