Answer:
2400 km
Step-by-step explanation:
distance=rate*time
d=rt
d=(800)(t+1)
d=(1200)(t)
the right sides are both equal to d so set them equal to each other
800(t+1)=1200(t)
800t+800=1200t
800=1200t-800t
800=400t
t=800/400
t=2 hours
d=1200*2
d=2400 km
Answer:
10.) y = -5x + 7
12.) y = 3/2x - 8
Step-by-step explanation: Since you have to create a new line that us parallel, the slopes will be equivalent. So the mx value will not change. Now we can plug in the coordinates to find the value of b.
10.)
2 = -5(1) + b.
2 = -5 +b
b = 7
therefore...
y = -5x + 7
12.)
2(-5) = 3(2) + b
-10 = 6 + b
b = -16
therefore...
2y = 3x - 16
simplified:
y = 3/2x - 8
Answer:
4410 cards, 9 albums
Step-by-step explanation:
Number of cards in a box = 315
Number of boxes = 14
b) Total number of cards = Number of boxes × Number of cards in 1 box
=
a) Carmella estimated she had 3,000 cards so she bought a 6 album of 500 cards.
No, 6 albums are not enough as she estimated wrong number of cards. There are total of 4410 cards but she estimated it to be 3000 cards.
c) Total number of albums required = 
Thus, she will require 9 albums to put all her cards.
Answer:
12 pieces of sausage can be cut from the 8 inch sausage if each piece is 2/3 of an inch.
Step-by-step explanation:
2/3 = 0.66
8 x 0.66 = 12.12
Round down to 12.
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Answer:
72.8 gal (to the nearest tenth)
Step-by-step explanation:
Divide 33.5 by 78.25 to find how much gas is needed for 1 mile, then multiply this by 170:
(33.5 ÷ 78.25) x 170 = 72.77955272.. = 72.8 gal (to the nearest tenth)
