Answer:
Second option is the right choice.
Step-by-step explanation:
SSS.
Answer: 2/3
Explanation: the difference between -14 and -10 is 4 and in fractions x/y. so we have 4/y. the difference between -18 and -12 is 6 so we have 4/6 but we can simplify that to 2/3.
Answer:
85%
Step-by-step explanation:
Generally, you pay 100% of the total cost. However, you get 15% off. This means that all you have to do is 100-15 to get 85.
Answer:
15 boys and 25 girls
Step-by-step explanation:
The sum of boys (b) and girls (g) is given as 40:
g + b = 40
The number of girls is 2 times the number of boys minus 5:
2b - 5 = g
First formula can be rewritten as g = 40 - b
Then you can substitute this for g in the second, and you get:
2b-5 = 40-b
Which simplifies to:
2b + b = 40 + 5
3b = 45
b = 15
g = 40-15 = 25
15 boys, 25 girls.
<span>X/x+2 = 4/5
5x = 4x + 8
5x - 4x = 8
x= 8
</span>
