3 years ago

Rate change word problems. Question attached

Mathematics

1 answer:

babymother [125]3 years ago

7 0

The Answer is 11.5 min it takes 6 people to paint 4 walls

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The circumference of F is 120 cm what is the length of DE the minor arc

AfilCa [17]

Answer:

Option E 15 cm

Step-by-step explanation:

we know that

The circumference of a circle subtends a central angle of 360 degrees

using proportion

Find out the length of arc DE by a central angle of 45 degrees

Let

x -----> the length of arc DE

$\frac{120}{360}=\frac{x}{45}\\\\x=120*45/360\\\\x=15\ cm$

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3 years ago

Line l is a perpendicular bisector of line segment A C. It intersects line segment A C at point B. Line l also contains points D

N76 [4]

Answer:

First one is DC

Second one is AB.

Step-by-step explanation:

Just did them on edge.

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3 years ago

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7+3 to the second power+(12-8) divided by 2x 4 is

cupoosta [38]

$\bf \stackrel{\mathbb{P~E~M~D~A~S}}{7+3^2+(12-8)\div 2\times 4}\implies 7+3^2+(\stackrel{\downarrow }{4})\div 2\times 4\implies 7+\stackrel{\downarrow }{9}+(4)\div 2\times 4 \\\\\\ 7+9+\stackrel{\downarrow }{2}\times 4\implies 7+9+\stackrel{\downarrow }{8}\implies \stackrel{\downarrow }{16}+8\implies 24$

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3 years ago

A car travels 9 miles in 7 minutes. How fast is it going in miles per hour? How fast is it going in meters per second?

Tems11 [23]

Answer:

he's going 77mph and then 2069 meters per hour.

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2 years ago

Solve. Simplify your answer. 5/8 x 2/3 = ?

Finger [1]

10/24 simplify to 5/12

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3 years ago