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Elan Coil [88]
3 years ago
12

What is the value of the expression (–5) -3? It’s -125

Mathematics
2 answers:
Hoochie [10]3 years ago
3 0

Answer:

Step-by-step explanation:

The correct answer would actually be 15 because (-5) multiplied by -3 makes it positive 15.

jekas [21]3 years ago
3 0

Answer: 15

Step-by-step explanation:

- × - = +

So, -5 × -3 = 15

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Talia used 1/3 of a piece of wood for the base of her project 1/4 of the piece of wood for the vertical support and the rest for
Veseljchak [2.6K]

Answer:

The fraction of wood used for horizontal support is \frac{5}{12}.

Step-by-step explanation:

Assume that the total piece of wood is of length 1.

It is provided that Talia used \frac{1}{3} of the piece of wood for the base of he project.

She use \frac{1}{4} of the piece of wood for the for the vertical support.

The remaining wood she used for horizontal support.

The amount of wood used for horizontal support can be computed by the subtracting the amount of wood used for base of the project and vertical support form 1.

Compute the amount of wood used for horizontal support as follows:

Horizontal\ support=1-Base\ of\ project-Vertical\ support\\= 1 - \frac{1}{3}-\frac{1}{4}\\  =\frac{12-4-3}{12} \\=\frac{5}{12}

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3 0
2 years ago
What is the first operation used to evaluate 13-2x3+4 divided by 4+4
lisabon 2012 [21]

Answer:

  multiplication

Step-by-step explanation:

The evaluation of ...

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starts with the multiplication, because there are no exponents or parentheses.

  13 -6 +4/4 +4

Next is the division:

  13 -6 +1 +4

Finally, the addition and subtraction:

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 12

_____

We have assumed your x is not a variable, but is intended to indicate multiplication. We have also assumed that your "divided by" implies no particular grouping, so that the numerator is the first preceding number and only the first following number is in the denominator.

6 0
3 years ago
You are remodeling your kitchen. You've contacted two tiling companies who gladly told you how long it took their workers to til
Ray Of Light [21]
The answer is 7x = 6(x + 15)

x - Jim's rate
y - Pete's rate
<span>Jim completed half the floor in 7 hours:  7x = half of the floor
</span><span>Pete completed the other half of the floor in 6 hours:    6y = half of the floor
So: 7x = 6y

</span><span>Pete can lay 15 more tiles per hour than Jim: y = x + 15

</span>7x = 6y
y = x + 15

Substitute the second equation into the first one:
7x = 6(x + 15)
6 0
3 years ago
Help Will give brainless<br> What is the slope of the line represented by the values in the table?
Olin [163]

Answer:

Slope = 2

Step-by-step explanation:

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6 0
3 years ago
Can anyone give me a hand with 18 and 19 please
Brums [2.3K]

Answer: (a-b)-(2x+y)

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3 0
2 years ago
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