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3 years ago

NEED BEFORE 11:59pm TODAY!!!

Mathematics

1 answer:

sdas [7]3 years ago

4 0

Answer:

-0.52

Step-by-step explanation:

1. 5x-3.8=-6.4

2. 5x-3.8=-6.4+3.8

3. 5x=-2.6

4. 5x=-2.6/5

5. -0.52

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After 18 minutes there will be 486 gallons of water drained.

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3 years ago

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Solve the inequality -1+4y<_31.

valina [46]

Answer:

$\large\boxed{y\leq8\to\{y\ |\ y\leq8\}\to y\in(-\infty,\ 8]}$

Step-by-step explanation:

$-1+4y\leq31\qquad\text{add 1 to both sides}\\\\-1+1+4y\leq31+1\\\\4y\leq32\qquad\text{divide both sides by 4}\\\\\dfrac{4y}{4}\leq\dfrac{32}{4}\\\\y\leq8$

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3 years ago

The optimal height h of the letters of a message printed on pavement is given by the formula <img src="https://tex.z-dn.net/?f=h

choli [55]

Answer:

The value of h is 42.956 approximately.

Step-by-step explanation:

Consider the provided formula $h=\dfrac{0.00252 d^{2.27}}{e}.$

Here d is the distance of the driver from the letters and e is the height of the driver's eye above the pavement. All of the distances are in meters.

We need to find the value of h where the value of d = 92.4 m, e = 1.7 m.

Substitute d = 92.4 m, e = 1.7 m in above formula and solve for h.

$h=\dfrac{0.00252\left(92.4\right)^{2.27}}{1.7}$

$h\approx\dfrac{0.00252\left(28978.4648\right)}{1.7}$

$h\approx\dfrac{73.0257}{1.7}$

$h\approx42.956$

Hence, the value of h is 42.956 approximately.

8 0

3 years ago

What is the answer 4 / 3 * 6.1328125 / 1 = ???

Ivahew [28]

4 over 3 in number form is 1.33333333333
1.33333333333 x 6.1328125 is
<span>8.17708333331</span>

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3 years ago

Solve for x. You must write your answer in fully simplified form.<br> 15x = -2

Evgesh-ka [11]

Answer: -7.5

15x divides by -2 gives it -7.5. It’s negative since they have two different signs. Positive and a negative.

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3 years ago