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sasho [114]
3 years ago
13

Add. 4 5/8 + 2 1/4 =?

Mathematics
2 answers:
Ivan3 years ago
8 0

Answer:

  6 7/8

Step-by-step explanation:

Take a quick look at those fractions.  The LCD here is 8.  We'll leave 4 5/8 as is, but change 2 1/4 to 2 2/8.

Now we'll add together:

 4 5/8

+ 2 2/8

-----------

  6 7/8

Dmitriy789 [7]3 years ago
6 0

6 \frac{7}{8}.

The easiest way to solve this problem is to sum the whole number and the fractions separately.

4\frac{5}{8} + 2\frac{1}{4}\\\\4\frac{5}{8} + 2 \frac{1}{4}(\frac{2}{2})\\\\4\frac{5}{8} + 2\frac{2}{8}

Solving the sum:

4\frac{5}{8} + 2\frac{2}{8} = 6 \frac{7}{8}

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Answer:

19.84

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Step-by-step explanation:

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3 years ago
Which properties are best used prove a quadrilateral is a rhombus?
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Your subtotal at the store was $58.89. You have a 30% off coupon. If the sales tax rate is 5.5%, what is the total price for you
Mars2501 [29]

Answer:

$43.48

Step-by-step explanation:

58.89x.30=17.68

58.89-17.68=41.21

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4 0
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Read 2 more answers
A researcher wants to test to see if husbands are significantly older than their wives. To do this, he collects the ages of husb
OLga [1]

Complete Question

The complete is shown on the first uploaded image

Answer:

The correct option are option 2 and option 4

Step-by-step explanation:

From the question we are told that

   The sample size is  n = 12  

    The test statistics is  t \approx 1.434

    The level of significance is  \alpha = 0.05

    The  rejection region is    t>1.796

   The null hypothesis H_o: \mu_d=0

    The alternative hypothesis is  H_a : \mu_d >0

 From the given values we see that t <  1.796(i.e   1.434 < 1.796 ) which implies that t is not within the rejection region

  Hence we fail to reject the null hypothesis

The conclusion is that there is insufficient evidence to suggest that that the husbands are significantly older than the wife.

4 0
3 years ago
A snowmobile traveled 32 miles in 2 1/3 hours.
laila [671]

Answer:

13.7 mph

Step-by-step explanation:

• d = st

Given:

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  • t = 2 1/3 hr = 7/3 hr

Find the rate s:

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  • s = 32-7/3 = 32 x 3/7 = 96/7 = 13.7 mph (rounded)
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3 years ago
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