2 years ago

A pool can be filled by one pipe in 8 hours and by a second pipe in 3 hours. How long

Mathematics

1 answer:

Natalka [10]2 years ago

7 0

Answer:

x=2.4 hours or 2 hours and 24 minutes together

Step-by-step explanation:

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The scale on a map is 1 cm : 6 km. If two cities are 13 cm apart on the map, what is the actual distance between the cities?

AnnZ [28]

Answer:

78 km!

Step-by-step explanation:

13 cm * 6 km per cm = 78 km in actual distance

4 0

1 year ago

(-3/4m)-(1/2)=2+(1/4,)

Aleks [24]

(-3/4m) -(1/2)=2+(1/4m)
-(1/2)=2+m
m= -3/2

5 0

2 years ago

Helena wrote the equation using point-slope form for the line that passes through the points (5, 1) and (3, 5). Analyze the step

viva [34]

Answer:

In step 2, she didn’t use an x and y from the same coordinate pair

Step-by-step explanation:

see the attached figure to better understand the problem

we have the points (5, 1) and (3, 5)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute

$m=\frac{5-1}{3-5}$

$m=\frac{4}{-2}$

$m=-2$

step 2

The equation of the line in point slope form is

$y-y1=m(x-x1)$

take the point (3,5)

$m=-2$

substitute

$y-5=-2(x-3)$

$y-5=-2x+6$

$y=-2x+6+5$

step 3

$y=-2x+11$

therefore

In step 2, she didn’t use an x and y from the same coordinate pair

3 0

2 years ago

Read 2 more answers

4) 1% of what number is 10?

g100num [7]

Answer:

1000

Step-by-step explanation:

100 times 10 = 1000

6 0

2 years ago

Read 2 more answers

Ucini 12 VEGA LENA Gu 654 WENN WAREN Dita PHP The value of a share of stock decreases in value at a rate of $1.40 per hour durin

bekas [8.4K]

Answer: 1. x/h x h or $1.40/1h x 3.5h

2. $4.90

Step-by-step explanation: $1.40/1h x 3.5h= 1.4 x 3.5= 4.9

3 0

2 years ago