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ValentinkaMS [17]
2 years ago
7

A train leaves Little​ Rock, Arkansas, and travels north at 60 kilometers per hour. Another train leaves at the same time and tr

avels south at kilometers per hour. How long will it take before they are 230 kilometers​ apart?
30 POINTS WILL BE AWARDED
Mathematics
1 answer:
Morgarella [4.7K]2 years ago
5 0

Answer:

Step-by-step explanation:

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Pls help
BlackZzzverrR [31]

Answer:

y =  8 \:  \:  \: x =  - 10

Step-by-step explanation:

4( - 6x - 9y =  - 12) \\ 3(8x + 9y =  - 8) \\  \:  \:  \:  \:  \:  \:  \\  - 24x - 36y =  - 48 \\ 24x + 27y =  - 24 \\  \\  - 9y =  - 72 \\ y = 8 \\  \\  \\  \\  \\  - 6x  -  9y=  - 12 \\  - 6x  -  72 = -  12 \\  - 6x =  - 12 + 72 \\  - 6x = 60 \\ x =  - 10

8 0
2 years ago
Andy played with Buzz 65% of the time. How many times did andy play with Buzz if her played with his toys 20 times?
emmasim [6.3K]

Answer:

13

Step-by-step explanation:

yes.

5 0
3 years ago
Read 2 more answers
A card is selected at random from a standard deck. find each probability. randomly selecting a club or a 3
4vir4ik [10]
A deck has 52 cards
There were are 13 clubs
There are 4 cards with "3" but one of them is a club, so there are 3.
P (club or 3) = (13 + 3) / 52 = 4/13
5 0
3 years ago
A spherical tank has a radius of 6 yards. It is filled with a liquid the cost $7.15 per cubic yard.
mote1985 [20]
We have two questions, but we need to find the volume of the spherical tank first.
So the formula we will use to find the volume is:
(4/3)πr³=V
Let's fill in the information we have and solve. We will be using 3.14 for pi.
(4/3)(3.14)6³
(4/3)(3.14)(216)
4.1867×216
I'll be using the repeating decimal for 4.1867, I rounded to 7, but there is a repeating 6.
904.32
So the volume is 904.32 yards³ (or 904.78 if using the full pi)
We have to multiply the volume by 7.15.
904.32×7.15
6,465.89
It will cost $6,465.89 to fill the tank with the liquid.
3 0
3 years ago
Read 2 more answers
PLEASE ANSWER FAST!!!
Ilya [14]
S= 11/12
15%-p=x
35-$18=n
5 0
3 years ago
Read 2 more answers
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