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Ad libitum [116K]
3 years ago
15

Two equations are given below:

Mathematics
2 answers:
stealth61 [152]3 years ago
8 0

a is given to us so just plug a into the first equation:

b-3 - 3b =9

Add 3 to both sides:

b-3b=12

Combine like terms:

-2b=12

Divide by -2 to get b by itself:

b=-6

The only answer with b as -6 is the first one, (-9,-6)

Anit [1.1K]3 years ago
7 0

The first one, (-9,-6) because if you were to plug it in the answers would equal therefore, the equation is true.

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- 3 ( x + 4 ) = - 24
Slav-nsk [51]

Let's solve your equation step-by-step.

−3(x+4)=−24

Answer:

x=4

7 0
3 years ago
Read 2 more answers
Francesca obtains a loan of $18.965.00. The loan has a simple interest rate of 3%. How much interest will Francesca owe at the e
marin [14]

Answer:

$568.95

Step-by-step explanation:

Given parameters:

Value of loan  = $18965

Interest rate  = 3%

Time  = 1year

Unknown:

Interest = ?

Solution:

The interest on a particular amount is given as:

        I  = \frac{PRT}{100}  

I is the interest

P is the principal

R is the rate

T is the time

       I  = \frac{18965 x 3 x 1}{100}   = $568.95

6 0
3 years ago
Helpppppp<br><br> Find the quotient: -45/5 <br> A. -40<br> B. -9<br> C. 9<br> D. 40
Lunna [17]

Answer:

B - 9

Step-by-step explanation:

5 x 9 = 45 or 45 divided 5

6 0
2 years ago
The sum of two numbers is 27 and the difference is 19. Find the 2 numbers.
zhuklara [117]

Answer:

the sum of two numbers is 27. their difference is 5. find the number

Step-by-step explanation:

Let x be the first number and y be the second number    ...   so we have

x + y  = 27

x - y  =   5            Adding the equations, we have

2x = 32                Dividing through by 2, we have

x = 16                  And substituting  or x in the first equation, we have

16 + y  = 27         Subtract 16 from both sides  

y = 11

4 0
3 years ago
If 20% of X is $6, what is 38% of X?​
galben [10]
20% of x=6
20/100 of x=6
20x= 600
x=30
38% of 30=11.4
5 0
3 years ago
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