Answer:
Step-by-step explanation:
FY
Answer:
try b
Step-by-step explanation:
Answer:
<h2><em>
[2(x+y)-25]cm</em></h2>
Step-by-step explanation:
Let the height of their oldest sister isabella be z centimeters. Roger is x centimeters tall and Olivia is y centimeters tall.
If their oldest sister, Isabella, is 25 centimeters shorter than the double of the sum of Roger and Olivia's height, this can be expressed as shown;
First let us get the sum of Roger and Olivia's height;
The sum of Roger and Olivia's height = (x+y)cm
The double of the sum of their ages = 2* (x+y)cm = 2(x+y)cm
Now if Isabella, is 25 centimeters shorter than the double of the sum of their ages, the expression will be [2(x+y)-25]
<em>Since the height of isabella is z, the expression that model isabella's height will be expressed as z =[2(x+y)-25]cm</em>
Answer:
66 2/3 66 2/3 4 444.44 ft^2
Step-by-step explanation:
the largest area will be a square
200/3 = 66 2/3 feet side length
1. ok, so theres 8 red marbles, 6 blue marbles, and 6 white marbles so that makes
<span>8 + 6 + 6 = 20 marbles in total </span>
<span>the probability of the marble being white is 6/20 or 3/10 </span>
<span>so the probabilty of the marble NOT being white is 1 - (3/10) = 7/10 </span>
<span>and that matches up with choice e) </span>
<span>2. so the ratio of the sides of a triangle is 12:14:15, and the second one is similar. for this one we have to set up a proportion </span>
<span>since the shortest side of the second side is 8 inches, we can match it up with the shortest ratio of the first. and we kno the ratio of the longest side of the first triangle is 15, but we dont kno the the length of the longest side of the second triangle, so we can let that be our unknown, x. so the proportion we are going to set up is </span>
<span>8 / 12 = x / 15 </span>
<span>now cross multiply </span>
<span>12x = 120 </span>
<span>x = 10 </span>
<span>so the length of the longest side of the second triangle is 10 inches </span>
<span>that matches up with choice b)
OR
</span>1. 1 - 6/20 = 1 - 3/10 = 7/10
<span>Answer: (e) 7/10 </span>
<span>---------- </span>
<span>Ideas: Use complement set. </span>
<span>2. x:8 = 15:12 = 5:4 </span>
<span>Answer: (b) 10.0 </span>
