$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 1.80&20\\ x&100 \end{array}\implies \cfrac{1.80}{x}=\cfrac{20}{100}\implies \cfrac{1.8}{x}=\cfrac{1}{5} \\\\\\ 9.0=x\implies 9=x$

3 0

3 years ago

What is the value of f(x)=4x-7 for x=-3

Mrac [35]

Answer:

F(x)= -19

Step-by-step explanation:

Just plug in ‘-3’ for every ‘x’ in the equation.

4(-3)-7

-12-7

F(x)= -19

8 0

4 years ago

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2.) A zoo is raising a young elephant. They put him on a special high-protein diet to gain weight rapidly. He gains 6 kilograms

Elena L [17]

Answer:

The weight after 20 months is 210 kilos.

Step-by-step explanation:

1 month = 6 kilos
=> 8 months = 6 x 8 = 48 kilos
=> x + 48 = 138
=> x = 90

This means that the starting point is 90 kilos.

=> 1 month = 6 kilos
=> 20 months = 6 x 20 kilos
=> 20 months = 120 kilos
=> 90 + 120 = weight in 20 months
=> 210 kilos = weight in 20 months

Hence, the weight after 20 months is 210 kilos.

Hoped this helped.

$BrainiacUser1357$

5 0

3 years ago

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