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bekas [8.4K]
3 years ago
7

Use the distributive property to evaluate 4(2x-1) when x=6 .

Mathematics
1 answer:
vichka [17]3 years ago
8 0

Answer:

<h2>44</h2>

Step-by-step explanation:

The distributive property: <em>a(b + c) = ab + ac</em>

4(2x - 1) = (4)(2x) + (4)(-1) = 8x - 4

Put x = 6 to the expression:

8(6) - 4 = 48 - 4 = 44

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If the probability of rain today is 15%, what is the probability that it will not
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2 years ago
When evaluating (6.28x10^12)/(3.14x10^4) what will be the exponent of 10 in the quotient?
alexdok [17]
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4 0
3 years ago
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A chemist needs 130 milliliters of a 47% solution but has only 35% and 87% solutions available. Find how many milliliters of eac
choli [55]

Answer: Amount of 35% solution required = 100 milliliters

Amount of 87% solution required  = 30 milliliters

Step-by-step explanation:

Given: Total solution required =  130 milliliters

Let x = Amount of 35% solution (in milliliters).

Then, Amount of 87% solution required = 130 - x

As per given,

Concentration = 0.35x +0.87(130-x)=0.47(130)

0.35x +113.1-0.87x=61.1\\\\\Rightarrow\ -0.87x+0.35x=61.1-113.1\\\\\Rightarrow\ -0.52 x= -52\\\\\Rightarrow\ x=\dfrac{52}{0.52}=100

Hence, Amount of 35% solution required = 100 milliliters

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3 0
2 years ago
- 2.6.3 Quiz: Similarity Theorems
ra1l [238]

Answer:

D. 6

Step-by-step explanation:

the similarity theorem:

x/9 = 8/12

12x=8 (9)

12x = 72

x = 72/12

x = 6

8 0
2 years ago
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