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IgorC [24]
3 years ago
7

PLEASE OH PLEASE HELP ME PLEASEEEEE!!!!

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0
Given from the question
5x - 7y = 58  (first equation)
y = -x + 2 (second equation)

We could use subtitution method to solve the problem.
First, subtitute y with -x + 2 from second equation to first equation, and you'll find the value of x
5x - 7y = 58 
5x - 7(-x + 2) = 58
5x + 7x -14 = 58
12x - 14 = 58
12x = 58 + 14
12x = 72
x = 6

Now, subtitute x with 6 to the second equation
y = -x + 2
y = -6 + 2
y = -4

SUMMARY
x = 6
y = -4
Masja [62]3 years ago
6 0
Do you want me to explain it or just tell you the answer?
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A 26-foot long ladder is leaning against a building at a 60 degree angle with the ground. Which of the following equations can y
Sati [7]

Answer:

22.5 feet (to the nearest tenth).

Step-by-step explanation:

The equations have not been given but still the question can be solved. The ladder lying with a building makes a right angled triangle, in which the ladder is the hypotenuse, the building is the perpendicular, and the ground is the base. The length of the ladder (hypotenuse) is 26 feet and the angle with the ground is 60 degrees. The required length to be found is the length of the building (perpendicular). So the following formula will be used:

sin θ = Perpendicular/Hypotenuse.

Substituting in the equation gives:

sin60 = p/26.

p = 26*sin60.

p = 22.5 (to the nearest tenth).

The approximate height of the building is 22.5 feet!!!

4 0
3 years ago
Read 2 more answers
Mariela recolecto 625 mililitros de agua que gotea de su caño en 10 minutos, ella desea saber ¿cuanta agua gastara en una semana
mario62 [17]

Answer:

En una semana gastará 705,6 litros.

Step-by-step explanation:

Con la información proporcionada, puedes calcular cuánta agua gastará por día usando una regla de tres teniendo en cuenta que un día tiene 24 horas y estas equivalen a 1440 minutos. Además, puedes convertir los 700 ml a litros, considerando que 1 litro son 1000 mL, lo que significa que los 700 mL equivalen a 700/1000=0,7 Litros.

 10 min    →  0,7 L

1440 min →       x

x=(1440*0,7)/10

x=100,8 L

Ahora que conoces la cantidad de agua que gastará por día, puedes multiplicar esta cantidad por 7 que es el número de días en una semana:

100,8*7=705,6 L

De acuerdo a esto, la respuesta es que en una semana gastará 705,6 litros.

4 0
3 years ago
Irene has 1 gallon of milk. She uses 4 fluid ounces of milk in each bowl of cereal. How many bowls of cereal can she fill before
goldenfox [79]
128 ounces in a gallon

128 divided by 4. Gives you 32 bowls of cereal
4 0
3 years ago
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william is thinking of two numbers both numbers are square numbers greater than 1 the sum of numbers is 100 write down two numbe
zheka24 [161]

Answer:

Step-by-step explanation:

At first,

Let start writing the squares of number 0 to 10,

0²=0

1²=1

2²=4

3²=9

4²=16

5²=25

6²=36

7²=49

8²=64

9²=81

10²=100

Now,

According to your question,

  1. The two numbers should be square numbers
  2. They should be greater than 1.
  3. Their sum should be 100.

Hence, your given conditions matches with the numbers 64 and 36.

Therefore, the numbers are 64 and 36.

  • 64 and 36 are greater than 1.
  • 64 is a square of 8 and 36 is the square of 6.
  • 64+36=100
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3 years ago
Find the perimeter and are of each figure below
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The permimiter of a is 18 and the area is 9
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