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rodikova [14]
3 years ago
12

The length of a rectangler picture is 5 inches more than three times the width find the dimensions of the picture if its perimet

er is 74 inches
Mathematics
1 answer:
OLga [1]3 years ago
4 0

Answer:

Length = 29 inches

width = 8 inches

Step-by-step explanation:

perimeter of a rectangle= p =2*L+2*w

L= Length

w = width

we have from the statement:

L= 5+3*w

p=74

so we have:

74 =2*(5+3*w)+2*w

74= 10+ 6w +2w

74-10=8w

64=8w

w = 64/8

w =8 inches = width

so L= 5+3*(8)

L= 5+24

L= 29 inches = Length

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How would the decimal point move to solve the equation 729 ÷ 101 = ________?
algol [13]

Answer:

according to long division, the decimal point would move 3 places to the right.

Step-by-step explanation:

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4 0
3 years ago
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An ice cream cone has a height of 4 in and a radius of 1 in. If the cone is 0.1 in thick, what is the difference (in in3) betwee
SSSSS [86.1K]

Answer:

0.79 in^3

Step-by-step explanation:

Given data for the cone

height h= 4 in

radius r= 1 in

hence diameter d= 2 in

thickness of cone= 0.1 in

The volume of the cone including the shell can be expressed as

volume=\frac{1}{3} \pi r^2h

volume= \frac{1}{3}*3.142*1^2*4\\\volume= \frac{12.568}{3} \\\volume= 4.189 in^3

The volume of the ice cream can be expressed as

N/B: the diameter of the ice cream is

2-(0.1*2)= 2-0.2= 1.8 in

hence the radius is 0.9 in

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The difference in volume is 4.189-3.39= 0.79 in^3

8 0
3 years ago
Help Please . its due in 5 hours and i cant find answers
dolphi86 [110]

Answer:

39 pi cubic inches

Step-by-step explanation:

The volume of a cone is (1/3)(area of the base)(height).

V=\frac{1}{3}Bh

Find the area of the circular base.  The circumference of a circle is C=2\pi r, so

2\pi r = 6\pi\\\\r=3

Now that you know the radius of the circular base, you can find its area:

A=\pi r^2 = \pi(3^2)=9\pi

The height of the cone is 13.  Time to use the volume formula.

V=\frac{1}{3}Bh\\\\V=\frac{1}{3}(9\pi)(13)\\\\V=39\pi

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3 years ago
Someone help please?
alukav5142 [94]

Answer:

form 1 question????????

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3 years ago
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