Check the picture below.
a) is asking what is the initial height, and that occurs right before the balloon is shot up, at 0 seconds, namely at x = 0.
Create an equation to figure out how much salad was sold that day. S is for the number of salads. D is for the number of drinks.
$6.5s + $2d = $836.5
<span>s + d = 209
</span><span>s = 209 - d
Plug in the values.
</span>6.5 (209 - d) + 2d = 836.5
1358.5 - 6.5d + 2d = 836.5
-4.5d = -522
d = 116
<span>s = 209 - 116
= 93
</span>
Answer: Letter B ✅
Hope that helps! ★ If you have
further questions about this question or need more help, feel free to comment
below or post another question and send the link to me. -UnicornFudge aka Nadia
1. Rewrite the system:
x+12y=68 (i)
x=8y-12 (ii)
2. Let's substitute the equation (ii) into the equation (i):
x+12y=68
(8y-12)+12y=68
3. Then, you have:
8y-12+12y=68
4. When you clear "y", you have:
20y-12=68
20y=68+12
20y=80
y=80/20
y=4
5. You already have the value of "y". Now, you must substitute this value into the equation (ii):
x=8y-12
x=8(4)-12
x=32-12
x=20
6. Therefore, the result is:
x=20
y=4
So b is the correct answer
Answer:
4√2 or 5.66
Step-by-step explanation:
x² + x² = 8²
=> 2x² = 64
=> x² = 32
=> x = √32 = 4√2 or 5.66
