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3 years ago

There are 48 students in the dass. They arrange their desks in rows with 8 desks in each row.

Mathematics

1 answer:

Orlov [11]3 years ago

8 0

Answer:

6 rows

Step-by-step explanation:

We know that 48 desks are split up into rows of 8

If we divide the 48 total desks by the 8 desks in each row... we find the number of rows.

48/8 = 6

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Find the area of the rectangle.

Andreyy89

Answer: 5.6ft²

Step-by-step explanation:

Area of a rectangle = length x width

= $\frac{4}{5} ft$ (7ft)

= $\frac{28}{5}ft^{2}$

= 5.6ft²

5 0

2 years ago

Sum of two number is 120. If the larger number is four times the smaller number, wbat are the two numbers

tankabanditka [31]

x+y=120_______1

x=4*y_________2

x=4y

substitute 4y for x in equation 1

`4y+y=120

5y=120

eliminate the coefficient of y

y=120/5

y=24

now,input 24 for y in equation 2

`x=4y

x=4*24

x=96

thus, the numbers are

96 and 24

3 0

3 years ago

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jenyasd209 [6]

Step-by-step explanation:

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5 0

3 years ago

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Solve 6y2-5y-6 = 0 using the quadratic formula.

sergejj [24]

Answer:

Ay=3 over 2 or y=-2 over 3

Step-by-step explanation:

the quadratic formula: y={-b±√(b²-4ac)}/2a

In the equation 6y²-5y-6= 0, a=6, b=-5, c= -6

Substituting for the values in the formula we get:

{-(-5)±√[(-5²)-4(6)(-6)}/2(6)

{5±√169}12

={5±13}/12

(5+13)/12=3/2 or (5-13)/12= -2/3

4 0

3 years ago

Read 2 more answers

Triangle ABC is an oblique triangle. If angle A equals 57°, angle B equals 73°, and AB equals 24 in, what is the length of AC?

natulia [17]

Step-by-step explanation:

$\huge{\underbrace{\overbrace{\mathfrak{\pink{Answer:}}}}}$

Angle C must = [180 - 73 - 57 ] = [180 - 130] = 50°

And using rhw Law if Sines, we have.....

AB/sin C = AC/sin B → 24/sin(50) = AC/sin(73) → AC = 24*sin(73)/sin(50) = about 29.96 in

5 0

3 years ago