Look at picture for answer! :)
Sum means add
x and y are the numbers
sum i 44
x+y=44
smaller s 20 les than larger
x=20+y
or
y=20+x
doesn't matter, just pick one
x=20+y
substue 20+y for x since they are equal
x+y=44
(20+y)+y=44
20+y+y=44
20+2y=44
subtract 20 from both sides
2y=24
divide by 2
y=12
subsitue
x=20+y
x=20+12
x=32
the numbers are 12 and 32
Answer:
The probability of picking a red marble first then replacing it and getting a black marble is 2/9. (The last option.)
Step-by-step explanation:
Hey there!
The probability of first getting a red marble is 1/3 since we have 1 red marble out of 2 + 1 = 3 total.
We put the marble back. The probability of then choosing a black marble is 2/3, since we have 2 black marbles out of 3 total.
So we get 1/3 * 2/3 = 2/9
The probability of picking a red marble first then replacing it and getting a black marble is 2/9. (The last option.)
Hope this helps, please mark brainliest if possible. Have a nice day. :)
Answer:
4/15
Step-by-step explanation:
1/3=5/15
2/5=6/15
6+5=11
15-11=4
4/15 books a fiction
Answer: " $ 9.00 " .
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The original price of the each book was: " $ 9.00 " .
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Let "x" = the "original price" (in "dollars").
30% of "x" = (0.30)x = (0.3)x .
"x <span>− (0.3x) = 6.30 ;
" 1x </span><span>− 0.3x = 6.30 " ;
" (0.7)x = 6.3 " ;
Divide each side of the equation by "(0.7)" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
" (0.7)x / (0.7) = 6.3 / (0.7) " ;
to get:
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</span>→ x = 9 (dollars)<span>
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Answer: " $ 9.00 " .
____________________________________________________
The original price of each books was: " $ 9.00 " .
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