Step-by-step explanation:
-3/10+ -1/5
find the common denominator. on that case its 10
10 into 10 that's 1 so 3 remain 3 . then 5 into 10 its 2 so 1×2=2
-3/10 + -2/10
-3+-2
-3-2= -5
-5/10= -1/2
Ans is -1/2
-18/15 ×5/-4
you cross multiply. 5into 15 to get a denominator 3 then -4/2=-2 denominator. -18/2=-9. you multiply 3×-2=-6 then we are left with
-9/-6= -3/-2=1 and half
Ans is 1 1/2 (one and 1 half ).
3/8÷ -1/4
you spin -1/4 to -4/1 inorder to change the sign to a multiplication sign.
3/8 × -4/1 1
cross multiply to get -3/2
-3/2 = - 1 1/2
Ans : 1 1/2 ( one and one half )
pliz mark my answer branliest
Answer:
Solve by Substitution :
// Solve equation [2] for the variable y
[2] 5y = 15x - 4
[2] y = 3x - 4/5
// Plug this in for variable y in equation [1]
[1] 15x - 20•(3x-4/5) = 7
[1] -45x = -9
// Solve equation [1] for the variable x
[1] 45x = 9
[1] x = 1/5
// By now we know this much :
x = 1/5
y = 3x-4/5
// Use the x value to solve for y
y = 3(1/5)-4/5 = -1/5
Solution :
{x,y} = {1/5,-1/5}
Answer: neither A or B
Step-by-step explanation:
Answer:
<h2>52 ft.</h2>
Step-by-step explanation:
In this case, we need to calculate a perimeter, which is the sum of all sides of the rectangle.
So, rectangles has opposite sides equal, therefore, the perimeter should be:
; having L as the larger side.
Hence, the strip of wallpaper needs to be as least 52 ft.
Answer:
Volume = 125 mm^3
Step-by-step explanation:
Here, we want to get the volume of the cube
What we have to do here is to substitute the value of the area
We have this as
:
V = 25^(3/2)
V = (√25)^3
V = 5 * 5 * 5 = 125 mm^3
