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Lapatulllka [165]
2 years ago
10

PLEASE HELP SKJSDLFSKDJF

Mathematics
1 answer:
charle [14.2K]2 years ago
6 0

45 min is 3/4 of an hour, 3/4 0f 40 km/h=30 km

75km/h x 2hr=150km

=180km

Total time:3hr

180kh/3hr=60km/h

sorry if im wrong

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Can you help me with something
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3 years ago
Help me with math please, quickly
irga5000 [103]

Answer:

3\neq -3

False

Step-by-step explanation:

y=3x-9\\\\x-\frac{1}{3}y=-3

You substitute y for the second equation.

x-\frac{1}{3} y=-3\\\\x-\frac{1}{3}(3x-9)=-3

Then you have to distribute -\frac{1}{3} .

x-x+3=-3

Combine like terms.

3\neq -3

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2 years ago
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The height of Liliana’s picture frame is 18 inches. The frame and blue matting take up 4.5 inches of the height. Liliana wants t
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.Answer: C

Step-by-step explanation:

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8 0
3 years ago
If $580 is invested in an account which earns 9% interest compounded annually, what will be the balance of the account at the en
joja [24]
The formula for compounded interest is A = P (1+r/n)^nt.
P=580 
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n = 1
t = 9
<span>
To find how much the balance is at the end of nine years, plug in all of the knows into the formula.</span>
A = 1259.698 is how much the balance will be. (Rounded to 1259.70 if you round to the nearest cent).



8 0
3 years ago
PPPPPPPLLLLLEEEEAAASSEEE HHHEEELLLPPPPP!!!!!
VARVARA [1.3K]

Answer:

the answer is a

Step-by-step explanation:

2x +2(x-4)=87

2x+2x-8=87

4x-8=87

4x=95

x=95/4

8 0
3 years ago
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