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1 year ago

Helppppppppppppppppppppppppppppppp

Mathematics

1 answer:

Gemiola [76]1 year ago

5 0

Answer:

C. $240

Step-by-step explanation:

30% as a decimal is 0.3

multiply the percent (aka 0.3) by the paycheck (800)

0.3 * 800 = 240

your answer is $240

hope this helps:)

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AFLATI 2 NUMERE STIIND CA AL DOILEA NUMAR ESTE DE 7 ORI MAI MARE DECITPRIMUL IAR SUMA DINTRE DUBLUL PRIMULUI NUMAR SI TRIPLUL CE

postnew [5]

Answer:

The numbers are 20 and 140

Step-by-step explanation:

The question in English is

Find 2 numbers knowing that the second number is 7 times greater than the first, and the sum between the double of the first number and the triple of the second is 460

Define the variables

Let

x ----> the first number

y ----> the second number

we know that

$y=7x$ -----> equation A

$2x+3y=460$ ----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B

$2x+3(7x)=460$

solve for x

$2x+21x=460$

$23x=460$

$x=20$

Find the value of y

$y=7x$ ----> $y=7(20)=140$

The numbers are 20 and 140

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3 years ago

Ravi lost 80 dollars from his pocket. Write a signed number to represent this change.

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Answer:

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