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Andrei [34K]
3 years ago
9

PLEASE ASSIST ME WITH THIS

Mathematics
2 answers:
kobusy [5.1K]3 years ago
7 0
The electric car is not moving at 0 seconds and 12 seconds
GuDViN [60]3 years ago
3 0
The electric car is not moving at 0 seconds and 12 seconds. Since y represents the speed in mph, if the car is moving at 0 mph, then it is not moving at all. 0 and 12 seconds show the car is moving at 0 mph.
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At a historical landmark, candles are used to simulate an authentic atmosphere. A volunteer is currently putting new candles in
myrzilka [38]

Answer:

Each small candleholder holds 3 candles, and each large one holds 5 candles.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of candles that a small candleholder holds.

y is the number of candles that a large candleholder holds.

24 small candle holders and 3 large candle holders, using a total of 87 candles.

This means that

24x + 3y = 87

Simplifying by 3

8x + y = 29

y = 29 - 8x

14 small candle holders and 7 large candle holders, for a total of 77 candles.

This means that 14x + 7y = 77

Simplifying by 7

2x + y = 11

y = 11 - 2x

Since y = 29 - 8x

11 - 2x = 29 - 8x

6x = 18

x = \frac{18}{6}

x = 3

y = 29 - 8x = 29 - 8*3 = 29 - 24 = 5

Each small candleholder holds 3 candles, and each large one holds 5 candles.

5 0
3 years ago
How long would it take to drive 300 miles with a constant speed of 176.1
Oxana [17]

Answer:

It would take about 1.7 hours

Step-by-step explanation:

divide 300 by 176.1

7 0
3 years ago
Iff a/b is a rational number, what does b have to equal in order for a/b to also be an integer
postnew [5]

You're thinking b=1 will always give an integer, certainly true.

Then you think b=-1 will also always give an integer, so

Answer: ±1

Then you remember that a/b may not be a reduced fraction, so other bs beside the unit make give integers.   The condition for an integer is

b | a

read 'b divides a'  meaning a is a multiple of b.

Then you realize that a and b might not even b integers themselves.

Let's say the above answer is correct with the additional criteria that a and b are integers with no common factors.

4 0
3 years ago
Read 2 more answers
What is the answer to x - 10 + -6 + 4
mariarad [96]

Answer: x-12

Step-by-step explanation:

Simplify.

x

−

1

0

−

6

+

4

x−10−6+4

2 Collect like terms.

x

+

(

−

1

0

−

6

+

4

)

x+(−10−6+4)

3 Simplify.

x

−

1

2

x−12

8 0
3 years ago
If you need 60 water bottles for 30 runners how many water bottles would you need for 20 runners
Ede4ka [16]
Start by, 60/30= then 2*20= 40 so 40 bottles for 20 runners. 
8 0
3 years ago
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