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mihalych1998 [28]
3 years ago
8

(-7.5) + (-5.3) (-1.9)

Mathematics
1 answer:
Lisa [10]3 years ago
6 0

Answer:

2.57

Step-by-step explanation:

You first have to multiply the -5.3 times the -1.9. Once you do that, you get 10.07. Then, you add the -7.5.

Here are the equation steps:

(-7.5) + (-5.3)x(-1.9)

(-7.5) + (10.07)

2.57

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Classify this triangle by its sides.
Leokris [45]
The triangle is equilateral
8 0
3 years ago
Three less than a number b is more than 15.
Korolek [52]

Answer:

b-3>15b>18(18 infinity)

Step-by-step explanation:

4 0
3 years ago
On a certain hot​ summer's day, 643 people used the public swimming pool. The daily prices are $1.50 for children and $2.00 for
lilavasa [31]

249 children and 394 adults swam at the public pool.

Step-by-step explanation:

Number of people swam at pool = 643

Receipts = $1161.50

Cost for one child = $1.50

Cost for one adult = $2.00

Let,

x be the number of children

y be the number of adults

According to given statement;

x+y=643    Eqn 1

1.50x+2.00y = 1161.50   Eqn 2

Multiplying Eqn 1 by 2

2(x+y=643)\\2x+2y=1286\ \ \ Eqn\ 3\\

Subtracting Eqn 2 from Eqn 3

(2x+2y)-(1.50x+2.00y)=1286-1161.50\\2x+2y-1.50x-2.00y=124.50\\0.5x=124.50

Dividing both sides by 0.5

\frac{0.5x}{0.5}=\frac{124.50}{0.5}\\x=249

Putting x=249 in Eqn 1

249+y=643\\y=643-249\\y=394

249 children and 394 adults swam at the public pool.

Keywords: linear equation, subtraction

Learn more about linear equations at:

  • brainly.com/question/5798698
  • brainly.com/question/5758530

#LearnwithBrainly

4 0
3 years ago
Multiply 3x-4y=-2 by three numbers and see if (6,5) is still a solution
garik1379 [7]
Yes it is a solution
3(6)-4(5) = -2
18-20 = -2
-2 = -2
so yes (6,5) is a solution.
6 0
3 years ago
Each peanut butter snack costs $2.Each chocolate snack costs $3.How much does it cost to buy 6 peanut Butter
tankabanditka [31]

Answer:

12

Step-by-step explanation:

6*$2=12

5 0
3 years ago
Read 2 more answers
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