Answer:
its 20 :)
Step-by-step explanation:
lol
Answer:
Area = 1/2 Base x height
Step-by-step explanation:
To find the area of a triangle, multiply the base of the height and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into two triangles.
The answer is they sold 127 cold sandwiches, 254 hot dogs, and 181 hamburgers.
s - the number of sandwiches
d - the number of hot dogs
h - the number of hamburgers
The price for s number of sandwiches is: $2.50s
The price for d number of hot dogs is: $1.50d
The price for h number of hamburgers is: $2h
The students have collected $1060.50: $2.50s + $1.50d + $2h = $1060.50
<span>The students have sold 562 items: s + d + h = 562
</span><span>The students sold twice as many hot dogs as cold sandwiches: d = 2s
Let's use substitution method.
First, let's substitute d from the third equation into the second equation and solve it for h in the term of s:
</span>s + d + h = 562
d = 2s
s + 2s + h = 562
3s + h = 562
h = 562 - 3s
Further, substitute h and d from the second and the third equations, respectively, into the first equation and solve it for s:
2.50s + 1.50d + 2h = 1060.50
d = 2s
h = 562 - 3s
2.50s + 1.50 * 2s + 2(562 - 3s) = 1060.50
2.50s + 3s + 1124 - 6s = 1060.50
-0.5s + 1124 = 1060.50
1124 - 1060.50 = 0.5s
63.5 = 0.5s
s = 63.5/0.5 = 127
d = 2s = 2 * 127 = 254
h = 562 - 3s = 562 - 3 * 127 = 562 - 381 = 181
The answer is 8,111
Explanation:
25300(0.85) ^7 =
81110.60033…
The second piece would be 28 cm.
You could solve this by subtracting 7 from 63 first. Next you divide it by two one piece is 35 and the other 28.
(Have a nice day :) )