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2 years ago

A/4 - 5/6 = -1/2 whats a help (;

1 answer:

5 0

Answer: a = 4/3

Solution:
a/4 - 5/6 = -1/2
Transform the equation

a x 12/4 - 5 x 12/6 = -12/2
Reduce

3a - 10 = -6
Rearrange the terms

3a = -6 + 10
Calculate

3a = 4
Divide both sides

a = 4/3

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What is the value of x? A. 4 B. 4√3 C. 8 D. 8√3

SashulF [63]

Answer:

B. 4√3

Step-by-step explanation:

$\sin \: 60 \degree = \frac{x}{8} \\ \\ \therefore \: \frac{ \sqrt{3} }{2} = \frac{x}{8} \\ \\ \therefore \: x = \frac{8 \times \sqrt{3} }{2} \\ \\ \therefore \: x = 4 \times \sqrt{3}\\ \\ \huge \purple{ \boxed{ \therefore \: x = 4 \sqrt{3} }}\\$

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3 years ago

Find the product of 8(4square rooy7-square root 18

Serggg [28]

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3 years ago

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A book sold 39,300 copies in its first month of release. Suppose this represents 6.1% of the number of copies sold to date. How

alexdok [17]

Answer:

644,262 copies

Step-by-step explanation:

Since this is a proportion problem, and we are given three values and one variable which is the total number of copies sold to date (x). Then we can use the Rule of Three to solve this problem. To do this we simply multiply the diagonal values and divide by the last value which would give us the value of the variable x

39,300 copies <======> 6.1%

x copies <=======> 100%

(100*39,300) / 6.1 = 644,262 copies

Therefore, a total of 644,262 copies have been sold to date.

4 0

2 years ago

2. Tyler can type 50 words per minute. He needs to finish typing his 500-word

nikdorinn [45]

Answer:

9.5 minute

Step-by-step explanation:

500 - 25 = 50x

x = $\frac{475}{50}$

x = 9.5 minute

6 0

2 years ago

There are 6 gallons in a tank that is 20% full. How many gallons are in a full tank? Use a double number line to show your work.

Alex17521 [72]

Answer: 30 gallons

Step-by-step explanation:

Let the number of gallons that are in a full tank be represented by x.

Since there are 6 gallons in a tank that is 20% full, this will be set up in an equation as:

20% × x = 6

20/100 × x = 6

0.2 × x = 6

0.2x = 6

x = 6/0.2

x = 30

There are 30 gallons in a full tank

3 0

3 years ago