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3 years ago

GIVING OUT BRAINLIEST PLEASE HELP*

Mathematics

2 answers:

Vanyuwa [196]3 years ago

8 0

Answer: 10

Step-by-step explanation:

OLga [1]3 years ago

7 0

Answer:

n is less than or equal to: 10

Step-by-step explanation:

10n+20=120

subtract 20

10n=100

divide by 10

n=10

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Alex73 [517]

Reflecting across the y axis followed by rhe x atation 180 degrees clockwise

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4 0

3 years ago

Help me with this plzzz

adell [148]

Answer:

2/3

Step-by-step explanation:

Everytime the line moves over 3 it goes up 2, so the run is 3 and rise is 2. It is written in rise over run.

4 0

3 years ago

Read 2 more answers

Every evening Jenna empties her pockets

rodikova [14]

Answer:

Step-by-step explanation:

1 dime = 10

1 quarter=25

x=number of coins - dimes

y= number of coins - quarters

x (10)+y(25)=10.25

x+y=50

x= 50-y

x(10)+y(25)=1025

(50-y)(10)+25y =1025

500-10y+25y=1025

500+15y=1025

15y= 1025 - 500

15y=525

y=525/15

y=35

x= 50-35=15

3 0

2 years ago

In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr

Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

$Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45$

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

$\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9$

Hence, the boat's speed in still water is 9 mph

7 0

4 years ago

Is this right, can someone please explain so?

Orlov [11]

You have to turn them in to the lowest common denominator

6 0

3 years ago

**GIVING OUT BRAINLIEST PLEASE HELP***

GIVING OUT BRAINLIEST PLEASE HELP*