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astra-53 [7]
3 years ago
7

Help&EXPLAIN =============

Mathematics
1 answer:
Serhud [2]3 years ago
3 0

Answer:

circumference=7.85

πd=7.85

d=7.85/π=2.49=2.5ft.

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A toll bridge charges $1.00 for passenger cars and $2.25 for other vehicles. Suppose that during daytime hours, 60% of all vehic
Rama09 [41]

Answer:

Total revenue by the toll bridge = $45

Step-by-step explanation:

Total vehicles crosses the bridge = 30

Number of passenger cars = 60 % of all vehicles = \frac{60}{100}\times {30} = 18

Other vehicles = 30 - 18 = 12

Charges for one passenger cars = $1.00

Thus total Revenue by the  passenger cars = 18 × 1 = $18

Charges for other vehicles = $2.25

Total revenue by other vehicles = 2.25 × 12 = $27

Thus the total revenue from the toll bridge = 18 + 27 = $45

3 0
4 years ago
Two cars start at the same time, but travel in opposite directions. One car's average speed is 30 miles per hour (mph). At the e
astraxan [27]
30 (miles) times 4 (hours) equals to 120 miles. 400 miles minus 120 miles equals 280 miles (distance the other car has driven). 280 divided by 4 (because we want to find the speed for only one hour) equals 70 miles.
The average speed of the other car is 70 mph
3 0
4 years ago
What is the answer to # 4???
ivann1987 [24]
5 and 3/4 is the first one
4 ft 3 in the second one

8 0
4 years ago
Solve the system equation for X and using the elimination method .
Kisachek [45]

Answer: <em><u>2х+5y=25=  Slope = -0.800/2.000 = -0.400 </u></em>

<em><u>  x-intercept = 25/2 = 12.50000 </u></em>

<em><u>  y-intercept = 25/5 = 5</u></em>

<em><u>so slope form =0,400</u></em>

<em><u>x intercept form = 12.50000</u></em>

<em><u>y intercept =5</u></em>

<em><u>and the answer to 2x+3y=-1=  Slope = 1.333/2.000 = 0.667 </u></em>

<em><u>  x-intercept = 1/2 = 0.50000 </u></em>

<em><u>  y-intercept = -1/3 = -0.33333</u></em>

Step-by-step explanation:  an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  2x+5y-25  = 0 and calculate its properties

Notice that when x = 0 the value of y is 5/1 so this line "cuts" the y axis at y= 5.00000

 y-intercept = 25/5  =  5

When y = 0 the value of x is 25/2 Our line therefore "cuts" the x axis at x=12.50000

 x-intercept = 25/2  = 12.50000

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 5.000 and for x=2.000, the value of y is 4.200. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.200 - 5.000 = -0.800 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     = -0.800/2.000 = -0.400  

Geometric figure: Straight Line

 Slope = -0.800/2.000 = -0.400

 x-intercept = 25/2 = 12.50000

 y-intercept = 25/5 = 5

8 0
3 years ago
A ladder is 80 inches tall. How tall is it in feet and inches?
Veseljchak [2.6K]

Answer:

6'8

Step-by-step explanation:

6 0
3 years ago
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