Answer:
The answer to your question is x = 36, y = 11
Step-by-step explanation:
Data
there are 2 numbers
their sum is 47
one is larger by 25
x is the larger
y is the smaller
Process
1.- Write two equations that help to solve this problem
x + y = 47 Equation l
x = y + 25 Equation ll
2.- Solve the system of equation by substitution. Substitute Equation ll in equation l
(y + 25) + y = 47
-Solve for y
y + 25 + y = 47
2y = 47 - 25
2y = 22
y = 22/2
y = 11
- Find x, substitute y in equation ll
x = 11 + 25
x = 36
12:(v-6)=16:(v+6)
12(v+6)=16(v-6)
3(v+6)=4(v-6)
3v+18=4v-24
v=42(mph)
56% is unshaded
As 5 rows= 50 squares
And 6 are unshaded in the sixth row
So 50+6=56
So 56/100
So 56%
Hope it helps
Plz rate
And don’t forget to mark as brainliest
Answer:
1979
91%
Step-by-step explanation:
Given the relation :
P = (318t + 6792) / (1.19t + 107.36)
P = % of household with PC
t = years since 2000
1.) We need to find t, when P = 85%
P = 0.85
0.85 = (318t + 6792) / (1.19t + 107.36)
0.85(1.19t + 107.36) = (318t + 6792)
1.0115t + 91.256 = 318t + 6792
Collect like terms :
1.0115t - 318t = 6792 - 91.256
−316.9885t = 6700.744
t = 6700.744 / - 316.9885
t = - 21.138760
t = - 21 years
2000 - 21 years = 1979
Percentage who had computer in 2014
t = 2014 - 2000 = 14
P = (318(14) + 6792) / (1.19(14)+ 107.36)
P = (4452 + 6792) / (16.66 + 107.36)
P = 11244 / 124.02
P = 90.6627
P = approximately 91%
1. y=-3
2. y=-4
3. y=21
4. y=165