MATHEMATICS MIDDLE SCHOOL

Which is the best equation to use to solve this problem? The perimeter of a rectangle is 90 ft. The ratio of the length to the width is 8: 7. What are the dimensions of the rectangle? A. 8x+7x=90 
B.8x+8x+7x+7x=90      
C.8x/7x=90 
D.2x+2x=90

Answers

Answer 1
Answer: B.8x + 8x + 7x + 7x = 90

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A plumber has a copper pipe 0.9 meter long. He cuts the pipe into 4 equal pieces. Find the length of each piece of meters. Rounds your answer to the nearest tenth of a meter.
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A ceramic artist can shape a pot in 3 minutes. It takes 10 minutes to fire one batch of pots in the kiln. If there are p pots in a batch, which expression represents the time it takes to shape and fire one batch of pots? How long will it take the potter to form and fire a batch of 10 pots?The expression is 3p. It takes 30 minutes to shape and fire 10 pots. The expression is 3p − 10. It takes 20 minutes to shape and fire 10 pots. The expression is 3(p + 10). It takes 60 minutes to shape and fire 10 pots. The expression is 3p + 10. It takes 40 minutes to shape and fire 10 pots.
The difference between a number b and 7.4 is -6.8

Solve each equation and show work -v+3v=14

-7=-4-v+3

12=-3k-7

B+4-8=2

Answers

Answer:

hopefully can help you..

Which one is bigger 2/3 or 4/7

Answers

Answer:

(2)/(3)

Step-by-step explanation:

To compare the fractions we require them to have a common denominator.

The lowest common multiple of 3 and 7 is 21

Change both fractions into fractions with a denominator of 21

(2(7))/(3(7)) and (4(3))/(7(3))

= (14)/(21) and (12)/(21)

The numerator 14 is greater than 12, hence

(2)/(3) is the larger fraction

Answer:

2/3

Step-by-step explanation:

To find whether a fraction is bigger than the other, we need to make the denominators the same.

First we see what number we can change 3 and 7 into, so it can be made the same.

I chose the number 21 as 21 is in the 3 times tables and the 7 times tables.

Then because I multiplied 3 by 7 to make 21 , I multiply the numerator which is 2 by 7 as well which is 14.

This makes 14/21.

We need to multiply the numerator of the other fraction to because we multiplied the denominator by 3 so we do 4 multiplied by 3, to make 12.

This makes 12/21.

We can see here that 14/21 is greater than 12/21, therefore 2/3 is greater than 4/7.

Your welcome!

Find the sum of 130 cm. And 50 mm.in meters

Answers

The sum of 130 cm and 50 mm. in meters is 1.35 m.

What is the unitary method?

The unitarymethod is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. The unitary method is a method by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit.

We are given the sum of 130 cm and 50 mm. in meters

130 cm = 130 / 100

= 1,3m

50 mm = 50 / 1000

= 0,05m

Therefore, the addition is;

1.3 + 0.05m = 1.35m

Learn more about the unitary method, please visit the link given below;

brainly.com/question/23423168

#SPJ2
130 cm = 130 / 100 = 1,3m
50 mm = 50 / 1000 = 0,05m
1,3 + 0,05m = 1,35m

Please help!The formula d= sqrt 1.5h gives the distance (d) in miles you can see to the horizon from a height of h feet above the earth. To the nearest mile, how many miles can you see to the horizon from the top of the Empire State Building at 1250 feet?

Answers

Answer:

d (miles) = (sqrt 1.5) * height (feet)

d (miles) = 1.2247448714  * 1,250

d (miles) = 1,530.93 miles

Step-by-step explanation:

Please help!What are the coordinates of the fourth point that could be connected with (–4, 7), (3, 7), and (3, –7) to form a rectangle?

A.
(–4, –7)

B.
(–3, 7)

C.
(–7, 4)

D.
(–7, –4)

What is the distance between the points (10, –7) and (10, 9) on the coordinate plane?

What is the perimeter of rectangle ABCD on the coordinate plane?

Answers

First answer is A

Third answer is 98 

Hope this helps
for the second question the answer is (0,2)

Help me with (mad) Mean Absolute Deviation. I don't get it!!!

Answers

To Solve MAD or the mean absolute deviation what you need to do is get the Mean so lets say  you have the numbers 20,35,18,34,60,82,10, and 29 add them up to get 228. next divide by the amount of numbers 228/8 = 36 now to get the mean absolute deviation get the difference of each number, but some will be negative so we will turn them to positive Like so.
20-36=-16 turn to positive 16
36-35=1
36-18=18
36-34=2
60-34=24
82-34=46
36-10=26
and 36-29=7
you add up these numbers to get 140 then divide them by the numbers 140/8=17.5
so 17.5 is your mean absolute deviation.
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