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3 years ago

Two more than 16 times a number is the same as 21 less than the product of -7 and the number

Mathematics

2 answers:

slava [35]3 years ago

7 0

Answer:

-1

Step-by-step explanation:

Let the number be x, and we have equation:

16x + 2 = -7x - 21
16x + 7x = - 21 - 2
23x = - 23
x = -1

The number is -1

lara31 [8.8K]3 years ago

5 0

Answer:

-1

Step-by-step explanation:

"a number" = x

-- "Two more than 16 times a number." | 16 times a number means "16x" | Two more than just means add 2.

(16x + 2)

-- "Is the same as" means equals.

(16x + 2) =

-- 21 less than the product of -7 and the number | The product of -7 and the number means "-7x" | 21 less than means subtract 21.

(16x + 2) = (-7x - 21)

-- solve for x.

(16x + 7x) = (-21 - 2)

-- combine like terms.

23x = -23

-- Divide.

x = -1

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BabaBlast [244]

Answer:

x=3/7 and x= 3

Step-by-step explanation:

First simplify:

-14 x^2 +48x -18

divide everything by -2

-2(7 x^2 -24x +9) (Multiply the leading coefficient 7 by the constant 9)

-2 (x^2 -24x +63)

-2 [(x-3)(x-21)] Now divide the 7 that you multiplied earlier from 3 and 21

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Step-by-step explanation:

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3 years ago

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Tanya [424]

Answer:

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Step-by-step explanation:

Comenzaremos por dividir el triángulo en dos partes y definir H, como en la figura adjunta.

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También sabemos que, dado que el tirángulo menor es la mitad que el triángulo mayor, la relación entre áreas es:

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Dado que formamos dos triángulos rectángulos, podemos despejar el valor de H como:

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Marina86 [1]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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