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3 years ago

Which expression is equivalent to 3(4m - 5 )?

Mathematics

2 answers:

Citrus2011 [14]3 years ago

8 0

12m-15 is the expression to this question

Ivanshal [37]3 years ago

5 0

Answer:

12m -15

Step-by-step explanation:

Distribute

3(4m-5)

3*4m -3*5

12m -15

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There are 280 pieces of fruit in a fruit salad. There are twice as many raspberries as blueberries, three times as many grapes a

dedylja [7]

Answer:

64 cherries

Step-by-step explanation:

Given that

There are 280 pieces of fruit in a fruit salad

There are twice as many raspberries as blueberries,

three times as many grapes as cherries,

and four times as many cherries as raspberries

We need to find out the number of cherries in the fruit salad

So,

Let us assume the blueberries be x

So, the raspberries be 2x

Cherries be 8x

And, grapes be 24x

Now

x + 2x + 24x + 8x = 280

35x = 280

x = 8

hence, the No of cherries in the salad

= 8 x

= 8(8)

= 64 cherries

5 0

2 years ago

I WILL MARK BRAINLIEST

vagabundo [1.1K]

Answer:

$\frac{81}{m^7}$

Step-by-step explanation:

We have a certain expression and are asked to find its equivalent with the answers provided :

$(3m^{-4} )^3(3m^5)$

Remove the parenthesis around 3m^5 :

$(3m^{-4} )^3*3m^5$

Do the exponent rule for outside and inside exponent parenthesis :

$(3m^{-4*3} )$

$3^3m^{-12} *3m^5$

Apply addition exponent rule :

$m^{-12} *3^{3+1} m^5$

Add :

$m^{-12} *3^4m^5$

Apply the addition rule for -12 + 5 :

$3^{4} m^{-7}$

Apply negative exponent rule for m^-7 :

$3^4*\frac{1}{m^7}$

Multiply the fractions :

$\frac{1*3^4}{m^7}$

$\frac{81}{m^7}$

3 0

2 years ago

Find the sum of this problem.

IceJOKER [234]

Answer:

Step-by-step explanation:

i think

5 0

2 years ago

he perimeter of a rectangle is twice the sum of its length and its width. the perimeter is 16 and the length is 2 meters more th

Makovka662 [10]

Answer:

Step-by-step explanation:

2(l+b)=16

Also it is given that l=2b+2

2(2b+2+b)=16

3b+2=8

b=2metre

l=2(2)+2

l=6metre

3 0

2 years ago

Help with the this question pleaseeee

34kurt

Answer:

32x - 8

Step-by-step explanation:

A = LW

A = (8x - 2)(4)

A = 32x - 8

7 0

2 years ago

Read 2 more answers