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Thepotemich [5.8K]
3 years ago
14

5. ALGEBRA Refer to the figure in

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

the value of x equals to 20 thats is solution okay

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A class of 340 students went on a field trip.
ipn [44]

Answer: 2 cars and 6 buses.

Step-by-step explanation:

x + y = 8

5x + 55y =

5 times 2 = 10

plus

55 times 6 = 330

Add 330 plus 10 = 340!

5 0
3 years ago
In Exercise, expand the logarithmic expression.<br> ln x(x + 1)
34kurt

Answer:

dy/dx = 2x+1/x(x+1)

Step-by-step explanation:

y = In x(x+1)

Let u = x(x+1) = x^2 + x

du/dx = 2x + 1

y = In u

dy/du = 1/u

dy/dx = dy/du × du/dx = 1/u × 2x+1 = 2x+1/u = 2x+1/x(x+1)

3 0
3 years ago
while remodeling his kitchen, Arthur paints the cabinets. he estimates that he paints 30 square feet every 20 minutes. how many
Andrew [12]

Answer:

90 square feet per hour

4 0
3 years ago
Read 2 more answers
The area (A of a circle with a radius of ris given by the formula A = 772 and its diameter (d) is given by d = 27. Arrange the e
lions [1.4K]

Answer:

A = πr² ← r is the radius and r = \frac{1}{2} d ← d is the diameter

Hence

π (\frac{1}{2} d)² = A, that is

\frac{d^2\pi }{4} = A ( multiply both sides by 4 )

d²π = 4A ( divide both sides by π )

d² = \frac{4A}{\pi } ( take the square root of both sides )

d = \sqrt{\frac{4A}{\pi } }

4 0
3 years ago
The profit earned by a hot dog stand is a linear function of the number of hot dogs sold. It costs the owner $48 dollars each mo
Natasha2012 [34]

Answer:

y=2x-48

Step-by-step explanation:

Let

y -----> the profit earned by the hot dog stand daily

x ----> the number of hot dogs sold

we know that

The linear equation that represent this problem is equal to

y=2x-48

This is the equation of the line into slope intercept form

where

m=2\frac{\$}{hot\ dog} ----> is the slope

b=-\$48 ---> is the y-intercept (cost of the day's supply)

4 0
3 years ago
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