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4 years ago

What is 7/8 times c for c=8

2 answers:

4 0

Just plug n chug, if c=8.

7/8*c

turns into 7/8*8/1.

Cross cancel the 8's. They turn into 1's.

Thus. 7/1*1/1=7

7 is your answer.

drek231 [11]4 years ago

4 0

First you do seven (7) divided (/) by eight (8). Then substitute c for 8.
7/8=0.875
0.875(8)=7

Your answer is 7.

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saul85 [17]

$\large\underline{\sf{Solution-}}$

Let us assume that:

$\sf \longmapsto x = \sqrt{6 + \sqrt{6 + \sqrt{6 + ... \infty } } }$

We can also write it as:

$\sf \longmapsto x = \sqrt{6 + x }$

Squaring both sides, we get:

$\sf \longmapsto {x}^{2} =6 + x$

$\sf \longmapsto {x}^{2} - x - 6 =0$

By splitting the middle term:

$\sf \longmapsto {x}^{2} - 3x + 2x - 6 =0$

$\sf \longmapsto x(x - 3) + 2(x - 3 ) =0$

$\sf \longmapsto (x+ 2)(x - 3 ) =0$

Therefore:

$\longmapsto\begin{cases} \sf (x+ 2) =0 \\ \sf (x - 3) = 0 \end{cases}$

$\sf \longmapsto x = - 2,3$

But x cannot be negative. 

$\sf \longmapsto x = 3$

Therefore, the value of the expression is 3.

$\large\underline{\sf{Verification-}}$

Given:

$\sf\longmapsto x=3$

We can also write it as:

$\sf\longmapsto x = \sqrt{9}$

$\sf\longmapsto x = \sqrt{6+3}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{9}}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+3}}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+\sqrt{9}}}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+\sqrt{6+3}}}$

This pattern will continue.

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+\sqrt{6+...\infty}}}$

7 0

3 years ago

What is the first step to finding the equation of a line when 2 points are known?

vladimir1956 [14]

The first step to finding the equation of a line when 2 points are known....
the first step would be to use the slope formula to find the slope of the line

5 0

3 years ago

Mr. Esposito is 5 foot 11 inches tall. Mrs. Humbert is 63 inches tall. Who is taller and by how much?

zubka84 [21]

Answer:

Mr. Esposito is taller By 8 inches

Step-by-step explanation:

5 feet and 11 inches is equal to 71 inches. And 71 inches is greater than 63 inches. Therefore, Mr. Esposito is taller.

(71-63=8)

DON'T FORGET TO DOUBLE-CHECK!

3 0

3 years ago

Read 2 more answers

What is the value of n 9×27+2×31-28=n

Elanso [62]

277 is the correct answer i believe

8 0

3 years ago

If the concentration of mercury in the water of a polluted lake is 0.300 μg (micrograms) per liter of water, what is the total m

Reika [66]

Answer: 151.305 kg

Step-by-step explanation:

0.300μg = 0.3x10⁻⁶ g/l

mass in kg?

Volume of lake = surface area * depth

surface area = 13mi²

depth = 49 ft

Feet to miles

49 ft → mi = 0.00928 mi

(1 mi = 5280 ft)

V = 13*0.00928 = 0.121 mi³

cubic Miles to cubic meters

1mi³ = 4168182000 m³

0.121 mi³ = 504350022 m³

Cubic meters to liters

1L = 1000 m³

Lake has 5.04350022x10¹¹ L

Concentration = 0.3x10⁻⁶ g/l

Lake has 151305 g of Hg = 151.305 kg of Hg

6 0

3 years ago