Answer:
x≤-86
Step-by-step explanation:
Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let them number of girls be y
Then they number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
The number of girls is 11
<span><span><u>Answer</u>
x<69 (Where x represent a real number).
</span><span><u>Explanation</u>
</span><span>An inequality in mathematics is a relationship between two numbers or expressions.
It can be ≥,≤,< or even >.
≥mean greater than or equal to.
≤means less than or equal to
<means less than
>means greater than
Now to answer the question, all real numbers less than 69.
</span>x<69<span> (Where x represent a real number).
</span></span>
