3 years ago

Help me out please!!!!!

Mathematics

1 answer:

taurus [48]3 years ago

6 0

Answer:

jnnnnnnnnnnnnnnn;

Step-by-step explanation:

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Find two consecutive odd numbers whose sum is 144

Maurinko [17]

Answer:

71 and 73

Step-by-step explanation:

hope this helps!

3 0

3 years ago

A) What percentage of 5³ is 5?<br> b) What percentage of 5³ is 5²?

soldi70 [24.7K]

Step-by-step explanation:

a) 5³= 5*5*5 = 125

5/125*100%

b) 5²=5*5=25

25/125*100%

20%

6 0

2 years ago

The sum of 3 consecutive even numbers is 132

pantera1 [17]

It is 42,44, and 46. If you add them all together you get 132 :)

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4 years ago

An inlet pipe on a swimming pool can be used to fill the pool in 40 hours. The drain pipe can be used to empty the pool in 42 ho

statuscvo [17]

Answer:

Pool will be filled in 280 hours

Step-by-step explanation:

Inlet pipe fills in 40 hours = 1 pool

Inlet pipe fills in 1 hours = $\frac{1}{40}$

Drain pipe empty in 42 hours = 1 pool

Drain pipe empty in 1 hour = $\frac{1}{42}$

If both pipes are opened together

then in pool fills in 1 hour = $\frac{1}{40}$ - $\frac{1}{42}$

on simplifying the right side ,we get $\frac{42-40}{(40)(42)}$

= $\frac{2}{(40)(42)}$

= $\frac{1}{840}$

$\frac{1}{840}$ pool fills in 1 hour

1 pool will be filled in 840 hours

$\frac{2}{3}$ pool is filled

empty pool = 1 - $\frac{2}{3}$ = $\frac{1}{3}$

therfore $\frac{1}{3}$ pool will be filled in $\frac{1}{3}$ X 840 =

= 280 hours

6 0

3 years ago

The sum of first three terms of an arithmetic series is 21. If the sum of the first two terms is subtracted from the third term

Ronch [10]

Answer:

The terms are - 1, 7 and 15.

Step-by-step explanation:

Let the terms be a-d, a and a+d

ATQ, a-d+a+a+d=21, a=7. a+d-(a+(a-d))=9. d=8. The terms are - 1, 7 and 15.

5 0

3 years ago