kailee550 kailee550

10-12-2019
Mathematics

contestada

7 less than the square of a number

Respuesta :

saqqara10 saqqara10

10-12-2019

The equation would be set up as 7-x or whatever the variable is

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mikekhar mikekhar

10-12-2019

Answer:

6. Sister #1 = T+7, Sister #2=T-3

(T+7)(T-3)=24

T2-3T+7T-21=24

T2+4T-45=0

(T+9)(T-5)=0

T=-9, T=5.

Tamara can't be -9 years old so she is 5.

Step-by-step explanation:

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