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3 years ago

IMPORTANT NEED RIGHT NOW!! PLEASE HELP!!! WILL VOTE BRAINLIEST!!!

Mathematics

2 answers:

Mrrafil [7]3 years ago

5 0

Week 1. 50
Week 2. 100
Week 3. 200
Week 4. 400
Week 5. 800
Week 6. 1600
Week 7. 3200
Week 8. 6400

irina1246 [14]3 years ago

4 0

Week 1: 50
2: 100
3: 200
4: 400
5: 800
6: 1600
7: 3200
8: 6400

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Solve the equations for points!! <br><br> (Only 3)

jonny [76]

Answer:

-2 , -10 & -99

Step-by-step explanation:

⇒ x + 6 = 4

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⇒ x = -10

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⇒ x - 1 = -200/2

⇒ x - 1 = -100

⇒ x = 1 - 100

⇒ x = (-99)

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3 years ago

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Akimi4 [234]

>3c
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3 years ago

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myrzilka [38]

Answer:

-11xy

Step-by-step explanation:

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4 years ago

If f(x)= -3-5 and g(x)= 4x-2, find (f-g)(x)

lora16 [44]

Answer:

3^x+6x+2

Step-by-step explanation:

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3 years ago

A steamer going downstream traveled the distance between two ports in 3 hours. The return trip took 3 hours 40 minutes. Find the

lapo4ka [179]

Answer:

1.8 mph

Step-by-step explanation:

Speed of the steamer in still water is 18 mph.

Speed of the current = x mph.

1. The steamer going downstream traveled the distance between two ports in 3 hours. Traveling downstream the current "helps" the steamer, then the speed is 18 + x mph.

The distance traveled downstream = 3(18 + x) miles.

2. The steamer going upstream traveled the distance between two ports in 3 hours 40 minutes that is $3\frac{2}{3}$ hours. Traveling upstream the current "interferes" the steamer, then the speed is 18 - x mph.

The distance traveled upstream $3\dfrac{2}{3}(18-x)$ miles.

3. The distances are the same, so

$3(18+x)=3\dfrac{2}{3}(18-x)$

Solve this equation:

$3(18+x)=\dfrac{11}{3}(18-x)\\ \\9(18+x)=11(18-x)\\ \\162+9x=198-11x\\ \\9x+11x=198-162\\ \\20x=36\\ \\x=1.8\ mph$

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3 years ago