Two cars drive from town A to town B at constant speeds.the blue car travel 35 miles per hour, and the red car travels 70 miles per hour. the blue car leaves at 10:30, and the red car leaves at noon. the distance between the two towns is 140 miles. which linear equations represents the red car and the blue car? a)red car y=70x
blue car y=35x+52.5

b)red car y=35x
blue car y=70x

c)red car y=70x
blue car y=35x

d) red car y=70x+105
blue car y=35x

Answers

Answer 1
Answer: ok so for the red car it should ahave at least y=70x and blue is y=35x at least

cross out answer B

the blue car had a head start so cross out answer that has  no headstart for blue

cross out answers C and D

only one left is A
answer is A (the 52.5 is a result of multiplying 35 by 1.5 hours)





answer is A

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A plane takes off at 6:00 am, traveling north at 270 miles per hour. A jet takes off at 7:00 am, traveling north at 460 miles per hour. At what time will the jet overtake the plane? (Round your answer to the nearest minute.)

Answers

Answer:

The jet will overtake the plane at 8:25 am.

Step-by-step explanation:

The distance D_p traveled by the plane after time t since it took off is modeled by the equation

D_p = 270t

And the distance D_j traveled by the jet after time t since the plane took off is given modeled by the equation

D_j =460t-460    (we set this up such that at t=1,D_j= 0)

Now, the jet will overtake the plane when D_j> D_p:

460t-460> 270t

460t-270t> 460

190t>460

\boxed{t> 2.42\: hours }

Which is 2 hours and 25 minutes after 6:00 am, or at 8: 25 am; therefore, the jet will overtake the plane at 8:25 am.

Answer:

the answer is 8:25

Step-by-step explanation:

Find the equivalent expression for 3+2[2p+4t]

Answers

Answer:

3 + 4p + 8t

Step-by-step explanation:

3+2[2p+4t]

Distribute

3 + 4p + 8t

There are no like terms to combine

What is the value of the 4 in 6.54

Answers

The 4 in that number is in the hundredths section. It means the 4 represents four hundredths
The value of the 4 in 6.54 is four hundreths.

Could someone please answer these questions with simple yet explanatory answers?

Answers

12. To find the area of a triangular prism use the formulas for a prism and for a triangle. To find area of the triangle, do 1/2base*height.1/2(8*6)=24 Now multiply by the length of the prism to find the volume.24*3=72.13. 150/ (7*8) = 2.6814. 1/2x^3

A stereo salesperson earns a salary of $1900 per month, plus a commission of 4% of sales. The salesperson wants to maintain a monthly income of at least $2200. How much must the salesperson sell each month? PLEASE HELP!!! I WILL GIVE 25 POINTS!!!!!

Answers

percent means parts out of 100
4%=4/100=0.4/10=0.04/1=0.04
4% of sale=0.04 times sales
so we have
at least means >
so
earnings>2200
earnings=1900+comission on sales
commision on sales=0.04 times sales
2200<1900+0.04timessales
solve for sales

2200<1900+0.04 times sales
subtract 1900 from both sides
300<0.04 times sales
divide both sides by 0.04
7500<sales

he has to sell at least $7500 per month

How do I reduce a fraction to its lowest term?

Answers

Step-by-step explanation:

Well, to reduce a fraction to lowest terms, divide the numerator and denominator by their Greatest Common Factor. This is also called simplifying the fraction.

To find the Greatest Common Factor, you must:

1. List the prime factors of each number.

2. Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.