Its 10. Parenthesis mean to multiply.
Answer: 12 metres
Step-by-step explanation:
The scale factor used for the model is 1 : 30.
This means that for any 1cm on the model, the real boat would be 30 cm.
If the height is 40 cm on the model, the real boat will be 30 times that:
= 40 * 30
= 1,200 cm
A metre is equivalent to 100cm.
1,200 cm would therefore be:
= 1,200/100
= 12 metres
C. -9 is less than -8 so it would be to the left of -8
Answer:
Option A is the correct option
Step-by-step explanation:
Collect like terms
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Move 8 to right hand side and change it's sign
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Add the numbers
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Divide both sides of the equation by 8
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Calculate
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Hope I helped!
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