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anygoal [31]
4 years ago
11

A person can do a job in 6 days. Another can do the same job in 4 days. If they work together, how long do they need to finish t

he job?
Mathematics
1 answer:
alukav5142 [94]4 years ago
6 0

Answer:

12/5 days

Step-by-step explanation:

if d=number of days

w=work completed

person one completes w=d/6 (ie. after 6 days (when d=6) work will be completed (w=1))

person two completes w=d/4 (ie. after 4 days (when d=4) work will be completed (w=1))

so total work competed together w=d/6 + d/4

the job is complete when w=1 so

1 = d/6 + d/4

12 = 2d + 3d

12 = 5d

d = 12/5

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prisoha [69]

Answer:

12.4 cm³

Step-by-step explanation:

From the picture attached,

Radius of the circular top of the cone = \frac{\text{Diameter}}{2} = \frac{2}{2}=1

Height of the cone = h

Lateral height of the cone = h

By applying Pythagoras theorem in the right triangle of the cone,

l² = r² + h²

6² = 1² + h²

h = \sqrt{36-1}

h = \sqrt{35}

Ice cream needed to fill one cone = Volume of the cone

Since, formula for the volume of the cone V = \frac{1}{3} \pi r^{2} h

V = \frac{1}{3}\pi (1)^2(\sqrt{35})

   = 6.195

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Ice cream needed to fill the two cones = 2 × 6.20

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Therefore, ice cream needed to fill the two cone = 12.4 cm³

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3 years ago
HELP PLEASE I NEED IT NOWWW.
Elina [12.6K]

Answer:

C.) 5

Step-by-step explanation:

If beth were 5 ( Making Julio 3)

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10+20+5+3 = 38

I hope this helps you :)

3 0
3 years ago
What division equation is related to 4*6=24
kvv77 [185]
Maybe something like 24/4=6. so sorry if I'm incorrect.
8 0
3 years ago
Read 2 more answers
Solve 6 + 5 √ 2 4 9 − 2 x = 7
NISA [10]

6+5\sqrt{249}-2x=7 \\-2x=7-6-5\sqrt{249} \\-2x\approx-77.9 \\x\approx\frac{-77.9}{2}\approx38.95

Hope this helps.

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3 years ago
Could you help me understand cross sections of three-dimenstional object its harder than it sound.​
umka21 [38]

A section, or cross-section, is a view of a 3-dimensional object from the position of a plane through the object. A section is a common method of depicting the internal arrangement of a 3-dimensional object in two dimensions. It is often used in technical drawing and is traditionally crosshatched.

Cross sections of three-dimensional objects are two-dimensional shapes of various sizes. They may be parallel to a side or base of the object or at an angle to these surfaces. A cross section may resemble the shape of the object’s side or base, or it may have a completely different shape.

5 0
3 years ago
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