<span>Let's solve your equation step-by-step.<span><span><span>5x</span>+<span><span>12</span><span>(<span><span>4x</span>+8</span>)</span></span></span>=25</span>Step 1: Simplify both sides of the equation.<span><span><span>5x</span>+<span><span>12</span><span>(<span><span>4x</span>+8</span>)</span></span></span>=25</span></span><span>Simplify: (Show steps)</span><span><span><span><span>7x</span>+4</span>=25</span>Step 2: Subtract 4 from both sides.<span><span><span><span>7x</span>+4</span>−4</span>=<span>25−4</span></span><span><span>7x</span>=21</span>Step 3: Divide both sides by 7.<span><span><span>7x</span>7</span>=<span>217</span></span><span>x=3</span><u>Answer:</u><span>x=<span>3</span></span></span>
The $50 off was like a coupon after you brought all your merchandise to the counter, so we have to add it back in to determine the number of shirts.
$400+$50=$450 original price of shirts
Original price ÷ price per shirt= quantity purchased
$450 ÷ $15/shirt= 30 shirts purchased
Allison bought 30 shirts.
Hope this helps! :)
Answer:
1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.
2) between 20 and 25 --> 21-25/2.9 = -1.38
Step-by-step explanation:
Problem #1:
- Using the z-score formula, z = (x-μ)/σ/n, where x is the raw score = 20 mpg,μ is the population mean = 21 mpg , σ is the population standard deviation = 2.9, n = random number of samples.
<h3><u>X < 20</u></h3>
- = z = 20 - 21/2.9/√25
- = z = -1/2.9/5
- = z = -1.72414
<h2><u><em>Now</em></u></h2>
<em>P-value from Z-Table:</em>
<h3><u>P(x<20) = 0.042341</u></h3>
Problem #2:
<h3>21-25/2.9 = -1.38</h3>
Answer:
Step-by-step explanation:x 1/2 p=75 add that by 9
Answer:
2 inches
Step-by-step explanation:
x= smallest
3x=largest
2x=medium
x+3x+2x=12
6x=12
x=2
so smallest is 2
largest is 6 (3x)
medium is 4 (2x)
2+6+4=12
