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3 years ago

Anyone know this mathswatch fraction question ???

Mathematics

2 answers:

Lynna [10]3 years ago

8 0

Answer:

$a)= 5 \frac{9}{14} \\ \\ b) = 7 \frac{1}{2} \\$

Step-by-step explanation:

$a)4 \frac{1}{7} + 1 \frac{1}{2} \\ \frac{29}{7} + \frac{3}{2} \\ \frac{58 + 21}{14} \\ = \frac{79}{14} \\ = 5 \frac{9}{14}$

$b)4 \frac{1}{2} \div \frac{3}{5} \\ \frac{9}{2} \div \frac{3}{5} \\ \frac{9}{2} \times \frac{5}{3} \\ = \frac{45}{6} \\ = 7 \frac{3}{6} \\ = 7 \frac{1}{2}$

Sophie [7]3 years ago

3 0

Answer:

5 9/14

7 1/2

Step-by-step explanation:

a) 4 1/7 + 1 1/2= 4+ 1/7 +1 +1/2 = 5 + 1/7 +1/2 = 5+ 2/14 + 7/14= 5 + 9/14= 5 9/14

b) 4 1/2 ÷ 3/5 = 9/2 ÷ 3/5 = 9/2 *5/3= 3/2*5= 15/2= 7 1/2

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Bethany paid $408.75 for a pair of diamond stud earrings. The sale price was $375. What is the Percent of Sales Tax she paid for

9966 [12]

Answer:

She paid 9% of sales tax

Step-by-step explanation:

The sale price of diamond = $375

Let x be percent of sales tax

So, amount of tax = $x\% \times 375 = \frac{x}{100} \times 375 =3.75x$

So, Amount including tax = 375+3.75x

We are given that Bethany paid $408.75 for a pair of diamond stud earrings.

So, 375+3.75x=408.75

3.75x=408.75-375

$x=\frac{408.75-375}{3.75}$

x=9

Hence She paid 9% of sales tax

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3 years ago

A section of a deck is shaped like a trapezoid. For this section, the length of one base is 35 feet, and the

Sindrei [870]

Answer:

Step-by-step explanation:

a = 35 feet

b = 54 feet

h = 28 feet

$Area=\frac{[a+b]*h}{2}\\\\=\frac{[35+54]*28}{2}\\\\=\frac{89*28}{2}\\\\=89*14\\\\$

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3 years ago

Use properties to find the sum or product <br> 6x89

Natalija [7]

534 is correct tobthe math 9×6=54and 6×8=48 do it vertically

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3 years ago

Read 2 more answers

The weights of cars passing over a bridge have a mean of 3,550 pounds and

Dovator [93]

The approximate probability that the weight of a randomly-selected car passing over the bridge is more than 4,000 pounds is 69%

Option C is the correct answer.

<h3>What is Probability ?</h3>

Probability is defined as the study of likeliness of an event to happen.

It has a range of 0 to 1.

It is given in the question that

The weights of cars passing over a bridge have a mean of 3,550 pounds and standard deviation of 870 pounds.

mean = 3550

standard deviation, = 870

Observed value, X = 4000

Z = (X-mean)/standard deviation = (4000-3550)/870 = 0.517

Probability of weight above 4000 lb

= P(X>4000) = P(z>Z) = P(z> 0.517) = 0.6985

The approximate probability that the weight of a randomly-selected car passing over the bridge is more than 4,000 pounds is 69%

To know more about Probability

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2 years ago

Pedro uses shapes to make a funny animal. Which best tells about the

Pani-rosa [81]

Answer:

The sides of all the shapes are straight

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Pedro animal has the shape of a horse. The animal is made up of different shapes, we can see that the shapes Pedro animal is made up of consist of two triangles, three rectangles and a hexagon.

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3 years ago