Answer:
500 X 7 = 3500, 3500m = 3.5 km
She walked 3.5 km in 1 week.
Answer: B
Step-by-step explanation: I feel like it's b but it is too easy
Answer:
he weights 4.53 kilograms!
Step-by-step explanation:
Answer:
V= 1268.2
Step-by-step explanation:
Answer:
3x-4y=15
7x+y=4
Solve7x+y=4 for y:
7x+y=4
7x+y+−7x=4+−7x (Add -7x to both sides)
y=−7x+4
Step: Substitute −7x+4 for y in 3x−4y=15:
3x−4y=15
3x−4(−7x+4)=15
31x−16=15 (Simplify both sides of the equation)
31x−16+16=15+16 (Add 16 to both sides)
31x=31
(Divide both sides by 31)
x=1
Step: Substitute 1 for x in y=−7x+4:
y=−7x+4
y=(−7)(1)+4
y=−3(Simplify both sides of the equation)
Answer: x=1 and y=−3