Answer:
x = 7.5
Step-by-step explanation:
The ratios can be written as a fraction. The word "and" can be replaced with the = sign. Now create a proportion.

Cross multiply
6x = 9(5)
6x = 45
Divide by 6 on both sides
6x/6 = 45/6
x = 7.5
Answer:
1 C
2 A
3 D
4 B
Step-by-step explanation:
$2.50+$2.80=The first box $2.68x48)=The second box the answers for both you find on the calculator
7.5x - 100 > 79.86 + 5.8x
7.5x - 5.8x > 79.86 + 100
1.7x > 179.86
x > 179.86 / 1.7
x > 105.8
Answer:
4
Step-by-step explanation:
Given that 


Now,


This can be written as
[as
]

[ by using equation (i)]
=4
Hence, 