<span>A. Kate buys a sled that costs more than $200. She pays $145 in cash and uses her credit card for the rest. Find z, the possible amt Kate charges to her credit card.</span>
Step-by-step explanation:
- 2x-2y=-6
3x+4y=8
multiply equation (1) by 3 and equation (2) by 2
- 6x-6y=18
6x+8y=16
Add
2y=34
y= 34÷2
y=17
substitute 17 for y in equation (2)
3x+4y=8
3x+4(17)=8
3x+68=8
3x=8-68
3x=-60
x=-60÷3
x=-20
x=-20,y=17
If you would like to know what percent of the cost of a new bicycle has Artie saved, you can calculate this using the following steps:
x% of $450 is $300
x% * 450 = 300
x/100 * 450 = 300 /*100/450
x = 300 * 100 / 450
x = 66.67%
The correct result would be 66.67%.
<span>If you would like to know what should Claire's proportion look like, you can calculate this using the following steps:
</span>
x/100 * 450 = 300 /*100
x * 450 = 300 * 100
The correct result would be A) 300 * 100 = x * 450.
Answer:
Initially, Anglea has $6*w in total.
Then she buys N books, at $17 each, then the total cost of the books is: N*$17
After that, she had left $w.
a) This means that:
$6*w - N*$17 = $w
Now we can isolate the variable N in one side of the equation:
N*$17 = $6*w - $w = $5*w
N = ($5/$17)*w
N = (5/17)*w
That is the equation that tells the number of books Angela bought in terms of w.
b) Now we just need to replace the w by 34 in the above equation:
N = (5/17)*34 = 10
If w = 34, Angela bought 10 books.
Answer : y intercept , b is -6
