Answer:
An equation contains an equal sign so -20 is not an equation, I think it's a typing error
Answer:
i think 32
Step-by-step explanation:
128÷12 = 10.6666666666
10.6666666666×3 = 32
Make me brainliest
Answer:
The amount was reduced by 30%
Step-by-step explanation:
To find the percent discount, take the reduction over the original price
99/330
.3
Change the decimal to a percent by multiplying by 100%
.3 * 100%
30%
The amount was reduced by 30%
Answer:
Therefore the height of the tower is 101.79 m.
Step-by-step explanation:
The ratio of the height of an object to the shadow of the object is always constant at certain time.
Given that,the length of the pole is 3.5 m and it casts a shadow that is 1.47 m long.
The length of shadow that castes by a tower is 42.75 m long.
Here h₁= 3.5 m, s₁=1.47 m, h₂= ? and s₂=42.75 m
⇒3.5 ×42.75 = h₂× 1.47
⇒h₂ = 101.79 m (approx)
Therefore the height of the tower is 101.79 m.
Y=-X-3
X+Y=4
You'll want to get X or Y by itself, which in this question it already is.
After that, use substitution (Plug -X-3 in place of Y in X+Y=4)
Equation should look like X+(-X-3)=4
Solve that equation
X+(-X-3)=4
X+(-X) cancels eachother out, leaving you with (-3)=4
Add 3 to both sides of (-3)=4, leaving you with 0=7
0 Can't equal 7, so this equation has no solutions
