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3 years ago

What is the expression of 3 ∙ (n ∙ 5)

Mathematics

2 answers:

telo118 [61]3 years ago

7 0

Answer:

15n

Step-by-step explanation:

3n* 5

15n

iris [78.8K]3 years ago

6 0

The answer is 3n^5 i believe

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Multiply and simplify. A) 36 1/12 B) 36 1/6 C) 41 1/12 or D) 41 1/6

Scorpion4ik [409]

1 Convert 12\frac{2}{3}12
3

2
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
c

b
=
c

ac+b

\frac{12\times 3+2}{3}\times 3\frac{1}{4}
3

12×3+2
×3
4

1

2 Simplify 12\times 312×3 to 3636
\frac{36+2}{3}\times 3\frac{1}{4}
3

36+2
×3
4

1

3 Simplify 36+236+2 to 3838
\frac{38}{3}\times 3\frac{1}{4}
3

38
×3
4

1

4 Convert 3\frac{1}{4}3
4

1
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
c

b
=
c

ac+b

\frac{38}{3}\times \frac{3\times 4+1}{4}
3

38
×
4

3×4+1

5 Simplify 3\times 43×4 to 1212
\frac{38}{3}\times \frac{12+1}{4}
3

38
×
4

12+1

6 Simplify 12+112+1 to 1313
\frac{38}{3}\times \frac{13}{4}
3

38
×
4

13

7 Use this rule: \frac{a}{b}\times \frac{c}{d}=\frac{ac}{bd}
b

a
×
d

c
=
bd

ac

\frac{38\times 13}{3\times 4}
3×4

38×13

8 Simplify 38\times 1338×13 to 494494
\frac{494}{3\times 4}
3×4

494

9 Simplify 3\times 43×4 to 1212
\frac{494}{12}
12

494

10 Simplify
\frac{247}{6}
6

247

11 Convert to mixed fraction
41\frac{1}{6}41
6

1

41 and 1/6

4 0

3 years ago

A student downloaded a new game on her phone that was recommended by her friend. She wanted to show her friend how good

anygoal [31]

Answer:

a. 587

b. 543

Step-by-step explanation:

a. Mean = sum / number of numbers

To find the sum, we can add the numbers up.

432 + 543 + 348 + 788 + 823 = 2934

There are 5 numbers. Our mean is thus

2934/5 = 586.8, or 587 when rounding up. We round up because we have a .8 at the end, and 8 ≥ 5

b. To find the median, we first must order the numbers. The numbers ordered are this:

348 , 432 , 543 , 788 , 823

To find the median, we can cross off one number on each side until we are left with one or two numbers.

348 , 432 , 543 , 788 , 823

cross out one number from each endpoint

432 , 543 , 788

cross out one number from each endpoint

543

7 0

2 years ago

John has decided to prepare an old field for his son's new horse. the length of the field is 10 meters less than 4 times its wid

tatuchka [14]

Answer: The total money invested in the field will be $1,623.80

Step-by-step explanation:

step 1

Find the dimensions of the field

Let

x -----> the length of the field

y -----> the width of the field

p=2(x+y)

p(4.80)=1,584

p=330m

we know that

The perimeter of the field is equal to

330=2(x+y)----> equation A

x=4y-10 ------> equation B

substitute equation B in equation A and solve for y

330=2(4y-10+y)

165=(5y-10)

5y=165+10

y+35

Find the value of x

x=4(35)-10+130

therefore

The length of the field is 130 meters and the width of the field is 35 meters

step 2

Find the area of the field

The area of the field is

A=xy

substitute

A=(130)(35)=4,550m2

step 3

Find the number of bags of seed

Divide the area by 460

4,550/460=9.89 bags

Round up to the nearest whole number

9.89 bags=10 bags

step 4

Find the cost of the seed

(10 )(3.98)=$19.8

step 5

Find the total money invested in the field

1,584+$39.8=$1,623.80

7 0

2 years ago

Read 2 more answers

Eggs were $2.05 per dozen on January 1st and $2.00 per dozen February 1st what percent did the price decrease during January?

Sholpan [36]

This is a 2.5% decrease in price.

8 0

3 years ago

Read 2 more answers

You have 12 coins of which you need to flip only 4 heads. If the probability of flipping heads is 35%, what is the probability t

mel-nik [20]

Answer:

33.3333333333

Step-by-step explanation:

One coin would equal over 11 more would be 8.3333333333 so time that by 4

GoodLuck

5 0

3 years ago