Answer:
See below ~
Step-by-step explanation:
We need to represent the situations as inequalities.
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<u>Students can work </u><u>no more than</u><u> 23 hours per week</u>
⇒ Let the hours per week be x
⇒ 'no more than' refers to less than or equal to (≤)
⇒ x ≤ 23
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<u>Tutors are required to spend </u><u>at least</u><u> 2 hours per week</u>
⇒ At least refers to greater than or equal to (≥)
⇒ x ≥ 2
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<u>Tutors should spend </u><u>no more than</u><u> 7 hours per week</u>
⇒ As mentioned before, no more than refers to less than or equal to (≤)
⇒ x ≤ 7
Answer:
b = x/2 - v
Step-by-step explanation:
2(b+v) = x
b + v = x/2
b = x/2 - v
Answer:
-7
Step-by-step explanation:
*Two negatives will cancel out and turn into addition.
-12 - (-5)
Subtract 12 from 5 and add the negative sign:
-12 + 5 =
-7
The answer would be -7
Hope this helped.
5<span>×</span>10^-7 = 0.0000005
When 10 is to a negative power, you move the decimal to the left because the number is less than positive 1. Here 10 is to the power of -7, so you move the decimal (which is after/behind 5) to the left 7 times.
