To estimate:
99.1 can be approximated by 100-1%
11.2 can be approximated by 11.1+1%
So 99.1*11.2 can be approximated by (100*11.1)-1%+1%=1110
Answer:
B,C,D
Step-by-step explanation:
B= solve your equation step-by-step.
y
1.75
=4
Step 1: Multiply both sides by 1.75.
y
1.75
=4
(
y
1.75
)*(1.75)=(4)*(1.75)
y=7
----------------------------------------------------------
C= solve your equation step-by-step.
5y=35
Step 1: Divide both sides by 5.
= 
Thus y=7
---------------------------------------------------------
D= solve your equation step-by-step.
22+y=29
Step 1: Simplify both sides of the equation.
y+22=29
Step 2: Subtract 22 from both sides.
y+22−22=29−22
y=7
------------------------------------------------------------
Answer:
k = 
Step-by-step explanation:
Given that r varies directly as p then the equation relating them is
r = kp ← k is the constant of variation
To find k use the condition r = 3 when p = 15, then
3 = 15k ( divide both sides by 15 )
= k , that is
k = 
Answer:
The answer to your question is x = 1 y = 1
Step-by-step explanation:
Data
-2x + 6y = 4 Equation l
5x + y = 6 Equation ll
Process
1.- Calculate Δ
Δ = | -2 6 |
| 5 1 | = (-2 x 1) - (5 x 6)
= -2 - 30
= - 32
2.- Calculate Δx
Δx = | 4 6 |
| 6 1 | = (4 x 1) - (6 x 6)
= 4 - 36
= -32
3.- Calculate Δy
Δy = | -2 4 |
| 5 6 | = (-2 x 6) - (5 x 4)
= -12 -20
= -32
4.- Find x and y
x = Δx/Δ = -32/-32 = 1
y = Δy/Δ = -32/-32 = 1
Simple....

x<6
This means that on your graph at 6 it's a circle (not colored in) and it goes to the left indefinitely...
Thus, your answer.