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strojnjashka [21]
3 years ago
12

Offering 25 pts and a mark for real answers please!!! Flying against the jetstream, a jet travels

Mathematics
1 answer:
almond37 [142]3 years ago
4 0

Answer:

  • plane: 850 mph
  • jet stream: 150 mph

Step-by-step explanation:

The speed of the plane is the average of the two speeds. The speed of the jet stream is half their difference.

against: (5600 mi)/(8 h) = 700 mi/h

with: (4000 mi)/(4 h) = 1000 mi/h

Plane's speed = (700 + 1000)/2 mi/h = 850 mi/h

jetstream speed = (1000 -700)/2 mi/h = 150 mi/h

The rate of the jet in still air is 850 mi/h; the rate of the jetstream is 150 mi/h.

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Selena earned $200 last month babysitting. She used 25 of her earnings to buy a video game. How much did she spend on the video
babymother [125]

Answer:

See below

Step-by-step explanation:

<u>Is that $25 or 35%?</u>

If $25, she spent $25.

If 25%, she spent (0.25)*(200) = $50.

3 0
3 years ago
What’s the solution of 5(2m - 13) =65
earnstyle [38]

Answer:

m=13

Step-by-step explanation:

8 0
3 years ago
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Wels at its next
xenn [34]

This question is not correctly written

Complete Question

The Henderson Hawks minor-league baseball team is giving away baseballs an

game. The balls cost $3 each and the towels cost $2 each. The team wants to give away 200 items and have 500 to spend. How many of each item should the team give away Show your

work or explain your reasoning.

Answer:

They should give away 100 balls and 100 towels

Step-by-step explanation:

Let the number of balls = x

Let the number of towels = y

x + y = 200........ Equation 1

y = 200 - x

$3 × x + $2 × y = $5000

3x + 2y = 5000...... Equation 2

3x + 2(200 - x)= 5000

3x + 400 - 2x = 5000

Collect like terms

3x - 2x = 500 - 400

x = 100

Number of balls to be given away = 100

Note:

y = 200 - x

y = 200 - 100

y = 100

Number of towels to be given away = 100

Therefore, they should give away 100 balls and 100 towels

3 0
3 years ago
Mathematics question help
Nat2105 [25]

Distance Formula: \sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}

Point 1: (9,0)

Point 2: (5,-8)

D = sqrt[ (5 - 9)^2 + (-8 - 0)^2 ]

D = sqrt[ (-4)^2 + (-8)^2 ]

D = sqrt[ 16 + 64]

D = sqrt(80)

Hope this helps!

4 0
3 years ago
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If y= (2x^2+x)^3 +(x-1) /(1-x). find dy dx​
Mrrafil [7]

Answer:

Step-by-step explanation:

y=(2x²+x)³+(x-1)/(1-x)

=(2x²+x)³+(x-1)/-(x-1)

=(2x²+x)³-1

dy/dx=3(2x²+x)(4x+1)-0

=3x(2x+1)(4x+1)

7 0
3 years ago
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