X^2-3x-10. You solve it by foiling. I attached a photo explaining how to do it.
X will equal 7.
4(5x-2)=2(9x+3)
20x-8=18x+6
20x-18x=8+6
2x=14
x=7
Answer:
Step-by-step explanation:
Answer:
100/275=x/37
Step-by-step explanation:
37 heads for 100 guests that means the ratio is 37/100
To calculate how many is needed for 275 guests we should to multiply 275 by 37 and divide it by 100
And the expression for it is 100/275 = x/37