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Crank
2 years ago
15

За+ 2а=25 I need help

Mathematics
2 answers:
aleksandr82 [10.1K]2 years ago
8 0

Answer: a=5

Step-by-step explanation:

3a+2a=5a

5a=25

divide both sides by 5 to get a alone

a=5

Lorico [155]2 years ago
7 0

Answer:

5

Step-by-step explanation:

3a+2a=25

5a=25

/5 /5

a=5

check:

3*5=15

2*5=10

10+15=25

You might be interested in
The slope of a line passing through H (-2, 5) is -3/4. Which ordered pair represents a point on this line?
oksano4ka [1.4K]
Answer:
(6,-1)

Explanation:
The slope of the line can be calculated using the following formula:
slope = \frac{y2-y1}{x2-x1}

We are given that:
slope = -0.75
point (x1,y1) is (-2,5)

We will use each of the given points to calculate the corresponding slope, then compare the calculated slope with the given one.

For point (6,-1):
slope = \frac{-1-5}{6--2} = -0.75 ........> accepted choice

For point (2,8):
slope = \frac{8-5}{2--2} = 0.75 ........> rejected choice

For point (-5,1):
slope = \frac{1-5}{-5--2} = 4/3 ........> rejected choice

For point (1,1):
slope = \frac{1-5}{1--2} = -4/3 ........> rejected choice

Therefore, the first option is the only correct one.

Hope this helps :)
5 0
2 years ago
Please help me I need help today thank you and please show work
scoundrel [369]

17) x-8=11

18) 9-x=5

19) x+6=7

20) x+(-4)=-18

Step-by-step explanation:

17) The difference between a number and 8 is 11

Let number = x

then the equation will be:

x-8=11

Solving:

x-8=11

x=11+8\\x=19

18) Nine less than a number is five.

Let number = x

then the equation will be:

9-x=5

Solving:

9-x=5\\-x=5-9\\-x=-4\\x=4

19) Seven is equal to a number plus 6

Let number = x

then the equation will be:

x+6=7

Solving:

x+6=7\\x=7-6\\x=1

20) The sum of a number and -4 is -18

Let number = x

then the equation will be:

x+(-4)=-18

solving:

x+(-4)=-18\\x-4=-18\\x=-18+4\\x=-14

Keywords: Algebraic Expressions

Learn more about Algebraic Expressions at:

  • brainly.com/question/1617787
  • brainly.com/question/1600376
  • brainly.com/question/9720317

#learnwithBrainly

5 0
3 years ago
Select all of the following that are ordered pairs of the given function.
AleksAgata [21]

Answer:

I don’t for sure know the answer but I think it’s ”1”

Step-by-step explanation:

7 0
3 years ago
4x-2=18 find what x means
MakcuM [25]
4x-2=18 -2 on both sides 4x=16 divid by 4 on both sides x= 4
6 0
3 years ago
If 5 + b = 3 and a - b = 7 , then which of the following is true?
brilliants [131]

2a plus 6 equl eight i hink so

4 0
3 years ago
Read 2 more answers
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