MATHEMATICS MIDDLE SCHOOL

A train travels with a constant speed of 86 kilometers per hour. How far can it travel in 4 hours

Answers

Answer 1

Answer:

Answer:

your answer will be 344 kilometers in 4 hours

Answer 2

Answer:

Answer:

345

Step-by-step explanation:

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How many groups of 8 in 56, 64, 8, 24? Also, which multiple of 8 is closest to 66, 53, 33, 1, 18, 45, 27, 82? Plz answer between 2 hours and you may answer one question if you want.

Answers

first one : 7, 8, 1, 3 second is : 8, 7, 4, 0, 2, 6, 3, 10 these are the answers if i get the questions correctly.

Two lines have the same non-zero y-intercept. The first line has a slope of 10 and an x-intercept of (s, 0). The second line has a slope of 6 and an x-intercept of (t, 0). What is the ratio of s to t? Express your answer as a common fraction.

Answers

A line is a one-dimensional shape that is straight. The ratio of s to t is 3/5.

What is the equation of a line?

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The equation of line is given by,

y =mx + c

where,

x is the coordinate of the x-axis,

y is the coordinate of the y-axis,

m is the slope of the line, and

c is the y-intercept.

Given the first line has a slope of 10 and an x-intercept of (s, 0). Therefore, if the coordinate of the x-intercept and slope is substituted in the equation of line. Then, the equation can be written as,

y = mx + c

0 = 10s + c

c = -10s

Also, given the second line has a slope of 6 and an x-intercept of (t, 0). Therefore, if the coordinate of the x-intercept and slope is substituted in the equation of line. Then, the equation can be written as,

y = mx + c

0 = 6t + c

c = -6t

Further, since the y-intercept of the line is equal for both the line, therefore, we can write,

c = c

-10s = -6t

s/t = -6/-10

s/t = 3/5

Hence, the ratio of s to t is 3/5.

Learn more about Equation of Line here:

brainly.com/question/21511618

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Answer:

Step-by-step explanation:

What is the first step needed to solve 2 over 5 multiplied by x minus 6 equals negative 16?A.) Subtract 16 from both sides
B.)Add 6 to both sides
C.) Divide both sides by 5
D.) Multiply both sides by 2

Answers

9514 1404 393

Answer:

B.) Add 6 to both sides

Step-by-step explanation:

Actually, the first step is to look at the given equation and at what is being asked. The next step is to formulate a strategy for finding what is asked.

Here, the equation is ...

$(2)/(5)x-6=-16$

As part of our assessment of this, we notice that ...

x is multiplied by 2/5
6 is subtracted

We are asked for the first step to solve this equation. The usual strategy for solving such an equation is to undo the steps done to the variable, in reverse order. In the above assessment, we notice the last step is subtracting 6 from the product. So, our first step in finding the value of x is to undo that subtraction:

add 6 to both sides

Additional comment

We also notice as part of our assessment that the equation contains the fraction 2/5, which has a denominator of 5. If we choose to eliminate fractions as a first step in our solution strategy, we would multiply both sides by 5. Notice that this is not one of the offered choices.

Answer:

A) Add One-sixth to both sides.

Step-by-step explanation:

If you know the rate of a water leak in gallons per hour, how can you find the number of hours it takes for 1 gallon to leak out?

Answers

You will need to take the rate it's leaking out at, and figure out how many times that unit goes into one full gallon. Then you will need to multiply your answer by the time given in the rate.

Example: If the rate is .5 gallon per 1 hour, then we already know that it will take 2 hours...but to calculate it, we will take the .5 gallon and see how many times it goes into a full gallon, Its 2. Now multiply by 1 (since the rate was .5 gallon per 1 hour). So the answer is in fact 2.

Example 2: If the rate was .5 gallon every 2 hours, we will use the same method. If we think about it, we probably already know it will be 4 hours...but lets calculate!

.5 gallon goes into 1 full gallon twice. And 2 x 2 = 4

Last week, Bill ran 900 meters on each of 3 days. Between last week and this week, bill wants to run a total of 6 kilometers. How far does bill need to run this week?A. 4.7 kilometers
B. 2.7 kilometers
C. 3.3 kilometers
D. 2.3 kilometers

Answers

For the 3 days he ran a total of : 3 * 900 = 2700 meters.

1000 meters = 1 kilometers

2700 meters = 2700 / 1000 = 2.7 kilometers.

Between last week and this week, Bill ran a total of 6 kilometers.

How far he ran this week = 6 - 2.7 = 3.3 kilometers.

Option C.

The figure is made up of a cylinder and a sphere which has been cut in half. The radius of each half sphere is 5 mm. What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth. A cylinder and 2 half spheres. All have a radius of 5 millimeters. The cylinder has a height of 10 millimeters. Recall the formulas V = B h and V = four-thirds pi r cubed 376.80 cubic millimeters 847.80 cubic millimeters 1,177.50 cubic millimeters 1,308.33 cubic millimeters