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Fittoniya [83]
3 years ago
14

1/2 (5-2h) = h/2, solve for h

Mathematics
2 answers:
Brilliant_brown [7]3 years ago
8 0

Answer:

h = 1 2/3

Step-by-step explanation:

1/2 (5-2h) = h/2

Multiply each side by 2

(5-2h) = h

Add 2h to each side

(5-2h +2h) = h+2h

5 = 3h

Divide by 3

5/3 = 3h/3

5/3 =h

1 2/3 = h

Check

1/2 (5-2*5/3) = 5/3/2

1/2 ( 5 - 10/3) = 5/6

1/2 ( 15/3 - 10/3) = 5/6

1/2 ( 5/3) = 5/6

5/6 = 5/6

olga55 [171]3 years ago
8 0

Answer:

A

Step-by-step explanation:

So we have the equation:

\frac{1}{2}(5-2h)=\frac{h}{2}

First, let's multiply both sides by 2 to get rid of the fractions. The 2s will cancel. So:

2(\frac{1}{2}(5-2h))=2(\frac{h}{2})

Simplify:

5-2h=h

Add 2h to both sides:

5=3h

Divide both sides by 3:

h=5/3

Change into mixed fractions:

h=1\frac{2}{3}

So, our answer is A.

And we're done!

To check, substitute 5/3 back in:

\frac{1}{2}(5-2(5/3))=\frac{(5/3)}{2}

Multiply and divide:

\frac{1}{2}(5-10/3)=\frac{5}{6}

Subtract on the left:

\frac{1}{2}(5/3)=\frac{5}{6}

Multiply:

\frac{5}{6}\stackrel{\checkmark}{=}\frac{5}{6}

So, our answer is correct!

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Find the distance between (-4,-3) and (-8,7)​
wariber [46]

Answer:

√116  (or 10.77)

Step-by-step explanation:

(refer to attached )

in this case the points given are (-4,-3) and (-8,7)

hence x1 = -4, y1 = -3, x2 = -8, y2 = 7

D = √[ (x2-x1)² + (y2-y1)²  ]

= √[ (  -8 - (-4) )² + (  7 - (-3)  )²  ]

= √[ (  -8 +4 )² + (  7 + 3  )²  ]

= √[ (  -4 )² + (  10  )²  ]

= √[ (  16 ) + (  100  )  ]

= √116

= 10.77

8 0
2 years ago
A charity is holding a benefit at an Italian restaurant. The owner of the restaurant offers to donate $200 in addition to $4 for
iren [92.7K]

Answer:

200 divided 4

Step-by-step explanation:

5 0
3 years ago
Plz help me either and questions 1 or 2
dexar [7]
Multiply each side by 2.5 than add for perimeter .
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A cube with sides 5 inches, and a pyramid with base edges 5 inches. What is the height, so that the volume of the cube and the p
Ostrovityanka [42]

<u>1</u><u>5</u><u> </u><u>inches</u> is the height of the pyramid

Step-by-step explanation:

The volume of a cube is a³

Given <em>a</em> = 5 inches

→ Volume = a³

= 5³

= 5×5×5

= <u>125 in²</u>

The volume of a pyramid is \frac{1}{3} {a}^{2}h

Given a = 5 inches , h = height of pyramid

=  >  \frac{1}{3} {a}^{2} h

=  >  \frac{1}{3}(5)^{2}h

=  >  \frac{1}{3} \times 25 \times h

=  >  \frac{25}{3}h

then,

125 =  \frac{25h}{3}

=  > 25h = 125 \times 3

=  > 25h = 375

=  > h =  \frac{375}{25}

=  > h = 15

Hence, the height of pyramid is <u>1</u><u>5</u><u> </u><u>inches</u>

7 0
2 years ago
The perimeter of a rectangular movie screen at a local cinema is 148 feet. If the length of the screen is 30 feet longer than th
Rudiy27

The perimeter of a rectangle = 2(l + w)

l = length

w = width

In this problem,

w = x

l = x + 30

the perimeter = 148

Let's plug our values into the perimeter formula above.

148ft = 2(x + x + 30ft)

Combine like terms.

148ft = 2(2x + 30ft)

Distribute the 2

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Subtract 60 from both sides

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Divide both sides by 4

22ft = x

The width = x = 22ft

The length = x + 30 = 22 + 30 = 52ft

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