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Crank
3 years ago
7

Nine times the sum of a number and 2 is 189. I need to make it to an equation.

Mathematics
1 answer:
Olegator [25]3 years ago
3 0

<em>Equation:</em>

9(a+2)=189

<em>Solve the equation:</em>

9a+18=189

9a=189-18

9a=171

a=171/9

a=19

<em>Check the solution:</em>

Let a=19

9(a+2)=189

9(19+2)=189

171+18=189

189=189


Therefore, the equation is 9(a+2)=189 and a is 19.

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Which choice is the solution for this system ? 2x − 5y = 14 x + 3 2 y = 5
VashaNatasha [74]

Answer:

The required solution is (5.75,-0.5). It can be written as (\frac{11}{4},-\frac{1}{2}).

Step-by-step explanation:

The given equations are

2x-5y=14                       .... (1)

x+\frac{3}{2}y=5            .... (2)

Multiply the equation (2) by 2.

2x+3y=10                     .... (3)

Subtract equation (1) from equation (3).

2x+3y-(2x-5y)=10-14

2x+3y-2x+5y=-4

8y=-4

y=-\frac{1}{2}=-0.5

Put this value in equation (1).

2x-5(-0.5)=14

2x+2.5=14

2x=11.5

x=5.75

Therefore the required solution is (5.75,-0.5). It can be written as (\frac{11}{4},-\frac{1}{2}).

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v211

Step-by-step explanation:

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Gabriel saves 40% of his monthly paycheck for college. He earned $270 last month. How much money did Gabriel save for college?
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If you have more questions about math... just ask me! 
4 0
3 years ago
Read 2 more answers
Can someone help me with this
Alborosie
✌HEYA!!!
HERE IS YOUR ANSWER=
THERE ARE ONLY TWO CASES WHEN COMPUTER PICKED A 1 AND A 2 OUT OF 25..
CASES= (1,2);(2,1)

P (E)=2/25
O.O8
WHICH IS OPTION D.

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3 years ago
As Sally was shopping for a turkey tree for Thanksgiving, she looked at 48 trees. Of those, she found that 7/8 of them were too
djverab [1.8K]

Answer:

<h2>42 trees</h2>

Step-by-step explanation:

<h3>48/1 x 7/8 = 6/1 x 7/1 (Simplify 48 and 8 because they have the common factor of 8)=42/1= 42</h3>
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3 years ago
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