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IceJOKER [234]
3 years ago
12

2g + h =2g -h= -5find g and h step by step explanation​

Mathematics
1 answer:
wel3 years ago
6 0

Answer:

Step-by-step explanation:

2g + h = 2 --------------(I)

g - h = -5------------(II)

   g = -5 + h

Plugin g = -5 + h in equation (I)

  2(-5 + h) + h = 2              {Distributive property:a(b+c) = a*b +a*c}

(-5)*2 + h *2 + h= 2

-10 + 2h  + h    = 2

             3h = 2 + 10

       3h = 12

         h = 12/3

h = 4

Substitute h= 6 in equation (I)  

2g + 4 = 2

    2g = 2 - 4

    2g = -2

      g = -2/2

g = -1

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You have 3 online accounts in three different banks valued at: bank "A" = $250.67, 12% interest, bank "B" $765.13, 7% interest,
gregori [183]

Answer:

\$882.89

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

Bank A

t=1\ years\\ P=\$250.67\\r=12\%=12/100=0.12

substitute in the formula above

I=250.67(0.12*1)=\$30.08

Bank B

t=1\ years\\ P=\$765.13\\r=7\%=7/100=0.07

substitute in the formula above

I=765.13(0.07*1)=\$53.56

Bank C

t=1\ years\\ P=\$28,500.36\\r=9\%=9/100=0.09

substitute in the formula above

I=28,500.36(0.09*1)=\$2,565.03

Find the average interest gained from the three accounts in one year

[\$30.08+\$53.56+\$2,565.03]/3=\$882.89

3 0
3 years ago
Evaluate the expression below when x = 4 and y = 12.<br> 5х^2 — Зу
Zina [86]

Answer:

44

Step-by-step explanation:

x = 4 and y = 12.

5х² - 3у

20x - 3y

80 - 36

44

8 0
3 years ago
What is 9/12 simplified? Thanks
Pani-rosa [81]
\frac{9:3}{12:3} =  \frac{3}{4}
6 0
3 years ago
Read 2 more answers
Evaluate 7j+5-8k when j=0.5 and k=0.25
dlinn [17]

So first you would substitute j and k in the expression.

7(0.5)+5-8(0.25)

3.5+5-2

It would equal 6.5

Hope this helps!

6 0
3 years ago
Read 2 more answers
The science club went on a two day field trip. The first day the members paid $60 for transportation plus $15 to the planetarium
Dahasolnce [82]

Answer:

First day: $75

Second day: $107

Together: $182

Step-by-step explanation:

First day:

$60 + $15 = $75

Second day:

$95 + $12 = $107

Together: $182

4 0
3 years ago
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