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Leviafan [203]
4 years ago
11

Ow many solutions does the system of equations –6a + b = 14 and –12a + 2b = 28 have?

Mathematics
1 answer:
Dmitry [639]4 years ago
3 0
Indefinite amount of solutions.
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joyce traveled at an average speed of 60 miles per hour for 4.5 hours and then traveled at an average speed of 35 miles per hour
SVEN [57.7K]

Answer:

322 1/2 miles

Step-by-step explanation:

Recall how s = d/t ; speed = distance/time.

To effectively solve for distance traveled, rearrange the formula so that distance is on the left-hand side by multiplying speed, and time.

speed × time = distance/time × time

speed × time = distance

distance = speed × time ; d = st.

Now to find the total distance traveled, individually multiply the rate of speed with the time. Time will cancel, and we will get the total mileage.

Given an average speed of 60 mph at a certain time for 4.5 hours, and another average speed of 35 mph at another time of 1.5. Calculate the distance individually, and then add both distances together. Distance 1 = 60 mph × 4.5 h = 60 miles / h × 4.5h = 60 miles × 4.5 = 270 miles.

Distance 2 = 35mph × 1.5h = 35 miles / h × 1.5h = 35 miles × 1.5 = 52 1/2 miles.

Distance 1 + Distance 2 = Total distance.

270 miles + 52 1/2 miles = 322 1/2 miles.

8 0
3 years ago
Please help will mark brainlest!!
nydimaria [60]

Answer:

-22

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What’s the range of ()=−4|−2|−3
Tpy6a [65]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
HELP PLEASE Find the equation of the line<br> The line passes through the points (2, 3) and (-3, -2)
Vladimir79 [104]
Y= x+1



y-3 = (-2-3)/(-3-2) (x-2)
y-3 = 1 (x-2)
y = x-2+3
y=x+1



Mark brainliest please
7 0
3 years ago
Paul currently has $300 to spend on a data plan. He found a phone for $100 and a $50 a month charge.
zvonat [6]
Let x= months
So 50x is the total amount he pays after x months. You went to add 100 to this because there's a fixed cost of 100 for the phone
So you have the expression 100+50x which is the amount he pays after x months
Since he has a limit of 300,
100+50x < 300
3 0
3 years ago
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