3 years ago

5+10/x=x+8 Solve the equation with steps

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

7 0

Answer:

2 and -5

Step-by-step explanation:

$5+\dfrac{10}{x}=x+8 \\\\\\-3+\dfrac{10}{x}=x \\\\\\-3x+10=x^2 \\\\\\x^2+3x-10=0 \\\\\\(x+5)(x-2)=0 \\\\\\x=2,-5$

Hope this helps!

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What number is 7/10 more than 0.75

djyliett [7]

Answer:
1.45 or 145/100

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3 years ago

Find the area of the shaded sector. Round to the nearest tenth. Please help.

Maslowich

The formula for area of a sector is...

A = $\frac{1}{2} r^{2}$ θ

NOTE θ is converted from degree to radian

θ = 167 × $\frac{\pi }{180}$

θ = $\frac{167\pi }{180}$

so...

A = $\frac{1}{2}(17.8)^{2} (\frac{167\pi }{180})$

A = (1/2)(316.84)(2.9146)

A = 158.42 * 2.9146

A = 461.7

Hope this helped!

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4 years ago

Need help ASAP!<br> Can you make $20 by using seven $1 and $5 bills?

Varvara68 [4.7K]

No i dont think you can because if you have 7 ones and one 5 that wouldnt be 20 i.d.k tho

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3 years ago

A bicycle trail has the shape of a circle has a diameter of 2 miles Michelle bike around the trail how far did Michelle bike

dezoksy [38]

Answer:

6.28 miles

Step-by-step explanation:

How far Michelle bike around the bicycle trail is the circumference or perimeter of bicycle trail.

This is given by:

$C = \pi \: d$

where d=2 miles is the diameter of the bicycle trail.

We substitute to get:

$C = \pi \: \times 2 = 2\pi$

$C = 6.28$

Therefore she travelled approximately 6.28 miles

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3 years ago

The perimeter of a triangle equals 16 centimeters. Two of its sides are equal and each of them is 2.9 centimeters bigger than th

sweet [91]

$x+2.9-\text{the length of two side}\\x-\text{the length of third side}\\\\\text{The equation}\\\\x+x+2.9+x+2.9=16\\3x+5.8=16\ \ \ \ \ \ |-5.8\\3x=10.2\ \ \ \ |:3\\x=3.4\\x+2.9=6.3\\\\Answer:\ 6.3\ cm,\ 6.3\ cm\ and\ 3.4\ cm$

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3 years ago