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alekssr [168]
2 years ago
6

Circumference of a circular disc is 157 cm, find its radius​

Mathematics
2 answers:
Zielflug [23.3K]2 years ago
7 0

Answer:

Owwwww would be a good time

just olya [345]2 years ago
7 0
Circumference = 2πr

Radius:

157 = 2πr

157/2π = r

r = 157/2π or 24.99 (nearest hundredth)
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the width of a rectangle is 6inches less than twice it’s length. Find the dimension of the rectangle if it’s area is 108 square
Sindrei [870]

Answer:

Width = 12   Length = 9

Step-by-step explanation:

We have to first find an equations with the given variables:

w = 2L - 6

Now apply the area format:

Length * Width

Since the area is 108 square inches

108 = l * w

108 = l(2l-6)

108 = l(2l) + l(-6)

108 = 2l^2 - 6l

Simplify:

(l-9) * (l+6) = 0

Since no number can be negative

w = 2*9(L)-6

w = 12

l=9

5 0
2 years ago
Mr Floyd is laying grass squares in his backyard. He will cover the entire yard except for the vegetable garden. How many square
Alenkasestr [34]

Here we can first find the area of yard and then subtract the area of vegetable garden to get the required area.

The formula to find area is given by:

A = l* w

Now we find area of yard:

length is 25 ft and width is 15 ft.

A = 25 * 15

Area of yard = 375 ft²

Area of vegetable garden:

length = 8ft and width =8ft

So the vegetable garden is a square.

Area = 8*8

Area of vegetable garden =64 ft²

Area of backyard to be laid with grass = Area of yard-Area of vegetable garden

Area required = 375 -64 = 311 ft²

Answer : The area of backyard in which grass is to be laid is 311 square feet.

3 0
3 years ago
Read 2 more answers
X+2y=12 <br> 3x-10y = 0<br><br> y=?<br> x=?
sergeinik [125]
~~x+2y=12  \\  ~~3x-10y=0 \\&#10;~------ \\~ -3/x+2y=12 \\  ~~~~~~3x-10y=0 \\ ------- \\ -3x-6y=-36 \\ ~~~~3x-10y=0 \\ +------- \\ ~~~~-16y=-36 \\ \\  ~~~~y= \frac{36}{16}\rightarrow \boxed{\frac{9}{4}} \\  \\
x+2. \frac{9}{4}  =12 \\  \\ x+ \frac{18}{4} =12 \\  \\  \frac{4x+18}{4} =12 \\  \\ 4x+18=48 \\ 4x=30 \\  \\ x=\boxed{\frac{15}{2}}
3 0
3 years ago
Read 2 more answers
Kareem purchased several packs of gum to place in gift baskets for $1.26 each. He spent a total of $8.82. How many packs of gum
777dan777 [17]

Answer: 7 packs of gum.

Step-by-step explanation:

If the total amount of the purchase is $8.82 and the individual price is $1.26, to find out how many packs Kareem purchased, we need to divide the total amount spent ($8.82) by the amount of each pack ($1.26), so:

8.82 ÷ 1.26 = 7

So, Kareem bought 7 packs of gum.

5 0
3 years ago
Solve the expression using pemdas (4+5)÷3×4​
Dennis_Churaev [7]

1) you add the variables in the bracket

(4+5)÷3×4

9÷3×4

2) you multiply 3 by 4

9÷3×4

9÷12

3) now you divide 9 by 12

9÷12

=0.75

7 0
3 years ago
Read 2 more answers
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