MATHEMATICS HIGH SCHOOL

In a survey of market, it is found that 143 persons use white toothpaste and 135 use red toothpaste. If 70 of them use both the toothpaste then find the number of persons who use at least one of the toothpaste​

Answers

Answer 1
Answer:

Answer:

let W and R represent white toothpaste and red toothpaste represently

n(W)=143

n(R)=135

n(WnR)=70

n( WuR)=?

Now,

n(WuR)=n(W)+n(R)_n(WnR)

=143+135_70

=208

that's all don't forget to write therefore.

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Present age of Ram and Ravi are in the ratio4:3.The ratio of their ages will be 5:4 after 5 years. Find Ravi's present age​
HELP PLEASE .... If the geometric mean between 3 and x is 6, find the value of x.
A 2-pound box of spaghetti costs $2.50. Philip says that the unit cost is 2 over 250 = $0.80 per pound. Explain his error
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What is the ratio of 5 hours to 100 minutes

Answers

for this question you should know that 5 hours is equal to 300 minutes so the ratio of 300 minutes to 100 minutes is 300/100 which is equal to 3/1 or 3 :)))
i hope this is helpful
have a nice day 
first 5x60=300
therefore...   300:100
300/50=6   and    100/50=2
6:2
therefore is 3/1

a large square room has an area of 144 m2 . a) find the length of a side of the room. b) how much baseboard is needed to go around the room? c) each piece of baseboard is 2.5 m long. how many pieces of baseboard are needed?

Answers

Part (a)

area = (side)^2

side = sqrt(area)

side = sqrt(144)

side = 12 meters

==============================

Part (b)

perimeter = 4*(side)

perimeter = 4*12

perimeter = 48

Therefore, you'll need 48 meters of baseboard.

===============================

Part (c)

n = number of pieces

2.5n = total length of all n baseboards

2.5n = total perimeter

2.5n = 48

n = 48/2.5

n = 19.2

Round this up to the nearest whole number. Do not round to n = 19 as that value is too small. Note how 2.5n = 2.5*19 = 47.5 meters, which is 0.5 meters short of the goal of 48 meters.

But if n = 20 then 2.5n = 2.5*20 = 50 meters. We'll have 2 extra meters of baseboard.

Therefore, you need 20 pieces of baseboard.

===============================

Answers:

(a)  side length = 12 meters

(b)  48 meters of baseboard

(c)  20 pieces

Final answer:

The length of a side of a room with an area of 144m^2 is 12m. The total amount of baseboard needed is the perimeter, which is 48m. If each piece of baseboard is 2.5m, then you would need 20 pieces to cover the room.

Explanation:

The area of a square is calculated by squaring the length of one of its sides. Therefore, if the area is 144m2, the length of one side can be found by taking the square root of the area, which is 12m.

Baseboard is usually required to be placed around the entire room, so you'd need to find the perimeter of the square. The perimeter of a square is four times the length of one side, therefore, 12m x 4 = 48m.

As for the number of baseboard pieces, each piece is 2.5m long. So the total number of pieces needed would be the total length of baseboard (48m) divided by the length of each piece (2.5m). This equals 19.2, but since you can't use 0.2 of a piece, you'd need to round up, resulting in 20 pieces being needed.

Learn more about Square Room Dimensions here:

brainly.com/question/34347502

#SPJ11

Solve for x 5x−1=6x−9 It would be better for more of a simpler and easier method if possible.

Answers

Answer:

X=8

Step-by-step explanation:

5x - 1 = 6x - 9

MovevariabletoL.H.Sandchangeitssign:

5x - 6x - 1 = - 9

MoveconstanttoRHSandchangeitssign:

5x - 6x = - 9 + 1

Combinelike termsandsimplify:

- x = - 8 \n x = 8

Hopethishelps....

Goodluck on your assignment...

If im making 8.25 an hour 30 hours a week how much would i make after taxes in Florida? I think the taxes are 6.2 %

Answers

If you were to earn that for 30 hours after taxes, you'd earn in total about $230.

Solve for x 4x-4<8 and 9x+5>23

Answers

Answer:idk

Step-by-step explanation:

Answer:

9x > 18

Step-by-step explanation:

Answer:

(i) x<3

(ii) x > 2

Step-by-step explanation:

4x - 4 < 8

Add 4 to both sides of the equation , that is

4x - 4 + 4 < 8 + 4

4x < 12

divide through by 4

x<3

Also

9x + 5 > 23

subtract 5 from both sides , that is

9x > 18

x > 2

If a car travels 55 miles per hour how far will it travel in half an hour

Answers

Answer:

27.5 miles

Step-by-step explanation:

55 divided by 2 is 27.5

Answer:

27.5 miles

always half it when it is half a mile
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