Answer:
1) x=10
2) x=6
3) x=13
Step-by-step explanation:
1) 15x-17+4x+7=180
19x-10=180
19x=190
x=10
2) 13x+5=16x-13
5+13=16x-13x
18=3x
x=6
3) 9x+7=11x-19
7+19=11x-9x
26=2x
x=13
Answer is Mary because
8/8 is a whole
4/8 is a half
3/8 is less than 1/2
Addition/Subtraction and. Multiplication/ Division ... So checking one operation with its opposite is a good way to help verify your answer.
The answer is $1.50<span>. Internet </span>cost<span> and the number of days vary directly, the </span>equation<span> is of the form y = kx, where k is the </span>constant<span> of proportionality. y = (1.50)x; Therefore, 1.50 is the </span>constant<span> of proportionality</span>
1. Do a proportion
25.83/x times 52.5/100
2. Do 25.83 times 100 which equals 2,583
3. Do 2,583 divided by 52.5 which equals 49.2
4. Your answer is 49.2