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Yuliya22 [10]
3 years ago
8

How many meters are in 20 yards ?

Mathematics
1 answer:
Dafna1 [17]3 years ago
4 0

Answer:

18.288

Step-by-step explanation:

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Solve the equation below and find the variation constant, k .Find y when x = 7 and z=5, if y varies jointly as x and 2, and y= 1
Vlada [557]
<h3>Answers:</h3>

Variation Constant: k = 7/6

y = 245/6 when x = 7 and z = 5

====================================

Explanation:

"y varies jointly as x and z" means that y = kxz

We have (x,y,z) = (4,14,3) as one triple, so,

y = kxz

14 = k*4*3

14 = 12k

12k = 14

k = 14/12

k = 7/6 is the variation constant

The equation goes from y = kxz to y = (7/6)xz

----------------

Plug in x = 7 and z = 5 to find y

y = (7/6)xz

y = (7/6)*7*5

y = (7/6)*(7/1)*(5/1)

y = (7*7*5)/(6*1*1)

y = 245/6

4 0
3 years ago
Can someone please explain with answer?
ira [324]

Using: A^2+b^2=c^2

A&b= (√10)^2=10

10+10=c^2

20=c^2

(take the square root of 20)

c=2√5

Your answer is D

7 0
3 years ago
Read 2 more answers
Find the whole. 60% of what is 24
dmitriy555 [2]
40, because 6×4=24 and 10×4=40
3 0
3 years ago
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.1√a^6 if a&lt;0
Romashka-Z-Leto [24]

Answer:

The answer for first one is,

a³

Answer for Second one is,

n.

Answer for 3rd one is.

-3y

Answer for number four.

x⁹

sorry couldn't answer number 5.

8 0
3 years ago
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A price of a at usually cost £50 is increased to £65. Work out the percentage increase
Nutka1998 [239]
Solution :

Original price of a toy( A ) = £50

Increased price = £65

price difference = £65 - £50 =£15

Increased % = ( difference × 100 )/A

= ( 15 × 100 )/50

= 30%

•••••
3 0
3 years ago
Read 2 more answers
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