Answer:
Here's a story: I had 5 dollars in my piggy bank. My mother gave me 7 more dollars for cleaning my room. I now have 12 dollars. (:
Step-by-step explanation:
y = 4x - 1
b) 2x + y = 8
4x + 3y = 16
c) -3x + 2y = 19
4x + 5y = 13
d) -3x + 7y = 9
4x - 3y = 7
e) -4x + 5y = -7
x = 23 - 3y
f) y = -x
y = -2/5x - 1/5
Good evening ,
Look at the photo below for the answer.
:)
Answer:
a) x = 1 , y = 3
Step-by-step explanation:
a) 7x + 3y = 16
y = 4x - 1
or
3y + 7x = 16 ... (i)
y - 4x = -1 ... (ii)
Solving the simultaneous equation by substitution;
Equation (ii) tells us that y = 4x - 1
Substituting that in (i) gives;
3(4x - 1) + 7x = 16
12x - 3 + 7x = 16
19x = 16 + 3 = 19
x = = 1
y = 4(1) - 1 = 3
Answer:
C
Step-by-step explanation:
What you do is based off the formula. a=1/2(24+18)5=105. C is your answer.
Answer:
area = b1+b2/2 *h
let b1 +24
let b2 = 18
H =5
24+18/2 *5
Area = 105
Step-by-step explanation: