Answer:
4xy exponent 7/2xy exponent 6
Answer:
Discount = $290.76 × 0.2 = $58.15
Cost After Discount = $290.76 - $58.15 = $232.61
Sales Tax = 0.0625 × $232.61 = $14.56
How Much You Pay = $232.61 + $14.56 = $247.17
Step-by-step explanation:
Discount:
290.76 × 0.2* = 58.152
Round that to 58.15
* Turn 20% into a decimal (0.2)
Cost after Discount:
290.76 - 58.15 = 232.61
Sales Tax:
First turn 6.25 % into a decimal. Which would be 0.0625.
0.0625 × 232.61* = 14.556875
Then we round to the nearest hundredth and you get 14.56.
* We us the amount after the discount instead of the original price.
How much you pay:
232.61 + 14.56 = 247.17
Giraffe needs 2 balloons while the poodle requires 1 balloon each.
To solve this, you need to substitute the value of Y into the equation 8X - Y = -12
So, since Y = 4, plug 4 in for Y:
8X - Y = -12
8X - (4) = -12
Now solve for X.
Does that help? Do you have any questions?
Just as a heads up this technique also works for larger equations. If Y = 3X, then you'd just plug 3X in for Y:
8X - Y = -12
8X - (3X) = -12
You got this!
