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weqwewe [10]
3 years ago
9

There were 45 runners to start a race. In the first half of the race, 1/3 of them dropped out. In the second half of the race, 3

/5 of the remaining runners dropped out. How many runners finished the race?
Mathematics
1 answer:
Helen [10]3 years ago
5 0
45/3=15 45-15=30 30/5=6 3x6=18 30-18=12 the answer is 12
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11Alexandr11 [23.1K]

Answer:20 pints of blue paint and 8 pints of yellow paint

Step-by-step explanation:

5 pints of blue and 2 pints of yellow make 7 pints of green. (5 + 2 = 7)You must do this four times to get 28 pints of green. (4  · 7 = 28)So you need 20 (4 · 5) pints of blue and 8 (4 · 2) pints of yellow.

4 0
2 years ago
BEST ANSWER GETS BRAINLIEST!!!!!!!!!!! PLEASE HELP ASAP!!!!!!!!!!
Helen [10]

The answer is that each person will be paying $16.75 if the bill is equally divided. Hope this helps! Plz mark me brainliest!! :)

6 0
3 years ago
to design the interior surface of a huge stainless-steel tank, you revolve the curve y=x^2 on the interval 0x4 about the y-axis.
Oksana_A [137]

Answer:

W = 21.44*10⁶J

Step-by-step explanation:

Given

y = x²    (0 < x < 4)

γ = 10000 N/m³

W = ?

If we apply

y = 4² = 16 = h

y =  x²  ⇒  x = √y

then

V = π*(√y)²*dy = π*y*dy

W = (γ*V) *(16-y) = γ*π*y*dy*(16-y)

⇒  W = γ*π*∫y*(16-y)dy = γ*π*(8y²-(y³/3))

finally we obtain  (0 < y < 16)

W = γ*π*(8y²-(y³/3)) = 10000*π*(8*16²-(16³/3)) = 21.44*10⁶J

7 0
3 years ago
Compare the two statements below and decide if the phrase: "In a plane," needs to be included in order to make a true statement.
mel-nik [20]

by any chance do you go to a higl school in Conroe bc I’m taking that exact test on canvas

Step-by-step explanation:

3 0
3 years ago
You decide finance a $12,000 car at 3% compounded monthly for 4 years. What will your monthly payments be? How much interest wil
dexar [7]

Answer:

Step-by-step explanation:

The cost of the car is $12,000

We would apply the periodic interest rate formula which is expressed as

P = a/[{(1+r)^n]-1}/{r(1+r)^n}]

Where

P represents the monthly payments.

a represents the cost of the car

r represents the interest rate

n represents number of monthly payments. Therefore

a = 12000

r = 3%/12 = 0.03/12 = 0.0025

n = 12 × 4 = 48

Therefore,

P = 12000/[{(1+0.0025)^48]-1}/{0.0025(1+0.0025)^48}]

12000/[{(1.0025)^48]-1}/{0.0025(1.0025)^48}]

P = 12000/{1.127 -1}/[0.0025(1.127)]

P = 12000/(0.127/0.0028175)

P = 12000/45.075

P = $266.22

The monthly payment is $266.22

The total amount that would be paid over the life of the loan is

266.22 × 48 = $12778.56

The amount of interest paid is

12778.56 - 12000 = $778.56

3 0
3 years ago
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