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3 years ago

Question:

1 answer:

8 0

A) 1/5 + 5/9

find common denominator:
9*5 = 45

pillow case: 1/5 = 9/45
table cloth: 5/9 = 25/45

9/45 + 25/45 = 34/45 was used

B. using 45 as the denominator the full piece of cloth would be 45/45
fraction left over = 45/45 - 34/45 = 11/45 left

C. from A the pillow case uses 9/45, they have 11/45 left, because 9 is less than 11, they have enough to make a pillow case

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"The product of a six and a number increased by four is equal to

NeTakaya

Answer:

$6x + 4 = 12x - 20$

$x = 4$

Step-by-step explanation:

Let "x" be the number.

Product of 6 and x (6*x), increased by 4 = $6x + 4$

Product of 12 and x, (12*x), decreased by 20 = $12x - 20$ .

Set both expressions equal to each other and solve for x as shown below:

$6x + 4 = 12x - 20$ (equation)

Subtract 12 from both sides

$6x + 4 - 12x = 12x - 20 - 12x$

$-6x + 4 = -20$

Subtract 4 from both sides

$-6x + 4 - 4 = -20 - 4$

$-6x = -24$

Divide both sides by -6

$\frac{-6x}{-6} = \frac{-24}{-6}$

$x = 4$

7 0

4 years ago

What is 30 x 25 + 30^7? (No Calculator)

lidiya [134]

30 x 25 = 750

750 + 30^7:

30 x 30 x 30 x 30 x 30 x 30 x 30= 21870000000.

21870000000 + 750

=21870000750.

4 0

4 years ago

Which is the correct answer?

yuradex [85]

Step-by-step explanation:

y = x² - 16

x² = y + 16

x = sqrt(y + 16) because x is non-negative.

Hence the inverse function is f^(-1)(x) = sqrt(x + 16). (A)

4 0

3 years ago

Tell whether each integer is prime, composite or neither

melamori03 [73]

1.; 3.; 5. are prime numbers.
All others are composite numbers.
Good luck!

6 0

3 years ago

Lee's family had a garden in the shape of a right triangle. the total area of the garden is 16 square feet. if they expand the g

lana [24]

Area of right-angled triangle is given by;

Area, A = 1/2 *b*h, Where b=base, h=height

Therefore,

A1 = 1/2bh = 16 in^2
A2 = 1/2 (2b)(2h) = 2bh

Ratio of increase = A2/A1 = {2bh}/(1/2bh} = 4 (the area is increased 4 times)
The,
A2 = 4*16 = 64 in^2
Therefore,
The area is increased by (64-16) = 48 in^2

5 0

3 years ago