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Dmitriy789 [7]
3 years ago
6

Whats the answer to (2w - 9) + (-4w -5)

Mathematics
2 answers:
elena-s [515]3 years ago
7 0
(2w - 9) + (-4w - 5)

Get rid of the parenthesis.

2w - 9 - 4w - 5

Combine like terms.

(2w - 4w) + (-9 - 5)

Simplify.

(-2w) + (-14)

Get rid of the parenthesis.

-2w - 14

~Hope I helped!~
Lubov Fominskaja [6]3 years ago
6 0
The final answer would be <span>−2w−<span>14
</span></span>
<span><span><span><span><span><span>2w+</span>−9</span>+</span>−4w</span>+</span>−5

</span>Combine Like Terms:
<span><span><span>2w+−9</span>+<span>−4w</span></span>+<span>−5
</span></span>
<span><span>(<span>2w+<span>−4w</span></span>)</span>+<span>(<span>−9+−5</span>)
</span></span>
<span>2w+<span>−14

</span></span>
<span>Your final answer:</span><span><span>−<span>2w</span></span>−14</span>
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Please help need this done now hurry 1 question below!! 25 points
timofeeve [1]
So we need to find the inequality, Simple! 
So we only have 5 dollars. That we cannot change. 
But the snadwich, however, we can change how much we buy. But this problem is asking us how many we can buy. So that is an x. So far, we have 2.25x.
Then we have to use the inequality sign 'less than or equal to' because we can buy less or equal to 5 dollars. 

So the equation is 2.25x \leq 5
Then we solve by isolating the x. We divide 2.25 both sides then we get x \leq 2
5 0
3 years ago
The sum of the tens digit and the hundreds digit of a number is three times the units digit. 1/5 of the sum of all three digits
Crazy boy [7]

Answer: The numbers are:

965

875

785

695

Step-by-step explanation:

We have a 3 digit number that can be written as:

a*100 + b*10 + c

Where a, b, and c are single-digit numbers.

a is the hundreds

b is the tens

c is the unit.

We know that:

"The sum of the tens digit and the hundreds digit of a number is three times the units digit."

a + b = 3*c

" 1/5 of the sum of all three digits is 1 less than the units digit."

(a + b + c)/5 = c - 1

Then we have the two conditions:

a + b = 3*c

(a + b + c)/5 = c - 1

From the first one, we can write:

(a + b)/3 = c

Replacing that in the other equation we get:

(a + b + a/3 + b/3)/5 = a/3 + b/3 - 1

(4/3)*(a + b)/5 = (a/3 + b/3) - 1

(4/15)*(a + b) = (a + b)/3 - 1

(4/15)*(a + b) - (a + b)/3 = - 1

-(1/15)*(a + b) = -1

a  = 15 - b

Then we can give different values for b, and find the values of a and c, where a and c must be positive.

b = 9

a = 15 - 9 = 6

Then:

c = (9 + 6)/3 = 5

(notice that a + b = 15, then c will be always equal to 5, reggardless of the values of b and a).

This number will be:

695.

if b = 8, then:

a = 15 - 8 = 7

and c = 5, same as before.

the number is 785.

If b = 7, then:

a = 15 - 7 = 8

The number is 875

if b = 6, then:

a = 15 - 6 = 9

The number is:

965

4 0
3 years ago
If f(x)=x+7 and g(x)=1/x-13, what is the domain of (f0g)(x)?
aev [14]

Answer:

Step-by-step explanation:

Hope this helps :)

6 0
3 years ago
The distance between two parks on a city map is 1.8 inches. The actual distance between the parks is 2 miles. In the same city,
Nata [24]
0.72 or the first option. Hope this helps.
8 0
3 years ago
Select the correct answer.
Elina [12.6K]

Answer:

  A)  6.86×10⁴

Step-by-step explanation:

You want to write 68600 in scientific notation.

<h3>Expanded form</h3>

The number 68600 can be written in expanded form with exponents as ...

  68600 = 6×10⁴ +8×10³ +6×10² +0×10¹ +0×10⁰

The left-most term of this sum tells you the exponent in scientific notation:

  68600 = 6.86×10⁴

5 0
1 year ago
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