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3 years ago

(this is 12 year old math) Please help I don't understand.

Mathematics

2 answers:

Thepotemich [5.8K]3 years ago

7 0

9514 1404 393

Answer:

$465

Step-by-step explanation:

The problem statement tells you h represents the number of hours, and the number of hours is 7.

It also tells you f represents the number of fixtures, and the number of fixtures is 9.

And, the problem statement tells you the charge is 15h+40f, which is 15 times the number of hours plus 40 times the number of fixtures. Then the charges are ...

15·7 +40·9 = 105 +360 = 465

Ben Frank charges $465 for the work.

Romashka-Z-Leto [24]3 years ago

6 0

Answer:

if it wants an equation, 105h+360f but if its all together then its 465$

Step-by-step explanation:

15x7=105h

40x9=360f

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A square patio has an area of 168 square feet how long is each side of the patio to the nearest 0.05

omeli [17]

Answer:

12.96

Step-by-step explanation:

since it is a square, both sides are equal. to find the area of any square, it is the side squares. since you are given what the area is, simply square root 168.

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3 years ago

Which of the following is NOT a property of a paralleogram? * The opposite sides are equal. The opposite angles are equal. Each

MakcuM [25]

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The diagonals of all parallelograms do not bisect each other at 90 degree angles.

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4 years ago

Calculate time period of a simple pendulum if it takes 72 seconds to complete 24 oscillations

Anvisha [2.4K]

Answer:

The time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.

Step-by-step explanation:

Total number of oscillations = 24

Time taken to complete 24 oscillations = 2 seconds

So, the frequency 'f' of the simple pendulum will be:

$f=\frac{24}{72}$

$f=\frac{1}{3}$

Let 'T' be the time period.

$T=\frac{1}{f}$

$T=\frac{1}{\frac{1}{3}}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{1}{\frac{b}{c}}=\frac{c}{b}$

$T=\frac{3}{1}$

$T=3$

Therefore, the time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.

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3 years ago

Solve this quadratic equation by completing the square. x2 + 10x = 26

Misha Larkins [42]

  x² + 10x = 26
  x² + 10x + 25 = 26 + 25
  x² + 5x + 5x + 25 = 51
x(x) + x(5) + 5(x) + 5(5) = 51
x(x + 5) + 5(x + 5) = 51
(x + 5)(x + 5) = 51
(x + 5)² = 51
x + 5 = ±√(51)
- 5 - 5
x = -5 ± √(51)
x = -5 + √(51) or x = -5 - √(51)

5 0

3 years ago

Read 2 more answers

The area of a rectangle is 28yds2 , and the length of the rectangle is 1yd more than twice the width. Find the dimensions of the

Ber [7]

Answer:

Just get it by yourself hhahhahaha

Step-by-step explanation:

3 0

3 years ago

(this is 12 year old math) Please help I don't understand.​

(this is 12 year old math) Please help I don't understand.