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VLD [36.1K]
3 years ago
15

If 75 equals a number plus four times the number, find the number

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
7 0
X + 4x = 75
Combine like terms:
5x = 75
Divide by 5 on each side of the equal sign:
x = 15
Helen [10]3 years ago
4 0
75 = x + 4x
75 = 5x
75 ÷ 5 = x
15 = x'

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Estimate.<br> 4,754 dived by 1.9 =
irinina [24]

Answer:

2502.1

Step-by-step explanation:

4754/1.9

= 2,502.1

Hence the andwer is 2502.1

8 0
3 years ago
A forest cover 43,000 acres. A survey finds that 0.2% of the forest is old growth tress. How many acres of old growth trees are
Sveta_85 [38]

Given:

Total forest area = 43,000

Old growth trees forest = 0.2%

To find:

The area of the old growth trees.

Solution:

We have,

Total forest area = 43,000

Old growth trees forest = 0.2%

Area of the old growth trees = 0.2% of 43,000

                                               = \dfrac{0.2}{100}\times 43000

                                               = 86

Therefore, the area of the old growth trees is 86 acres.

6 0
2 years ago
Name one real-world objeslct that suggests points​
JulijaS [17]

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magnets

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counter

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6 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPP
AlexFokin [52]

Answer:

A. x= 3, y= -2

Step-by-step explanation:

[2] 2x= 4y+14

[1] 3y+5x=9

Solve equation [2] for the variable  x

 [2]    2x = 4y + 14

 [2]    x = 2y + 7

// Plug this in for variable  x  in equation [1]

  [1]    5•(2y+7) + 3y = 9

  [1]    13y = -26

// Solve equation [1] for the variable  y

  [1]    13y = - 26

  [1]    y = - 2

// By now we know this much :

   x = 2y+7

   y = -2

// Use the  y  value to solve for  x

   x = 2(-2)+7 = 3

good luck, I hope this helps!!!

5 0
3 years ago
An NFL coach sometimes uses a defense that utilizes 5 defensive linemen, 4 linebackers, and 2 defensive backs. His roster (the p
german

Answer:

there are 4725 different ways to pick the 11 players

Step-by-step explanation:

assuming that a player can only play from its position and not from the other 2 , then each defensive position is independent from the others , and since the order each player is chosen is not relevant we have that:

total combinations = possible combinations of linemen * possible combinations of linebackers * possible combinations of defensive backs = combinations of 5 linemen  from 7 * combinations of 4 linebackers  from 6 * combinations of 2 defensive backs from 6 =  [ 7!/(5!*(7-5)!] * [ 6!/(4!*(6-4)!] * [ 6!/(2!*(6-2)!] = 7!/(2!*5!)*[ 6!/(4!*2!)]² = 4725 combinations

thus there are 4725 different ways to pick the 11 players

8 0
3 years ago
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