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2 years ago

Can someone help me solve this pleaaaaaaaaaaaaaaaaaase 20 points !

Mathematics

2 answers:

Llana [10]2 years ago

5 0

220

Step by step explanation

harkovskaia [24]2 years ago

3 0

I think the answer is 220

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What is 15+cj to the 3rd power when c=6 and j=5

exis [7]

1)( 15+cj)^3 for j = 5 and c = , ( 15+6*5)^3 = (45)^3 = 91125

3 0

3 years ago

Nine people share 6 cookies equally what fraction of a cookie does each person get?

maw [93]

1.5 is the answer I think

6 0

3 years ago

Read 2 more answers

Find 3 ratios that are equivalent to the given ratio. 5:8

timofeeve [1]

$\large\underline{\underline{\maltese{\red{\pmb{\sf{\: Explanation :-}}}}}}$

The given ratio is 5:8, Write it as fraction then multiply the numerator and denominator with same number to get the fractions or ratios equivalent to the given one.

Let's solve!~

$\rule{300pt}{3pt}$

$\large \sf \: 5 : 8 = \frac{5}{8}$

$\sf \: \frac{5}{8} \times \frac{2}{2} = \frac{10}{16} \\ \tt \frac{5}{8} = \frac{10}{16}$

First equivalent ratio is 10:16

$\rule{300pt}{3pt}$

$\sf \frac{5}{8} \times \frac{4}{4} = \frac{20}{32} \\ \tt \: \frac{5}{8} = \frac{20}{32}$

Second equivalent ratio is 20:32

$\rule{300pt}{3pt}$

$\sf \: \frac{5}{8} \times \frac{5}{5} = \frac{25}{40} \\ \tt \: \frac{5}{8} = \frac{25}{40}$

Third equivalent ratio is 25:40.

7 0

2 years ago

Alvin wants to know what his average paddling rate was for a canoe trip to a campsite. On the way there it took him 8 hours agai

Marizza181 [45]

let

r--------> Alvin's average paddling rate in km/hour

y -------> speed of the current in km/hour

we know that

speed= distance/time ------> solve for distance

distance=speed*time

to Campsite against the current

speed=r-y-----> speed=(r-3)

time=8 hours

distance=(r-3)*8------> equation 2

From Campsite with the current

speed=r+y-----> speed=(r+3)

time=3 hours

distance=(r+3)*3------> equation 1

equate equation 1 and equation 2-----> because is the same distance

(r+3)*3=(r-3)*8----> 3r+9=8r-24----> 8r-3r=24+9-----> 5r=33----> r=6.6 km/hour

therefore

the answer is

Alvin's average paddling rate is 6.6 km/hour

7 0

3 years ago

Hellppp 70 pointsss

dimulka [17.4K]

y=a.(X-x1)(X-x2)

x1 and x2 are x-intercepts

x1=-3

x2=1

other points: (-1,8) and (0,5)

y=a.(x+3).(x-1)

a=-2

f(x)= -2.(x+3)(x-1)

7 0

2 years ago