Answer:
(0,3)
Step-by-step explanation:
7x-2y=-6
8x+y=3
Multiply the second equation by 2 so we can eliminate y
2(8x+2y) = 2*3
16x+2y=6
Add the first equation to the modified second equation
7x-2y=-6
16x+2y=6
--------------------
23x = 0
Divide by 23
23x/23 = 0/23
x =0
Now we need to find y
8x+y = 3
0+y =3
y=3
(0,3)
J=justin
marcella=m
aimee=a
j is 2 older than 1/3 of m
'of' means multiply
j=2+1/3m
a is 4 younger than 2 times j
a=-4+2j
represent justin's age?
dunno
ok so I can solve if I know m=63
j=2+1/3m
j=2+1/3(63)
j=2+21
j=23
subsitute
a=-4+2j
a=-4+2(23)
a=-4+46
a=42
justin is 23 and aimee is 42 if marcella is 63
Answer: the height of the tree is 27 feet
Step-by-step explanation: We can set up a proportion comparing the height of each object to the length of the shadow.
h
s
h
15
=
18
10
Cross multiply
10
⋅
h
=
18
⋅
15
10
h
=
270
Use the multiplicative Inverse
10
h
10
=
270
10
h
=
27
Answer:
Step-by-step explanation: