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iren2701 [21]
3 years ago
9

Annie is adding the expression 4 + 5 + (–4) and follows the procedure of starting at 4, moving right 5 units, and then moving le

ft 4 units.
Beth says she knows another way to find the sum, using the additive inverse property. What procedure could Beth use?

Mathematics
1 answer:
jekas [21]3 years ago
4 0

Answer:

Step-by-step explanation:

hello

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your 2500 gallon pool has sprung a leak and loses 70% of its water every 10 minutes . how much water will remain in the pool aft
lord [1]

Answer:

equation :water remaining in pool after 30 mins= 0.027X

answer = 67.5 Gallon

Step-by-step explanation:

Given

quantity of water in pool = 2500 gallon

percentage of water lost every 10 mins = 70%

therefore percentage of water remaining in pool = (100- 70)% = 30%

Let the quantity of water in pool be X gallon

% of water remaining in gallon after 10 mins = 30% of X = 0.3X

% of water  remaining in gallon after another 10 mins = 30% of water at 10 mins = 30% of 0.3 X = 0.3 * 0.3X = 0.09 X

% of water  remaining in gallon after another 30 mins = 30% of water present at 20 minutes = 30% of 0.09 X = 0.3 * 0.09X = 0.027X

Therefore equation of water remaining after 30 mins is = 0.027 X

Substituting value of initial quantity of water in the above equation we get the volume pf water remaining in pool after 30 mins = 0.027 * 2500

                                                                                       = 67.5 gallons

4 0
4 years ago
Can someone help me please
ziro4ka [17]

Answer:

9.14 inches (the answer is rounded up).

In case you don't need the rounded up answer : 9.138

Step-by-step explanation:

You forgot to square root x^2 = 83.52

if you square root your answer you'll be able to remove the (2) exponent from x.

8 0
4 years ago
Using the quadratic formula to solve 2x2=4x-7 , what are the values of x?
Firdavs [7]

Answer: no solution

Step-by-step explanation:

2x2=4x-7

4x=4x−7

0=−7

Since 0=−7 is false, the answer is no solution.

8 0
4 years ago
Witch is greater 1/5 or 500 pounds
Travka [436]
I believe it is 500 pounds b cause one out of 5 is less than 500 out of 1000 or 500 pounds
3 0
3 years ago
How tall is the towerr
skad [1K]

Answer:

if you're talking about eifell tower is 984′, 1,063′ to tip

Step-by-step explanation        

3 0
3 years ago
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