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goldfiish [28.3K]
3 years ago
6

A train goes at a constant speed. If it covers 150 miles in 2 1 2 hours,

Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Answer:

x = 1 2/3 hours

Step-by-step explanation:

We can use ratios to solve

150 miles          100 miles

---------------- = ---------------

2.5 hours          x hours

Using cross products

150x = 2.5*100

divide each side by 150

150x/150 = 250/150

x = 1 2/3 hours

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What is the unit rate for 3 inches of rain in 6 hours?
maxonik [38]

Answer:

18

Step-by-step explanation:

3x6=18

Hope this helps!

4 0
3 years ago
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Find the value of x in the triangle shown below.<br> x =<br> 98°<br> 27°
Levart [38]

Answer: 55

Step-by-step explanation: There is one simple theorem we need to know in order to solve for this.

Triangle Angle-Sum Property: All three angles interior angles of a triangle add up to 180°.

Thus, we could label the points A, B, and C, and set up an algebraic expression.

Let A = 27, B = 98, and C = x.

A + B + C = 180°.

Substituting A, B, and C we get:

27 + 98 + x = 180°.

Adding, we get:

125 + x = 180°

Subtracting 125 by 180, we get:

x = 55°

Thus, the angle X is 55°.

We could have simply solved this by just doing 180 - 98 - 27 = 55 in the first place, but I wanted to show you how I got such results.

5 0
2 years ago
Finding percents<br> 6% of 300
adell [148]
6% means 6/100 or 0.06

"of" means "times"

0.06 x 300 = 18
7 0
3 years ago
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Find the inverse, please help.
igomit [66]
Replace f(x) with y

Y = 2x -5

Swap roles of x

X= 2y-5

5+x =2y

Divide by 2

5+x /2 = y

Replace y with inverse f^-1(x)

Answer= f^-1(x) = 5+x / 2


6 0
3 years ago
a sporting goods store receives a shipment of 124 golf bags. The shipment includes two types of bags, full-sized and collapsible
Dominik [7]
The sporting goods store receives the shipment of 124 golf bags in total.
Let us assume that the number of full-sized bags = X
Then the number of collapsible golf bags = 124 - X
Cost of each full sized bags = $38.50
Cost of each collapsible bags = $22.50
Total cost of the 124 bags received by the sporting goods store = $3430
Then
(38.50)X + (124 - X)22.50 = 3430
(38.50X - 22.50X) + 2790 = 3430
16X = 3430 - 2790
16X = 640
X = 640/16
   = 40
So the number of full-sized golf bags received = 40
Then the number of collapsible golf bags received = 124 - 40
                                                                                 = 84
7 0
3 years ago
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