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MrRa [10]
2 years ago
14

Which of the following expressions is equal to 5 - 2m?

Mathematics
2 answers:
lesantik [10]2 years ago
6 0

Hey there!

In order for us to find out which one is equivalent to 5 – 2m , we can go through all of your options to see which one gives us that!

“Equivalent to 5 – 2m”

Option A.

7 – 2(m + 1)

Distribute

7 – 2(m) + 2(1)

7 – 2m + 2

COMBINE LIKE TERMS

7 – 2 = 5

Option Answer: 5 – 2m

Option A can be a possible ANSWER ✅

Option B.

7 - (2m - 5)

DISTRIBUTE

7 – 2m + 5

COMBINE LIKE TERMS

7 + 5 = 12

–2m = –2m

Option Answer: –2m + 12

Option B CAN’T possibly be your ANSWER ❌

Option C.

7 - 2(m - 2)

DISTRIBUTE

7 - 2(m) + (–2)(–2)

7 – 2m + 4

COMBINE YOUR LIKE TERMS

7 + 4 = 11

–2m = –2m

Option answer: –2m + 11

Option C. CANT possibly be your ANSWER ❌

Now that we have went through ALL of your choices, this leaves “Option A” as your answer

Answer: Option A). 7 - 2(m + 1) ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

zmey [24]2 years ago
3 0

Answer:

the second one

Step-by-step explanation:

7 - (2m - 5)

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na2s + hcl _____ nacl + h2s Which of these would represent the coefficients needed to balance this equation? A) 1, 1, 1, 1 B) 1,
USPshnik [31]

Answer:

B) 1, 2, 2, 1

Step-by-step explanation:

In given equation:

Left side:                                Right Side:

  2 Na                                          1 Na

  1 S                                              1 S

  1 H                                             2 H

  1 Cl                                             1 Cl

To equal the number of Na and H atoms on both sides, HCl and NaCl will have a coefficient of 2 to balance the equation while Na₂S and H₂S will have a coefficient of 1.

1 Na₂S + 2 HCl ⇒ 2 NaCl + 1 H₂S

5 0
3 years ago
The sales tax in a major city is 7%. Find the cost, including the tax charged on a purchase of $200.
Vitek1552 [10]

Answer:

$214

Step-by-step explanation:

200*0.07 = 14, 200 + 14 = 214

6 0
3 years ago
Jordans have a rectangular garden. want to build a diagonal pathway across he garden. the length of pathway is 90 ft. width of g
blondinia [14]
So we see the pythagorean theorem
a^2+b^2=c^2
diagonal=c
width=a or b, pick one
width=a
legnth=b
width is 5 times more than 2 times legnth of garden
w=5(2legnth)
this doesn't make sense since the legnth is normally longer than the width, but we'll stick with that
w=5(2l)
w=10l
a=10b
(10b)^2+b^2=90^2
100b^2+b^2=8100
101b^2=8100
divide by 101
b^2=80.198 aprox 80.2
square root
8.95533
legnth of garden =8.96
to find width subsitue
w=10l
w=89.56

legnth=8.96
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4 0
3 years ago
Read 2 more answers
The length of a square is 4x-3. Find the area in terms of x
prisoha [69]

Answer:

The area  of square in terms of x = 16x² -24x + 9

Step-by-step explanation:

It is stated in the question that the length of a square = 4x - 3

Formula to find the area of the square is

<h2 /><h2>Area = length²</h2><h2 />

Area = ( 4x - 3 )²

<em>by using ( a - b )² = a² + b² - 2ab</em>

here a = 4x and b = -3

So,

(4x)² + (-3)² - 2(4x)(3)

16x² + 9 - 2(12x)

16x² + 9 - 24x

16x² -24x + 9

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6 0
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Felipe is planning a party. He has $50.00 to spend on sandwiches that cost $2.50 per person, $25.00 to spend on drinks that cost
Maksim231197 [3]

Answer:

Its B

Step-by-step explanation:

In all, he has $100 to spend since $50+$25+$25=$100. We have x people coming and he has to spend $2.50, $1.50, and $3.00 per person, respectively. The phrase "per person" indicates we must multiply, so we have to multiply each value by "x." To find out how much money he has left, we must subtract. All of this put together is 100-(2.50x+1.50x+3.00x). Add the like terms and you get 7x. Your final expression would be 100-7x, which is answer choice b.

3 0
3 years ago
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