Answer:
The watermelon costs $4.45
Step-by-step explanation:
Hi there!
Let´s define the variables:
x = cost of the watermelon.
y = cost of the napkins.
z = cost of the paper plates.
We know that the sum of the 3 items costs 8.25 without taxes. Then:
x + y + z = 8.25
We also know that he paid 0.19 in total taxes and that the only items taxed at 5% are the napkins (y) and the paper plates (z). Then, 5% of the cost of the napkins plus 5% of the cost of the plates is 0.19:
0.05 y + 0.05 z = 0.19
If we divide both sides of this equation by 0.05, we will obtain:
y + z = 0.19/0.05
y + z = 3.8
Then, let´s replace y + z = 3.8 in the first equation and solve it for x:
x + y + z = 8.25 (y + z = 3.8)
x + 3.8 = 8.25
subtract 3.8 to both sides of the equation:
x = 4.45
The watermelon costs $4.45
Have a nice day!
Answer:
Congruent by HL
Step-by-step explanation:
I know this, im doing it in integrated math
<em><u>Hope this helped! Have a nice day! Plz mark as brainliest!!! :D</u></em>
<em><u>-XxDeathshotxX</u></em>
Let us say that:
x = weight of llamas
y = weight of okapi
From the problem, we can create the equations:
x + y = 450 -->
1
3 x = y + 190 -->
2
Rewriting equation 1:
x = 450 – y
From equation 2:
3 (450 – y) = y + 190
1350 – 3 y = y + 190
4 y = 1160
y = 290
From equation 1:
x = 450 – 290
x = 160
Therefore a llama weighs 160 kilograms while okapi weigh
290 kilograms on average.
Answer:
0
Step-by-step explanation:
Because if an irrational is nonezero is always irrational
