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horsena [70]
3 years ago
9

How can I do this, please sample I have to add but I don’t get the right answer, please show example

Mathematics
1 answer:
lana [24]3 years ago
3 0
If you convert the hours to minutes and subtract them you should get correct answer.
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6x-5y=5<br> 3x+5y=4<br> The x-coordinate of the solution to this system of equation is
Anna35 [415]

Answer:

x=1

Step-by-step explanation:

1) 6x-5y=5

2) 3x+5y=4

ets perform the following operation

1) +2), This leads to the following equation:

6x+3x-5y+5y=5+4

From where we obtain the solution for x

9x=9

x=1

3 0
3 years ago
Determine the slope of the line 5x + 3y + 12 = 0 .
vazorg [7]
Put ur equation in y = mx + b form because the slope will be in the m position.

5x + 3y + 12 = 0
3y = -5x - 12
y = -5/3x - 4

y = mx + b
y = -5/3x + (-4)......as u can see, the number in the m position (the slope) is -5/3 <===
6 0
3 years ago
Lúcia is using energy at a rate of 420 kilocalories (kcal) per hour (h) ice skating.
kakasveta [241]

Answer:

7000 cal/min

Step-by-step explanation:

It is mentioned that, Lucia is using energy at a rate of 420 kilo calories per hour ice skating

We know that,

1 kilo calories = 1000 calories

Using unitary method :

420 kilo calories = 420,000 calories

Also,

1 hour = 60 minutes

In this case, Lucia is using energy per 60 minutes =  420,000 calories. So,energy used by her per minute is :

E=\frac{420000}{60} =7000 calories

Hence, Lucia is using 7000 calories per minute.

Credit to handgunmaine: https://brainly.in/question/13030745

4 0
3 years ago
If there are 14 people, and each person has 2 coins, there are ____ times as many coins as people.
IgorLugansk [536]
Hi so u would multiply then add 2 to get ur answer
3 0
3 years ago
Read 3 more answers
I WILL givee brainliesttt
Dennis_Churaev [7]
It is 6 :D


explanation: t
7 0
3 years ago
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