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3 years ago

A tree farm sold a total of 380 trees.

Mathematics

1 answer:

Andre45 [30]3 years ago

3 0

Answer: 45

Step-by-step explanation: If you evaluate how much 15% of holly trees there were and the 2/5, consisting of maple trees then both of the amounts combined is, 55 then the remainder in of trees, the dogwoods, is 45

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Factor 2x^2 + 14x + 12

8_murik_8 [283]

2(x+6)(x+1)

2x^2 + 14x + 12
2(x^2 + 7x + 6)
2(x+6)(x+1)

Basically thats it

8 0

3 years ago

Suppose that y varies directly with x and at the same time varies inversely with z and y=12 when x=6 and z=-2. Write the equatio

ki77a [65]

Answer:

Answer:

y =18

Explanation

Step-by-step explanation:

3 0

3 years ago

A tube is being stretched while maintaining its cylindrical shape. The height is increasing at the rate of 2 millimeters per sec

hoa [83]

Answer:

V = πr²h

S=2πrh

h= 2/3 millimeters

new height= 8/3 millimeters

S= 8π millimeters square

New surface area = 32π millimeters square

Step-by-step explanation:

The volume of the cylinder is given by V = πr²h where r is the radius and h is the height.

The surface area of the cylinder is given by S= 2πrh + 2πr²

Where πr² gives the area of the base and 2πr² gives the area of the top and bottom surfaces. The surface area S of a cylinder, not including the top and bottom of the cylinder, is therefore S=2πrh.

V = πr²h

96π= π (6*6) (h+2)

96 = 36 (h+2)

96/36= h+2

h= 96/36-2

h= 96-72/36

h= 24/36

h= 4/6

h= 2/3 millimeters

New height

h + 2= 2/3 + 2

= 2+6/3= 8/3 millimeters

Now S =2πrh

S = 2π(6) (2/3)

S= 8π millimeters square

New Surface area

S = 2π(6) (8/3)

S= 32π millimeters square

6 0

3 years ago

A train to New York city leaves a station every 7 minutes. Another train to Boston leaves the station every 6 minutes. Suppose i

Virty [35]

Answer:

7:12 a.m

Step-by-step explanation:

Given that:

Train to New York city leaves station every 7 minutes

Train to Boston leaves station every 6 minutes

Current time = 6:30 a.m

Time both will leave station together is obtained by finding the least common multiple of 6 and 7

Multiples of ;

6 = 6, 12, 18, 24, 30, 36, 42, 48, 54, 60,...

7 = 7, 14, 21, 28, 35, 42, 49, 56, 63, 70,...

The least common multiple of 6 and 7 is 42.

Hence, both trains will leave the station together after 42 minutes ;

Current time + 42 minutes

6:30 a.m+ 42 minutes = 7:12 a.m

7 0

3 years ago

Solve 3x + y = 1 for y*

guapka [62]

Answer:

y = 1 - 3x

Step-by-step explanation:

hopes this helps

4 0

3 years ago