There was a formula so all you need to do is look it up (i dont remember it rn) and follow the steps it should be quite easy :)
Answer:
D, A, I cannot read the rest of #3, C, C.
Step-by-step explanation:
Expand
4x - 28 = 0.3x + 0.6 + 2.11
Simplify 0.3x + 0.6 + 2.11 to 0.3x + 2.71
4x - 28 = 0.3x + 2.71
Add 28 to both sides
4x = 0.3x + 2.71 + 28
Simplify 0.3x + 2.71 + 28 to 0.3x + 30.71
4x = 0.3x + 30.71
Subtract 0.3x from both sides
4x - 0.3x = 30.71
Simplify 4x - 0.3x to 3.7x
3.7x = 30.71
Divide both sides by 3.7
x = 30.71/3.7
Simplify 30.71/3.7 to 8.3
<u>x = 8.3</u>
Answer:
9
Step-by-step explanation:
Given data
Ride ticket= $2
Admission= $7
Amount= $25
We want to find the greatest number of rides
let the number of rides be x
The expression to describe how she spends the amount is given as
y=7+2x
for y= 25, let us find x
25= 7+2x
25-7= 2x
18=3x
x= 18/2
x= 9
Hence the number of rides is 9
Answer: 29/28
Step-by-step explanation:
To add fractions we have to calculate the Least Common Denominator of the denominators. Then we have to change each fraction (using equivalent fractions) to make their denominators the same as the Least Common Denominator. Then we can add (or subtract) the fractions.
LCD (4,7,2)= 4·7 = 28
1/4 = 7/28
2/7 = 4·2/28 = 8/28
1/2 = 14/28
Since the fractions have the same denominator we can add them
7/28 + 8/28 + 14/28 = (7+8+14)/28 = 29/28
