polancodaniella445 polancodaniella445
  • 14-10-2021
  • Mathematics
contestada

can someone explain this to me please

can someone explain this to me please class=

Respuesta :

CrazyBun
CrazyBun CrazyBun
  • 14-10-2021
Answer:

Explanation:

Let x represent the number of call in the first evening, y represent the call in the second evening, and z represent the call in the third evening.

x + y + z = 98 (given)

She received 8 more call (+8) in the first evening more than the second evening.

x = y + 8

She received 4 times (multiply 4) the call in the 3rd evening than the 2nd.

z = 4y

Substitute:

x + y + z = 98
y + 8 + y + 4y = 98
6y + 8 = 98
6y = 98 - 8
6y = 90
y = 15

x = 15 + 8 = 23
y = 15
z = 4(15) = 60
Answer Link

Otras preguntas

Which is the least expensive unit rate: 3 for $1.26 4 for $1.68 5 for $2.25
Which elements of the set of natural numbers are also irrational numbers?
On a six-sided die each side has a number between 1 and 6 what Is the probability of rolling a 3 or 4 ?
Can someone please help me with #23. Which of these sentences do not belong in the paragraph
When was UNO set up?​
If there are significant economies of scale in an industry, then: A. a firm that is large may be able to produce at a lower unit cost than can a small firm. B.
A number that is greater than 0 is called a
A baking scale measures mass to the tenth of a gram, up to 650 grams. Which of the following measurements is possible using this scale?
List of integers between -9 and -4
A solenoid 1.39 m long and 3.20 cm in diameter carries a current of 17.1 A. The magnetic field inside the solenoid is 26.9 mT. Find the length of the wire formi