Answer:
x = 
Step-by-step explanation:
Given
= 
( cross- multiply )
25 × 2x = 5 × 4
50x = 20 ( divide both sides by 50 )
x = 
=
Sugar: x pounds
flour: 2x + 5 pounds
2x + 3(2x + 5) = 40
2x + 6x + 15 = 40
8x = 25
x = 3.125
-> a sack of flour is 3.125 + 5 = 8.125 pounds
I hope it‘s coorect
Answer:
40.8 lbs
Step-by-step explanation:
First find how many 100 pounds are in the 340 lbs shark.
340/100=3.4
The sharks are fed 12 lbs of fish for every 100 pounds of shark.
There are 3.4 hundred pounds in this shark.
3.4*12=40.8; 40.8 lbs
Area of the triangle = (1/2)*base* height = (1/2)*3*6 = 9 sm²
We have 4 triangles like this one ,
so area of 4 triangles = 9*4 = 36 cm².
Area of the square = 3*3 = 9 cm²
Surface area here means area all triangles + area of the square =36 +9 =
= 45 cm ²
Answer is 45 cm².
