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Airida [17]
4 years ago
8

Idk how to do this, someone please help

Mathematics
1 answer:
Mariana [72]4 years ago
3 0
Take the formula: y=mx+b
m= slope
b=y-intercept

m=2
b=-1
therefore: 
y=2x-1
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A train is moving at an average speed of 180 m/s. how long will it take to reach the station. Both stations are 80 km apart?
Alexxandr [17]

1 km = 1000 meters.

Find total meters: 80 km x 1000 meters per km = 80,000 meters.

Divide total meters by the given speed:

80,000 meters / 180 m/s = 444.44 seconds.

1 minute = 60 seconds

444.44. Seconds / 60 seconds per minute = 7.41 minutes = 7 minutes 24.42 seconds

Total time = 7 minutes 24.42 seconds

Round as needed.

4 0
3 years ago
Use the place values of 35 to fill in the blanks in parentheses.Then, give the value of 2 x 35.(a) 2 x 35 = (2 x D)- (DХа 6?(b)
jonny [76]

In 35, 3 is in the tens place and 5 is in the ones place, that is,

place value of 3: 30

place value of 5: 5

This means that 35 can be expressed as 30 + 5.

Substituting 35 = 30 + 5 into the multiplication given, we get:

\begin{gathered} 2\cdot35=2\cdot(30+5) \\ \text{Distributing the multiplication over the addition:} \\ 2\cdot35=(2\cdot30)+(2\cdot5) \\ \text{ Solving each multiplication on the right} \\ 2\cdot35=60+10 \\ 2\cdot35=70 \end{gathered}

8 0
1 year ago
(-5,7) and (2,5) <br> find the slope of the line passing through the given points
svp [43]

Answer: -2/7

Step-by-step explanation:

To find the slope, you use the formula m=\frac{y_2-y_1}{x_2-x_1}.

m=\frac{5-7}{2-(-5)} =\frac{-2}{7}=-\frac{2}{7}

Now, we know the slope is -2/7.

6 0
3 years ago
Determine the volume of the 3-D solid below. The base has a height of 6 m and a length of 5 m. The solid itself has a height of
Allushta [10]

Answer:

210

Step-by-step explanation:

7x6x5

= 210

7 0
3 years ago
What is 0.429 as a fraction
Dmitrij [34]
As a fraction it would be 429/1000
3 0
3 years ago
Read 2 more answers
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