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kipiarov [429]
3 years ago
8

Which Expression is equivalent to 4(6 + x + 3x)

Mathematics
1 answer:
Gennadij [26K]3 years ago
7 0

Answer:

=4(6) + 4(X) + 4(3x)

=24+4x+12x

=24+16x

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The mean life of a television set is 119 months with a standard deviation of 13 months. If a sample of 67 televisions is randoml
PIT_PIT [208]

Answer:

Provided in the picture below.

Step-by-step explanation:

Provided in the picture below.

5 0
3 years ago
Blake is showing his work in simplifying (4.6 − 9.2) − 0.8 + 5.4. identify any error in his work or reasoning. step 1: (4.6 − 9.
Kay [80]
In mathematics, when you are presented with multiple operations in one equation, you follow the PEMDAS rule. This rule assigns which operation should be the first priority. The P means parenthesis. So, any expression inside the parenthesis should be calculated first. This is followed by Exponent(E), Multiplication (M), Division (D), Addition (A) and lastly, Subtraction (S). Technically, when all you have left is addition and subtraction, priority doesn't matter because of associative property.

Step 1: Nothing has change. Blake just copied the original equation.
Step 2: Blake changed the placing of the parenthesis. As mentioned earlier, you have to prioritize what's inside the parenthesis first. You can't change the position of the parenthesis. It will matter. Good thing, the answer, in this case, does not matter. But this does not apply to all situations.
Step 3: Blake was correct. He prioritize the <span>(− 9.2 − 0.8) term which is equal to -10.
Step 4: Associative property allows you interchange the order of the operations without changing the final answer. This is applicable to addition and subtraction operations. Hence, this was used correctly.
Step 5: Technically, this was correct because addition is prioritized more than subtraction.

Therefore, Blake's error was in Step 2.</span>
6 0
4 years ago
A group pre-orders 9 tickets for a sightseeing tour, even though they don't have the money to pay for them yet. Each ticket cost
tatyana61 [14]

Your answer is $253 in total debt


8 0
3 years ago
8(2x-3)-6x if 3=x and simplify
Rom4ik [11]
Simplify the expression:

8(2x - 3) - 6x = 8×2x - 8×3 - 6x = 16x - 24 - 6x = 10x - 24

for x=3

put value of "x" to the expression:

<u>10×3 - 24 = 30 - 24 = 6</u>
5 0
3 years ago
Please help me with this​
ArbitrLikvidat [17]

Answer:

C and D are correct in my calculations, I'm confused.. ;w;

Step-by-step explanation:

4x + 9 + 79 - x + y = 180

4x - x + y + 79 + 9 = 180

3x + y + 88 = 180

3x + y = 180 - 88

3x + y = 92

y = 92 - 3x

A.) x = 64, y = 50

y = 92 - 3x

(50) = 92 - 3(64)

50 = 92 - 192

50 ≠ - 100

B.) x = 14, y = 152

y = 92 - 3x

(152) = 92 - 3(14)

152 = 92 - 42

152 ≠ 50

C.) x = 23.3, y = 22.1

y = 92 - 3x

(22.1) = 92 - 3(23.3)

22.1 = 92 - 69.9

22.1 = 22.1

D.) x = 14, y = 50

y = 92 - 3x

(50) = 92 - 3(14)

50 = 92 - 42

50 = 50

8 0
3 years ago
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