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Daniel [21]
2 years ago
14

A used book store also started selling used CDs and videos. In the first week, the store sold a combin

Mathematics
1 answer:
avanturin [10]2 years ago
3 0

Answer:

300 cds

Step-by-step explanation:

because 60x3=180 and 40 divied by 4 is 10.

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The values in the table represent an exponential function. What is the common ratio of the associated geometric sequence? x: 1,
Alex73 [517]

Answer:

the answer might be b. because if you multiply it by 4 it is 512.

Step-by-step explanation:

8 0
3 years ago
(1.5 x 10^2) X (2.0 x 10^3) Express your answer in scientific notation and standard form.
zavuch27 [327]

Answer:

3*10^5 or 300,000 cant remember witch one it is

Step-by-step explanation:

1.5*10^2= 150

2*10^3=2,000

150*2000=300,000

3*10^5

8 0
3 years ago
4 x equals negative 2x + negative 6
erastovalidia [21]
So x equals two if it is an exponent.9
7 0
3 years ago
Read 2 more answers
16 c = _ pt <br><br> Plz answer
Artyom0805 [142]

Answer:

8 pt

Step-by-step explanation:

3 0
3 years ago
two brothers marco and fernando are training for a marathon marco runs at a rate of 6miles per hor. Fernando funs at at a rate o
satela [25.4K]
We know that
speed=distance/time
solve for time
time=distance/speed

in this problem
<span>Marco runs at a rate of 6 miles per hour. 
</span><span>Fernando funs at a rate of 7.2 miles per hour
Difference=7.2-6=1.2 miles/hour
so
speed=1.2 miles/hour
distance=0.3 miles
time=?
</span>time=distance/speed-----> 0.3/1.2-----> 0.25 hour-----> 0.25*60=15 minutes
<span>
the answer is
0.25 hour (15 minutes)

Alternative Method
Let 
x---------> Fernando's distance when Marco is 0.3 miles apart

</span>Fernando funs at a rate of 7.2 miles per hour
<span>for distance =x
time=x/7.2------> equation 1

</span>Marco runs at a rate of 6 miles per hour. 
for distance=x-0.30
time=(x-0.30)/6------> equation 2

equate equation 1 and equation 2
 7.2*(x-0.3)=6x-----> 7.2x-2.16=6x
7.2x-6x=2.16------> x=2.16/1.2-------> x=1.8 miles

time=x/7.2-----1.8/7.2=0.25 hour
6 0
3 years ago
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