Answer:
The solution is the point (-2,-2)
Step-by-step explanation:
we have
----> equation A
----> equation B
Solve the system by substitution
substitute equation A in equation B

Solve for x

Find the value of y
substitute the value of x in the equation A

so

therefore
The solution is the point (-2,-2)
Answer:
K = 5m+y/x
Step-by-step explanation:
Let's solve for k.
y=kx+1m(2−7)
Step 1: Flip the equation.
kx−5m=y
Step 2: Add 5m to both sides.
kx−5m+5m=y+5m
kx=5m+y
Step 3: Divide both sides by x.
kx/x = 5m+y/x
Therefore, k = 5m+y/x
To find how many minutes she took per brain teaser, divide the time by how many she did.
72/6=12
She spent 12 minutes on average for each brain teaser.
Hope this helps.
Answer:
Step-by-step explanatio:no sé
chao.
Step-by-step explanation:
$9100x(1+8%)*5-9100
=$4270.885
=$4271 (cor. to the nearest integer)
The interest is $4271 while the amount is 13371