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steposvetlana [31]
3 years ago
8

Complete the explanation about his error. 3 × 8 − 3 ÷ 3 = 24 − 3 ÷ 3 = 21 ÷ 3 = 7

Mathematics
1 answer:
Nata [24]3 years ago
5 0

Answer:

**3 × 8 − 3 ÷ 3 = 24 (correct)

**24 − 3 ÷ 3  = 21 (incorrect)

 24-0=24

**24÷3=8

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Step-by-step explanation:

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Expand the exppresion -7(k-3)
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Answer:

-7k+21

Step-by-step explanation:

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In a recent basketball game between the Storm and the Chargers the number of points scored by the Storm in the first half was eq
Leona [35]
<span> the number of points scored by the Storm in the first half was equal to the number of points scored by the Chargers in the second half of the game
S1 = C2

</span><span>In the first half the Storm scored one-fourth the total points scored in the game
S1 = 1/4 (T</span><span>)

</span><span>During the second half the Chargers scored 16 points less than one-third the points scored in the game. 
C2 = 1/3(T</span><span>) - 16

Solving for
S1
C2
and
T

T is the total points of the game</span><span />
4 0
3 years ago
What is the sum of the expressions (2/3x −7)+(1/3 x+5)?
Anit [1.1K]
The answer is

Final result :

x - 2
Step by step solution :

Step 1 :

1
Simplify —
3
Equation at the end of step 1 :

2 1
((—•x)-7)+((—•x)+5)
3 3
Step 2 :

Rewriting the whole as an Equivalent Fraction :

2.1 Adding a whole to a fraction

Rewrite the whole as a fraction using 3 as the denominator :

5 5 • 3
5 = — = —————
1 3
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

x + 5 • 3 x + 15
————————— = ——————
3 3
Equation at the end of step 2 :

2 (x + 15)
((— • x) - 7) + ————————
3 3
Step 3 :

2
Simplify —
3
Equation at the end of step 3 :

2 (x + 15)
((— • x) - 7) + ————————
3 3
Step 4 :

Rewriting the whole as an Equivalent Fraction :

4.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 3 as the denominator :

7 7 • 3
7 = — = —————
1 3
Adding fractions that have a common denominator :

4.2 Adding up the two equivalent fractions

2x - (7 • 3) 2x - 21
———————————— = ———————
3 3
Equation at the end of step 4 :

(2x - 21) (x + 15)
————————— + ————————
3 3
Step 5 :

Adding fractions which have a common denominator :

5.1 Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(2x-21) + (x+15) 3x - 6
———————————————— = ——————
3 3
Step 6 :

Pulling out like terms :

6.1 Pull out like factors :

3x - 6 = 3 • (x - 2)

Final result :

x - 2

100% Verified!

Hope This Helps! :)
6 0
3 years ago
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