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denis23 [38]
3 years ago
11

There are 18 fish in a pond. 9 carp, 8 koi,

Mathematics
1 answer:
svetlana [45]3 years ago
7 0

Answer:18/5

Step-by-step explanation:

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you have a piece of wood that is 72 inches long u cut the wood into three pieces the second piece is 6 inches longer than the fi
tangare [24]

Let

x---------> the length of the first piece

y---------> the length of the second piece

z---------> the length of the third piece

we know that

x+y+z=72 -------> equation 1

y=x+6 -----> solve for x

x=y-6 -------> equation 2

z=6+y -------> equation 3

substitute equation 2 and equation 3 in equation 1

[y-6]+y+[6+y]=72

3y=72

y=(72/3)=24 in

<u>Find the value of x</u>

x=y-6 -------> equation 2

x=24-6=18 in

<u>Find the value of z</u>

z=6+y -------> equation 3

z=6+24=30 in

therefore

<u>the answer is</u>

the length of the first piece is 18 in

the length of the second piece 24 in

the length of the third piece is 30 in

7 0
3 years ago
What is the solution of x - 9/ 7x + 2 &lt; 0
vampirchik [111]

Answer:

x>7

Step-by-step explanation:

6 0
3 years ago
Tickets to a school musical cost $7.25. The amount received from ticket sales is $833.75. How many tickets were sold?
KonstantinChe [14]

Answer:  115

Divide 833.75 by 7.25

5 0
3 years ago
Read 2 more answers
Find the value of x round to the nearest tenth
zzz [600]

Answer:

  4.1 cm

Step-by-step explanation:

The segment marked x bisects the chord, so the triangle shown has legs x and 7.8, and hypotenuse 8.8.

The Pythagorean theorem can be used to find x:

  8.8² = x² +7.8²

  x² = 8.8² -7.8² = 77.44 -60.84 = 16.60

  x = √16.6

  x ≈ 4.1 . . . cm

7 0
3 years ago
Find the value of x in the triangle shown below
Georgia [21]

Answer:

the length of the hypotenuse must be 10.

Step-by-step explanation:

This is a right triangle, so we can apply the Pythagorean Theorem.

6² + 8² = 10²   so the length of the hypotenuse must be 10.

6 0
3 years ago
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