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Pani-rosa [81]
3 years ago
13

HELPPPP. EXPLAIN IT IN 2 SENTENCES

Mathematics
2 answers:
schepotkina [342]3 years ago
6 0
B for 8 would be 6.2 
b for 9 would be 7
The b is adding 0.8 each time
Hope this helps!
alexdok [17]3 years ago
6 0
The pattern is that the b keeps increasing by .8 as the a increases by a. To finish the graph 8a is 6.2 and 9a is 7.
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Of the 21 children at a park, 5 of them are playing on the swings. What is the approximate
Bond [772]

The Answer Is B

Use proportions to find x% of the children playing on the swings.

\frac{21}{100}  =  \frac{5}{x\%}

x  = 23.80952380\%

Meaning B is correct.

3 0
2 years ago
A plane traveled 2565 miles with the wind in 4.5 hours and 2205 miles against the wind in the same amount of time. Find the spee
kherson [118]

Answer:

  • plane: 530 mi/h
  • wind: 40 mi/h

Step-by-step explanation:

Let p and w represent the speeds of the plane and the wind. The relation between time, speed, and distance is ...

  speed = distance/time

  p +w = (2565 mi)/(4.5 h) = 570 mi/h

  p -w = (2205 mi)/(4.5 h) = 490 mi/h

Adding these speeds, we get ...

  (p +w) +(p -w) = (570) +(490) mi/h

  2p = 1060 mi/h

  p = 530 mi/h

Then the speed of the wind is ...

  w = 570 mi/h -p = (570 -530) mi/h = 40 mi/h

The plane's speed is 530 mi/h; the wind speed is 40 mi/h.

7 0
2 years ago
Evaluate this expression for a = 3 and b = 4.
ahrayia [7]

Answer:

14

Step-by-step explanation:

a = 3

b = 4

b(a + 4)-3(3 + 2)+3 - 2\\a = 3,b=4\\4(3+4)-3(5)+3 - 2\\4(7)-15+3 - 2\\28-14\\\\14

8 0
3 years ago
4a^2-9(x+y)^2 factories this step by step pls. Anyone !! Help me pls!!​
xxTIMURxx [149]
  • Answer:

<em>(2a - 3x - 3y)(2a + 3x + 3y)</em>

  • Step-by-step explanation:

<em>Hi there !</em>

use formula

<em>a</em><em>² - </em><em>b</em><em>² = (a - b)(a + b)</em>

<em>a</em><em> = 2a</em>

<em>b</em><em> = 3(x + y)</em>

<em />

<em>4a² - 9(x+y)² =</em>

<em>= [2a - 3(x + y)][2a + 3(x + y)]</em>

<em>= (2a - 3x - 3y)(2a + 3x + 3y)</em>

<em />

<em>Good luck !</em>

5 0
3 years ago
Fruit:sugar in 2:3. if 15kg of sugar is used how much fruit
mars1129 [50]
22.5 kg of fruit is used
7 0
3 years ago
Read 2 more answers
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