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3 years ago

Translate the expression

Mathematics

2 answers:

andrew-mc [135]3 years ago

6 0

Answer:

Translate the expression

NO answering with links !!!

1) ten subtracted from the product of a number and -3 is 29

2) the difference between a number and nine , divided by 4 , is -7

Bess [88]3 years ago

6 0

Answer:

1) ten subtracted from the product of a number and -3 is 29

x*(-3) - 10 = 29
-3x = 39
x = -13

2) the difference between a number and nine , divided by 4 , is -7

x - 9/4 = -7
x = 9/4 - 7
x = -19/4

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3 years ago

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Olin [163]

Answer:

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Step-by-step explanation:

8/1=8

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3 years ago

Which of the following expressions can be factored by grouping? (Select all that apply.)

Greeley [361]

Answer:

Options (3), (4) and (5)

Step-by-step explanation:

1). a² - 9a + 7ab + 63b

= a(a - 9) + 7b(a + 9)

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Therefore, can't be factored by grouping.

2). 3a + 4ab - b - 12

= a(3 + 4b) - 1(b - 12)

We can't solve it further.

Therefore, can't be factored by grouping.

3). ab + 6b - 2a - 12

= b(a + 6) - 2(a + 6)

= (b - 2)(a + 6)

We can be factored this expression by grouping.

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= (x² + 7)(x + 9)

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3 years ago

A box is 12 inches long, 5 inches wide, and 4 inches wide high. What is the surface area, in square inches (sq. in.) of the clos

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3 years ago

Read 2 more answers

The length of a rectangle is eight more than twice its width. The perimeter is 96 feet. Find the dimensions of the rectangle

Debora [2.8K]

Answer:

The width of the rectangle is 14'8", and the length is 33'4"

Step-by-step explanation:

We're given two pieces of information:

The length is eight more than twice the width:

$l = 2w + 4$

The perimeter is 96 feet:

$p = 96$

We also need to apply one more piece of information that is not provided here, and that is the relationship between the perimeter of a rectangle, and it's length and width:

$p = 2l + 2w$

We can solve for w by plugging the other two values into the last:

$p = 2w + 2l\\96 = 2w + 2(2w + 4)\\96 = 2w + 4w + 8\\88 = 6w\\3w = 44\\w = \frac{44}{3}\\w = 14\frac{2}{3}$

Now we can find the length by plugging w into the first equation:

$l = 2w + 4\\l = 2(14\frac{2}{3}) + 4\\l = 29\frac{1}{3} + 4\\l = 33\frac{1}{3}$

One third of a foot is four inches, so the width is 14'8" and the length is 33'4"

To make sure our answer is correct, we should plug those numbers back into the area equation and see if we're right:

$p = 2l + 2w\\p = 2(33\frac{1}{3}) + 2(14\frac{2}{3})\\p = 66\frac{2}{3} + 29\frac{1}{3}\\p = 96$

So we know our answer's correct

8 0

3 years ago