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3 years ago

15

PLSS HELP IF YOU TURLY KNOW THISS

2 answers:

dangina [55]3 years ago

6 0

Answer:

$\frac{0.3x - 2.1}{3} = 0.4 \\ 0.3x - 2.1 = 0.4 \times 3 \\ 0.3x - 2.1 = 0.12 \\ 0.3 x = 0.12 + 2.1 \\ 0.3x = 2.22 \\ x = \frac{2.22}{0.3} \\ x = 7.4$

ollegr [7]3 years ago

5 0

Answer:

$\frac{0.3x - 2.1}{3} = 0.4 \\ 0.3x - 2.1 = 0.4 \times 3 \\ 0.3x - 2.1 = 1.2 \\ 0.3x = 1.2 + 2.1 \\ 0.3x = 3.3 \\ x = \frac{3.3}{0.3} \\ \boxed{x = 11}$

<u>x = 11</u> is the right answer.

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Patricia but 16 hair clips for three dollars X number of hair clips cost $.15 each of the rest cost $.20 each write inequality i

Sholpan [36]

Answer:

The inequality in therms of x is $0.15x+0.2(16-x)\leq 3$ .

Patricia had bought at least <u>4 hair clips</u> of cost $0.15 each.

Step-by-step explanation:

Given:

16 hair clips = $3

$x$ hair clips = $0.15 each

$(16-x)$ hair clips = $0.20 each

We need to find the minimum number of hair clips of $0.15 that she bought.

Solution:

Now we can say that;

$x$ hair clips multiplied by $0.15 plus $(16-x)$ hair clips multiplied by $0.2 should be less than or equal to 3.

framing in equation form we get;

$0.15x+0.2(16-x)\leq 3$

Hence The inequality in therms of x is $0.15x+0.2(16-x)\leq 3$ .

$0.15x+3.2-0.2x\leq 3$

Combining like terms we get;

$0.15x-0.2x\leq 3-3.2\\\\-0.05x\leq -0.2$

Dividing both side by -0.05 we get;

$\frac{-0.05x}{-0.05}\leq \frac{-0.2}{-0.05}\\\\x\geq 4$

Hence Patricia had bought at least <u>4 hair clips</u> of cost $0.15 each.

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3 years ago

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Sindrei [870]

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elixir [45]

Answer:

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Step-by-step explanation:

10 x 19 = 190

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A horse can run 44 per second for several minutes. A cheetah can run faster (88 feet per second) but can only sustain its top sp

qaws [65]

Answer:

44 feet

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3 years ago