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Svetlanka [38]
3 years ago
10

I really please need help. Does anyone know these last 6 questions. Brainliest answer and 13 points

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0
29. B
30. C
31. 2 cups
32. 1.5 times
33. <span>Because milli means 1/1000 of a meter, centi means 1/100 of a meter while kilo </span><span>means 1000 meters</span>
34. 16 cups =1 gal
16x2= 32
32 cups
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A badminton club has 330 members. 240 are adults and the rest are children. Two thirds of the children are boys and the rest are
Margaret [11]

Answer:

The number of boys last year will be 50 boys

Step-by-step explanation:

330 members with 240 adults

The number of children will be;

330-240 = 90

2/3 of 90 are boys

= 2/3 * 90 = 60 boys

Number of girls is 90-60 = 30

Ratio of adults:boys:girls

= 240:60:30

divide through by 30

= 8:2:1

b) A year ago, there were 200 adults but the ratio still remains same

Let the number of girls be x, the number of boys will be 2x

Thus, total number is 200 + x + 2x = 200 + 3x

Total ratio is 8 + 2 + 1 = 11

mathematically;

8/11 * (200 + 3x) = 200

8(200 + 3x) = 11(200)

1600 + 24x = 2200

24x = 2200-1600

24x = 600

x = 600/24

x = 25

So the number of boys will be 25 * 2 = 50

3 0
3 years ago
Tan(x-y) if cscx=13/5 and coty=4/3
ehidna [41]

Answer:

tan(x-y) = -16/63

Step-by-step explanation

Tan(x-y) if cscx=13/5 and coty=4/3

Given

coty = 4

1/tany = 4/3

Cross multiply

tan y = 3/4

Also since cscx = 13/5

1/sinx = 13/5

sinx = 5/13

Since sinx = opp/hyp

opp = 5

hyp = 13

Get the adjacent

hyp² = opp²+adj²

13² = 5²+adj²

adj² = 13² - 5²

adj² = 169 - 25

adj² = 144

adj = 12

cosx = adj/hyp

cosx = 12/13

tanx = sinx/cosx

tanx = (5/13)/(12/13)

tanx = 5/13 * 13/12

tan x = 5/12

tan(x-y) = tanx - tany/1+tanxtany

tan(x-y) = (5/12 - 3/4)/1+(5/12)(3/4)

tan(x-y) = (5-9/12)/1+5/16

tan(x-y) = -4/12/(21/16)

tan(x-y) = -1/3 * 16/21

tan(x-y) = -16/63

3 0
3 years ago
URGENT PLEASE HELP ME ON THIS QUESTION.!!! the first term of a sequence of numbers is 18
Fynjy0 [20]
Well this problem can be solved with Algebra

the rule here is that for every incrementing sequence you increase your number by 6.

T(n)=18+6(n-1)

for 603 to be in the sequence, it has to male sense with the function above

603=18+6(n-1)

603-18=585

585=6(n-1)

n-1=(585/6)

n=(585+6)/6

n=591/6

here is your answer.
3 0
3 years ago
The two polygons are similar. Write a proportion and solve for x <br>SHOW WORK PLEASE​
Kay [80]

Answer:

Answer: 2.5

Step-by-step explanation:

It seems as if everything is divided by two so 5/2 is 2.5

6 0
2 years ago
A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat
aivan3 [116]

The group rent 11 river rent tubes and 4 cooler tubes.

Step-by-step explanation:

Rent for river rent tube = $20

Rent for cooler tubes = $12.50

Total spent = $270

Total tubes rented = 15

Let,

x be the number of river rent tube.

y be the number of cooler tubes.

According to given statement;

x+y=15    Eqn 1

20x+12.50y=270    Eqn 2

Multiplying Eqn 1 by 20

20(x+y=15)\\20x+20y=300\ \ \ Eqn\ 3

Subtracting Eqn 2 from Eqn 3

(20x+20y)-(20x+12.50y)=300-270\\20x+20y-20x-12.50y=30\\7.50y=30

Dividing both sides by 7.5

\frac{7.5y}{7.5}=\frac{30}{7.5}\\y=4

Putting y=4 in Eqn 1

x+4=15\\x=15-4\\x=11

The group rent 11 river rent tubes and 4 cooler tubes.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/8520610
  • brainly.com/question/846474

#LearnwithBrainly

6 0
3 years ago
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