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SashulF [63]
3 years ago
7

Hey everyone I need help on the questions please!:)​

Mathematics
1 answer:
Aneli [31]3 years ago
8 0

Answer:

a. 1/2

b. 1 hair cut

c. 2.5

Step-by-step explanation:

4/8 divde by 4 to simplify and that gets you 1/2

8/4 is 2 so he does one hair cut every two hours

so you know how many he can do in 2 hours so add it up. It’s going to be 2 people in four hours so it will be half a hair cut in 5 hours

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The cross-sectional areas of a right pyramid and a right cylinder are congruent. The pyramid has a height of five units, and a r
Mazyrski [523]

Answer:

the volume of the right cylinder is 1.8 times the volume of the pyramid

Step-by-step explanation:

The volume of a pyramid is

V = \dfrac{1}{3} \times B\times H

where the height of the pyramid is 5

V = \dfrac{1}{3} \times B\times 5

V = \dfrac{5}{3} B \ units ^3

On the other hand, the volume of a right cylinder is

V = BH

where the height of the right cylinder = 3 units

V = 3 B units³

Since we know that the cross-sectional areas are congruent, comparing the two-volume, we have the ratio of their volumes to be:

\dfrac{V_p}{V_c}= \dfrac{\dfrac{5}{3}B}{3B}

\dfrac{V_p}{V_c}= \dfrac{5}{9}

9 V_p = 5 V_c

V_c = 1.8 \ V_p

Hence, the volume of the right cylinder is 1.8 times the volume of the pyramid

6 0
3 years ago
34 days to 2 weeks the ratio is
swat32
First you have to make the units same. it will be easier if you make both the units to be days.
2 weeks= 14days
ratio will be
34:14

if you can make it into simpler form, then make it. this answer can simplified into smaller form,thus,
34:14
17:7

the answer is 17:7
5 0
3 years ago
Starting with the standard form of an equation ax + by = c, solve this expression for y in terms of a, b, c, and x. then put the
Vika [28.1K]
Ax+by=c
a=(-by+c)/x
b=(-ax+c)/x
c=ax+by
x=(-by+c)/a
y=(-ax+c)/b. or y= -a/b x + c/b which is slope intercept form
4 0
3 years ago
Peter takes an 8-inch by 3-inch sheet of paper and cuts from one corner of the paper to the diagonally opposite corner. now pete
tekilochka [14]
First get the length of the side the was cut (Hypotenuse).

We can use Pythagorean theorem: a^2+b^2 = c^2
a = 8, b = 3 = 1.5, c = ?

plug into forumla

8^2 + 3^2 = 73

a=8,
b=1.5,
c = sqrt( 73) or 8.5

Now add all sides together to get perimeter...
8+3+8.5 = 19.5

The perimeter of each sheet is 19.5in.
3 0
3 years ago
Brooke multiplied 3 and 9 and got 17. Brooke knows her answer is wrong because she knows is should be approximately
34kurt

Answer: 3 times 9 is 27

Step-by-step explanation:

8 0
2 years ago
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