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lesantik [10]
3 years ago
13

Solve for distance and solve for time

Mathematics
1 answer:
bazaltina [42]3 years ago
5 0

5. total time taken = 3hrs

    speed = 30km/hr

total distance travelled = 30 * 3= 90km

6. total time taken = 1.5hrs = 1  1/2 hrs

   speed = 70 miles/hr

  distance travelled in 1/2 hrs = 1/2 * 70 = 35 miles

total distance travelled = 3/2 * 70 = 3 * 35 = 105 miles

Rest of the answer jen will help

Hope it helped u,

pls put thanks and mark as the brainliest

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How do you solve st+3t=6
bonufazy [111]
You will factor out the common factor of t if you are solving for t. you will then divide both sides by (s+3) to make t the subject of the formula. for this question you can only get t in terms of s.
so:
st+3t=6
t(s+3)/(s+3)=6/(s+3)
t=6/(s+3)

if you are required to solve for s then you are going to subtract 3t from both sides. you can factorise 6-3t .you will then divide both sides by t to isolate s.for this question you can only get s in terms of t.so:

st+3t-3t=6-3t
st/t=2(3-t)/t
s=2(3-t)/t
4 0
3 years ago
HELP PLEASE 10 POINTS!!!!!! A country's population in 1993 was 171 million. In 1999 it was 176 million. Estimate the population
Lilit [14]

Let 1993 = time 0 = 0.  

Let 1999 = time 6 = 6  

Let 2012 = time 19 = 19  

So, a = 171 (million). First solve for k.  

176 = 171 e^k6  

176/171 = e^(k*6)  

ln (176/171) = 6k  

k = 1/6 ln (176/171)  

So, in 2012 we have: P(19) = 171 e^(19k), where k = 1/6 ln (176/171)


Hope this helped!

3 0
3 years ago
Boxes A and B contain some counters.is
mixer [17]

Answer: y=4

Step-by-step explanation:

8y+1=6y+9 -Because y is equal the equations are as well.

2y+1=9- Take 6y to the other side by -6y

2y=8-Take one over by -1

y=4-Divide 8 by 2 to get y=4

7 0
3 years ago
Read 2 more answers
Solve for y.<br><br> −140=18+4(5y−2)
vagabundo [1.1K]

For this case we have the following equation:

-140 = 18 + 4 (5y-2)

From here, we must clear the value of y.

For this, we follow the following steps:

1) Distributive property:

-140 = 18 + 20y-8

2) Variable terms on one side of the equation and constant terms on the other side of the equation:

20y = -140 - 18 + 8

3) Algebraically add the constant terms:

20y = -150

4) Pass the number 20 to divide:

y = -\frac{150}{20}\\y = -7.5

Answer:

The value of y is given by:

y = -7.5

3 0
3 years ago
Read 2 more answers
What is 74 divided by 5476
Alina [70]
As a fraction, the answer is 1/74 because 74/5476 simplifies to 37/2738 and 37 goes in to 2738 74 times. The decimal answer is 0.0135 recurring (the recurring points are on top of the 1 and the 5)
Hope this helps!
4 0
3 years ago
Read 2 more answers
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