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Sindrei [870]
3 years ago
6

X+y=-3 Y=x+3 Solve each system of equations algebraically

Mathematics
2 answers:
Anna11 [10]3 years ago
6 0
X+X+3=-3 2X+3=-3 2X=6 X=3
vaieri [72.5K]3 years ago
4 0
<span>x+y=-3
y=x+3
===========

x+x+3=-3
2x+3=-3
2x=-3-3
2x=-6
x=-3

</span>y=x+3
y=-3+3
y=0
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Find the solution to the equation.
Mekhanik [1.2K]

Answer:

-7

Step-by-step explanation:

30-16= -5n +3n

14 = -2n

multiplying both by half,u have -

7 = -n

multiply both by -1

7 = n

3 0
2 years ago
Can you answer these questions I need them today 10 points if you do
quester [9]
#1.) A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1.

I don't want to give you the answer cause that will not help you I'm the future If I just give it to you. It might help you but that's what I learned in school is that it doesn't help. Because like if you cheat on a test you won't get to learn. But if you did it yourself and got it wrong you can see why
4 0
3 years ago
If f=ma, what is the value of f when m=5 and a=3?
Feliz [49]
The answer is:  15 .
__________________________                                                _____
{Note:  If this is a physics problem ; and the formula: "F = m*a" is for:  
    "Force = mass * acceleration" ;  be sure that the correct units are used!}.
_______________________________________________________
Explanation:
_______________________________
 F = m * a ;

Given m = 5 ;
        
           a = 3 ;
___________________
 F = 5 * 3 = 15 .
_____________________
3 0
3 years ago
Mr. Sanchez’s class sold fruit pies for $1.55 each and Mr. Kelly’s class sold bottles of fruit juice for $1.40 each. Together, t
Blababa [14]

Answer:

x + y = 60 and 1.55x + 1.4y = 88.20 and the solution is x = 32 and y = 28.

Mr. Sanchez’s class earned more money by $10.4.

Step-by-step explanation:

Mr. Sanchez’s class sold fruit pies for $1.55 each and Mr. Kelly’s class sold bottles of fruit juice for $1.40 each.

Let the number of sold fruit pies is x and bottles of fruit juice is y.

So, from the given condition we can write

x + y = 60 ........ (1)

⇒ 1.4x + 1.4y = 84 ....... (2) and

1.55x + 1.4y = 88.20 ........ (3)

Now, solving equations (2) and (3) we get (1.55 - 1.4)y = (88.2 - 84)

⇒ y = 28

And from equation (1) we get x = 60 - 28 = 32.

Therefore, Mr. Sanchez’s class earned more money. (Answer)

Now, this class have earned $(32 × 1.55 - 28 × 1.4) = $10.4 more. (Answer)

5 0
3 years ago
Read 2 more answers
Which sum is close to 1 0.4+1/2 ,7/8+1/4,4/5+2/3 explain
serg [7]
Presuming the question is "Which sum is closest to 1". 
First, you need to either convert all the fractions to decimals or all the decimals to fractions, then add each pair. 
0.4 + 1/2 = 0.9
7/8 + 1/4 = 1.125
4/5 + 2/3 = 1.466666...
The first one is different from 1 by 0.1. The second is different by 0.125. The third is different by 0.46666.... Therefore, the closest sum is the first, or 0.4 + 1/2

0.4 + 1/2
3 0
2 years ago
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