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Answer:
$2650
Step-by-step explanation:
If Jack's earnings are represented by e, then we have ...
10% × e = $256
Multiplying by 10 gives ...
100% × e = $2560
Jack earned $2650 in the summer.
_____
100% = 1
Answer:
x = –1
Step-by-step explanation:
From the question given above, the following data were obtained:
y = √(–2x + 7)
y = 3
x =?
The value of x can be obtained as follow:
y = √(–2x + 7)
3 = √(–2x + 7)
Take the square of both side
3² = –2x + 7
9 = –2x + 7
Collect like terms
9 – 7 = –2x
2 = –2x
Divide both side by –2
x = 2 / –2
x = –1
