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3 years ago

Twice the difference of a number and seven is equal to three times the sum of the number and seven

Mathematics

1 answer:

Nana76 [90]3 years ago

5 0

2(n-7) = 3(n+7)
2n-14 = 3n + 21
-35 = n (answer)

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*HELP ASAP I CAN ONLY DO THIS ONE TIME OR ILL FAIL*

docker41 [41]

Answer:

Step-by-step explanation:

V= BxHxL divided by 2

6x9x21= 1,134

divided by 2 equals 567yd

7 0

3 years ago

Read 2 more answers

Simplify the expression. Assume all variables are positive. <br> (r/32s)^8/5

balandron [24]

Answer:

Step-by-step explanation:

Alright, lets get started.

The given expression is :

$(\frac{r}{32s} )^{\frac{8}{5} }$

It could be written as

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{32} )^{\frac{8}{5} }$

32 could be written as $2^{5}$

So, replacing that in our expression

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{2^{5} } )^{\frac{8}{5} }$

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{2} )^{5*\frac{8}{5} }$

$(\frac{r}{s} )^{\frac{8}{5} }*(\frac{1}{2} )^{8}$

$\frac{1}{256}*(\frac{r}{s} )^{\frac{8}{5} }$

This is the simplified form of given expression. : Answer

Hope it will help :)

6 0

2 years ago

Help me please.....,,,,,,,,,,,,

attashe74 [19]

Answer:

It has to be a positive number.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Tanya has 442 pennies. If she gives away 128 of the pennies equally to 4 friends, about how many pennies will Tanya give each

butalik [34]

Answer:

32 pennies to each friend and 314 pennies remaining

Step-by-step explanation:

For the first step, we need to divide 128 by 4 to get the amount of pennies she gave to each friend: 128/4 = 32

For the second step, we need to subtract 128 from 442 to find out how many pennies she has left: 442-128 = 314

Hope this helps!

7 0

2 years ago

Read 2 more answers

Evaluate |2y-2| when y=-2

grandymaker [24]

Answer:

Step-by-step explanation:

|2y-2| when y = 2

= |2(-2)-2|

= |-4 - 2|

= |-6|

= 6.

3 0

2 years ago