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Snezhnost [94]
3 years ago
6

What is the solution to the expression -2-3-(-4)?

Mathematics
2 answers:
alexgriva [62]3 years ago
5 0
Answer: -1

-2-3-(-4)
-5-(-4)
-1
Advocard [28]3 years ago
5 0

Answer:

the answer is -1

Step-by-step explanation:

-2 - 3 is -5

-5 - (-4) is -1

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On a certain hot​ summer's day, 645 people used the public swimming pool. The daily prices are $1.75 for children and $2.50 for
VladimirAG [237]

Answer:

327 children and 318 adults

Step-by-step explanation:

The x be the amount of children and y be the amount of adults that were at the swimming pool. We can use this to set up a system of equations:

x+y=645

1.75x+2.50y=1367.25

Move y to the other side in the first equation to isolate x and solve the system using substitution:

x=645-y

  1.75(645-y)+2.50y=1367.25

Distribute

1128.75-1.75y+2.50y=1367.25

         1128.75+0.75y=1367.25

Subtract 1128.75 from both sides

                        0.75y=238.5

Divide both sides by 0.75

                                y=318

x=645-y

x=645-318

x=327

327 children and 318 adults swam at the pool that day

4 0
2 years ago
two times a number plus three times a number equals 13. The sum of two numbers is 7. what are the numbers? write the numbers for
wel

Answer:

4

Step-by-step explanation:

2+ 3 = 5 \\13-5= 8\\8 divided by 2=4 \\x=4

7 0
3 years ago
What is the slope on the graph
ale4655 [162]

Answer:

4/5

Step-by-step explanation:

6 0
3 years ago
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A car dealership has 180 cars on their lot. If they increase their inventory by 25%, how many cars will be on the lot?
4vir4ik [10]

Answer:

There will be 225 cars on the lot.

8 0
2 years ago
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Aiden bought some noteboks and book covers for the upcoming school year.He bought a total of 13 items.Each notebook costs $1.37,
NARA [144]
Answer: Aiden bought 8 notebooks and 5 covers.

This is a system of equations problem. To solve this, we have to write 2 different equations and then solve them.

Our equations are:

x + y = 13
1.37x + 1.08y = 16.36

Where x is the number of notebooks and y is the number of covers.

To solve these equations, you can use anyone of these methods:
1) Graphing
2) Substitution
3) Elimination

The easiest way would be to graph them with a graphing calculator and find the point of intersection.
7 0
3 years ago
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