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Liula [17]
4 years ago
11

Help me with this problem please #23

Mathematics
2 answers:
My name is Ann [436]4 years ago
7 0
It takes 6 minutes for the printer to print 21 photos
Georgia [21]4 years ago
4 0
19).   24 laps in 6 mins. = 4 laps/1 min
          72 laps in 18 mins.  = 4 laps/min
            Answer is YES rates are equivalent.


20).    126 points every 3 games
           210 points every 5 games
            YES   rates are equivalent
 this is a fraction equal to 126   3 games/ 210   5 games = 0.6  3 games per 5 game.



21). 15 breaths every 36 seconds = 5/12
        90 breaths every 3 minutes  = 30/1 min
         Answer is NOT Equivalent
= 0.17     36 seconds per   3  minute


22).$16 for 4 pounds = There are 16 ounces in 1 pound.
         $1 for 4 ounces
         Yes the rates are equivalent
16  3 games/ 1   5 games
 16  3 games per 5 game


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statuscvo [17]

x = - 6 and x = 7

given x² - x - 42 = 0 ← quadratic in standard form

(x - 7 )(x + 6) = 0 ← in factored form

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

x + 6 = 0 ⇒ x = - 6


4 0
3 years ago
PLS HELP I WILL GIVE BRIANLY<br><br>1 1/3 × 5 3/4=​
Leya [2.2K]

Answer:18.3

Step-by-step explanation:

5 0
3 years ago
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Drag a reason to each box to complete the proof.
Anna [14]

To start off with, DF=EG's reason is given, since you stated it was given.


Next, DE+EF = EF+FG's reason is because of the substitution property of equality. Think "if a = c, b = c, then a = b"


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6 0
3 years ago
Thelma spent 1/6 of her weekly allowance on dog toys.  1/4 on a dog collar and 1/3 on dog food.  What fraction of her weekly all
Paladinen [302]
To figure out you would first find a common factor with would be 12. After that 1/4 would be 3/12, 1/3 would be 4/12 and 1/6 would be 2/12. Next you just add all the numbers and get 9/12 then the remainder is you answer which comes to be 3/12 or 1/4. Hope that helps:)
3 0
3 years ago
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Sara bought 4 pounds
Roman55 [17]

Answer:

$12.80

Step-by-step explanation:

Sara bought 4 pounds of coffee.

Each pound (lb) costs $3.20

To find the total cost, multiply the cost per pound ($3.20) with the amount of pounds Sara is going to buy (4):

4 x 3.20 = $12.80

$12.80 would be the total cost before tax.

~

3 0
4 years ago
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