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Anarel [89]
3 years ago
5

Please help! I really really need it.

Mathematics
1 answer:
Rainbow [258]3 years ago
4 0
The last one:   -4(3n+5)
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The sum of two numbers is 27. One of the numbers is three more than the other. Find the numbers,
bonufazy [111]

Answer:

12 and 15

Step-by-step explanation:

x + y = 27

x +3 = y

x = y - 3

y - 3 + y = 27

2y = 24

y = 12

7 0
3 years ago
Solve each single-step equation. Show your work. -15+n=-9
Serggg [28]

Answer:

6

Step-by-step explanation:

-15+6 means it goes minus basically its 15-6(-15+6)=-9

3 0
3 years ago
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Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:
mars1129 [50]

Answer:

A = (x + 15)(x + 10) − 5

Step-by-step explanation:

(x+15)(x+10)-5=A would be a solution

To make this easier, let's assign x a value. Let's say 3.

(3+15)(3+10)-5=A

(18)(13)-5=A

234-5=A

A=229

Now with this, we put x in the answer choice and the answer that gives an area of 229 is correct.

A. A=(3+20)(3+10)+12=(23)(13)+12=299+12=311 <u>Answer A is wrong.</u>

B. A=(3+20)(3+10)-12=(23)(13)-12=299-12=287 <u>Answer B is wrong.</u>

C. A=(3+26)(3+15)=(29)(18)=522 <u>Answer C is wrong.</u>

D. A=(3+14)(3+8)=(17)(11)=187 <u>Answer D is wrong.</u>

It's either I'm wrong or the answer choices are wrong.

New answer choices!

A. A=(3+20)(3+11)

=(23)(14)=322 Answer A is wrong.

B. A=(3+15)(3+10)+5

=(18)(13)+5=234+5=239  Answer B is wrong.

C. A=(3+15)(3+10)−5

=(18)(13)-5=234-5=229 Answer C is correct.

D. A=(3+9)(3+10)=(12)(13)=156 <u>Answer D is wrong.</u>

5 0
3 years ago
What is the fraction of 41.66667
Papessa [141]

Answer:

41\frac{2}{3}  

I hope this helps!

6 0
3 years ago
Read 2 more answers
What is the circumference of a 45 m circle
Kobotan [32]
<span>to solve circumference of a circle is diameter times pi.
C=141.3 cm</span>
3 0
3 years ago
Read 2 more answers
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