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Vladimir79 [104]
3 years ago
15

The gcf of 90 and 75

Mathematics
2 answers:
aev [14]3 years ago
7 0

Answer:

\sf \color{blue}The Answer \:  \: is  5 Mark as brainliest

eimsori [14]3 years ago
3 0

Answer:

15

Step-by-step explanation:

90=2*(3^2)*5

75=(5^2)*3

gcf = 3 * 5 = 15

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Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The
ExtremeBDS [4]

Answer:

  • 800 kph
  • 600 kph

Step-by-step explanation:

<u>Equation</u>

Let s represent the speed of the faster plane. Then its travel time is ...

  time = distance/speed = 3600/s

travel time for the slower plane is ...

  time = distance/speed = 3600/(s -200)

The difference in these times is 1.5 hours, so we have ...

  3600/(s -200) -3600/s = 1.5

<u>Solution</u>

Multiplying by (2/3)s(s -200), we get ...

  2400(s) -2400(s -200) = s(s -200)

  s^2 -200s -480000 = 0 . . . . . . . . . . rewrite in standard form

  (s -800)(s +600) = 0 . . . . . . . . . . . . . factor

The positive value of s that makes a factor zero is s = 800.

<u>Conclusion</u>

The speed of the faster plane was 800 km/h; of the slower plane, 600 km/h.

_____

<em>Check</em>

The travel time for the faster plane was 3600/800 = 4.5 hours. For the slower plane, 3600/600 = 6 hours, a difference of 1.5 hours.

6 0
3 years ago
(5 + 2)to the second power - 40 + 3
natulia [17]
12 hope this helped          
8 0
3 years ago
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Can you guys help me again lol-
BartSMP [9]

Answer:

$93 per hour ?

125-405 = 280

280÷3= 93 per hour

4 0
3 years ago
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At the start of the year a summer holiday to Spain cost £650. It increased by 11% in
olga nikolaevna [1]

Answer:

Final cost = £779

Step-by-step explanation:

It is given that:

Cost of summer holiday =  £650

Amount increased by 11%

Increased cost = 11% of 650

Increased cost = \frac{11}{100}*650

Increased cost = 0.11 * 650 =  £71.50

Amount after increment = 650 + 71.50 = £721.50

Further increase = 8%

Amount = 0.08 * 721.50 = £57.72

Final cost = 721.50 + 57.72 =  £779.22

Thus,

Final cost = £779

5 0
3 years ago
Which of the following is a true statement about the rhombus shown?
Airida [17]

Answer:-

B

I hope it helps.

8 0
3 years ago
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