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harina [27]
3 years ago
10

The sum of three consecutive odd integers is 17 less than four time the smallest integers

Mathematics
1 answer:
Stels [109]3 years ago
6 0

x,\ x+2,\ x+4-\text{three consecutive odd integers}\\\\\text{The equation}\\\\x+(x+2)+(x+4)=4x-17\\\\3x+6=4x-17\ \ \ \ |-6\\\\3x=4x-23\ \ \ \ |-4x\\\\-x=-23\to x=23\\\\x+2=25\\x+4=27\\\\Answer:\ \{23,\ 25,\ 27\}

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There are 999 students in a class: 555 boys and 444 girls. If the teacher picks a group of 444 at random, what is the probabilit
PolarNik [594]

Answer:

0.00397

Step-by-step explanation:

I am taking a guess. Like I saw this example (5/9)(4/8)(3/7)(2/6)=120/3024=0.0397

Or (5C4)/(9C4)=0.0397 - from chisnau

Follow those steps, but add your numbers . I added one zero bassed on the problem: There are 9 students in a class: 5 boys and 4 girls. If the teacher picks a group of 4 at random, what is the probability that everyone in the group is a boy?

Hope I helped in some way!

6 0
3 years ago
A balloon is hovering 800 ft above a lake. The balloon is observed by the crew of a boat as they look upwards at an angle of 20
stich3 [128]

Answer:

Step-by-step explanation:

given that a balloon is hovering 800 ft above a lake. The balloon is observed by the crew of a boat as they look upwards at an angle of 20 degrees. Twenty-five seconds later, the crew has to look at an angle of 65 degrees to see the balloon

The distance of the boat from the balloon measured horizontally in the I position = 800 tan 20

After 25 seconds distance of the boat from the balloon measured horizontally in the II position

= 800 tan 65

Distance moved by the boat in 25 seconds

= 800(tan 65-tan 20)\\= 1342.56

Speed of the boat per second = \frac{1342.56}{25} \\=53.702

53.702 feet per second is the speed of boat

5 0
3 years ago
Luke mowed a lawn today to earn some extra money. He spent $2.10 on fuel and $4.45 on lunch. He charged $13.50 to mow the lawn.
liberstina [14]
If you add his expenses, $2.10 + $4.45 you’ll get that Luke spent $6.55 today.

Then subtract his expenses by how much he made for mowing the lawn, $13.50 - $6.55 =


Your answer is A. $6.95
8 0
4 years ago
Read 2 more answers
Someone can help me ?
sergiy2304 [10]

Answer:

\frac{39}{2}  \div 13 \\  \frac{39}{2}  \times  \frac{1}{13}  \\  \frac{3}{2}

5 0
3 years ago
7h^9 c^6 / 21^9 c^4 dis hard
almond37 [142]

Step-by-step explanation:

1) Evaluate the exponent

\frac{7h^{9} }{c^{6} }×c^{4}

\frac{7h^{2} c^{6} }{794280046581}×c^{4}

2) Cancel terms that are in both the numerator and denominator

\frac{7h^{9}c^{6}  }{794280046581}×c^{4}

\frac{h^{9}c^{6}  }{113468578083}×c^{4}

3) Combine multiplied terms into a single fraction

\frac{h^{9}c^{6}  }{113468578083}×c^{4}

\frac{h^{9}c^{6}c^{4}   }{113468578083}

4) Combine exponents

\frac{h^{9} c^{6} c^{4} }{113468578083}

\frac{h^{9} c^{6}c^{4}  }{113468578083}

Result ║\frac{h^{9} c^{6}c^{4}  }{113468578083}

6 0
3 years ago
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