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3 years ago

11

How can I simplify 1/2 + 2/3. Do I add,then divide.

2 answers:

dlinn [17]3 years ago

7 0

Before you add 1/2 and 2/3 you need to find common denominators which is 6. So for 1/2 you need to multiply the numerator and denominator by 3 and for 2/3 you need to multiply the numerator and denominator by 2. 1/2 = 3/6 and 2/3= 4/6; now add 3/6 + 4/6= 7/6.

IRISSAK [1]3 years ago

6 0

You can converte them to a common denominator like 6. 1/2 would be 3/6. 2/3 would be 4/6.

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D: Simplify 2x + 5 + x

NemiM [27]

3x + 5

Just combine like terms. The like terms are 2x and x. You can also write x as 1x. The sign is addition so you at 2x + 1x and get 3x. So now you have 3x + 5,you can’t add 3x + 5 cause they aren’t like terms so that’s your answer. :)

3 0

2 years ago

Read 2 more answers

MULTIPLE CHOICE A triangle has an angle that measures 41° and an angle

m_a_m_a [10]

Answer:

117

Step-by-step explanation:

Sum of all the angles of a triangle is 180

Let the third angle be 'x'

41 + 22 + x = 180

63 + x = 180

x = 180 - 63

x = 117

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2 years ago

Read 2 more answers

a cost of a pen is unknown the cost of the notebook is 30 cents more than the pen mary brought 8 pens and 5 notebooks and spend

Cloud [144]

The answer is 30 cents

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3 years ago

SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!

Oduvanchick [21]

Answer:

My Answer: <u>33.95</u>

Step-by-step explanation:

x - 13.75 = 20.2

so because it is subtracting we have to add.

x - 13.75 + 13.75 = 20.2 + 13.75

when added, x will cancel out, and we will be left with the answer.

x = 33.95

GL!

-Oceaniii

3 0

3 years ago

A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sampl

Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$p=\frac{x}{n}$

$p=\frac{12}{50}$

$p=0.24$

$q=1-p=1-0.24=0.76$

$\frac{\alpha }{2} =\frac{\0.01 }{2}=0.005$

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$0.24-z_{0.005} \sqrt{\frac{0.24*0.76}{50} }$

$0.24-2.58(0.0604)$

$0.24-0.155832$

By rounding to three decimal places we get,

$0.084$

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

3 0

3 years ago