All categories

3 years ago

Help ASAP

Mathematics

2 answers:

Debora [2.8K]3 years ago

5 0

Answer:

1) 5p - 4 2) -4n - 3 3) -55b -58 4) -41p + 22 5) 24n - 40 6) -4x - 6

Step-by-step explanation:

1) 3(2p - 4) - (p + 8)= 6p - 12 - p + 8 = 5p - 4

2) -3(n + 3) - (n - 6)= -3n - 9 - n + 6 = -4n - 3

3) -4(7 + 5b) - 5(7b + 6)= -28 - 20b - 35b - 30 = -55b -58

4) 8(2 - 5p) - (p - 6)= 16 - 40p - p + 6 = -41p + 22

5) 8(n + 2) + 8(2n - 7)= 8n + 16 + 16n - 56 = 24n - 40

6) -(6x + 4) - 2(-x + 1)= -6x - 4 + 2x - 2 = -4x - 6

rosijanka [135]3 years ago

3 0

Answer:

In photomath

Step-by-step explanation:

1.) 6p-12 or 6(p-2)

2.) -4n-3

3.)-58-55b

4.) 22-41p

5.)8(3n-5) or 24n-40

6.)-2(2x+3) or -4x-6

You might be interested in

3) 18 + 9 + 19 x 19 I do not no how to do it

Degger [83]

Answer:

388

Step-by-step explanation:

18+9+361
27+361
388

8 0

2 years ago

Read 2 more answers

Write the denominator of the rational number257/500 in the form 2 m x 5 n , m and n are negative integers Hence write its decima

maw [93]

Answer:

0.514

Step-by-step Explantion:

Denominator = 500 = 2^2 * 5^3

257/500 = 257/2^2*5^3 = 2*257/2*2^2*5^3 = 514/2^3*5^3 = 514/(2*5)^3 = 514/10^3 = 0.514

6 0

3 years ago

In a candy bar, 165 calories are from sugar. There are 250 calories in the candy bar. What percent of the calories are from suga

icang [17]

You can simply find out the percentage of the calories from the sugar with this formula :

165/250 x 100%

You will find out that the percentage would be 66 %

hope this helps

4 0

3 years ago

Read 2 more answers

If there are approximately 1.8 million cars in Vancouver and if each car travels an average of 17,500 kilometres in a year, how

Goryan [66]

Rates are used to measure a quantity over another.

The 1.8 million cars use $1.85 \times 10^{10}$ liters each year

Given

$Cars = 1.8\ million$

$d = 17500km$ --- distance

$r = 40miles/gallon$

First, we calculate the number (n) of gallons used by each car

$r = \frac{d}{n}$

Solve for n

$n = \frac{d}{r}$

So, we have:

$n = \frac{17500km}{40miles/gallon}$

$n = \frac{17500km}{40miles}gallon$

Convert miles to kilometers

$n = \frac{17500km}{40km \times 1.60934}gallon$

$n = \frac{17500km}{64.3738km}gallon$

$n = 271.85\ gallon$

The number of gallons (N), used by all the cars is:

$N = n \times cars$

$N = 271.85 \times 1.8\ million$

$N = 489330000$

Convert to liters

$N = 489330000 \times 3.78541L$

$N = 1852314675.3L$

In scientific notation to 2 decimal places, we have:

$N = 1.85 \times 10^{10}L$

Hence, the number of liters used is $1.85 \times 10^{10}$

Read more about distance and rates at:

brainly.com/question/24659604

4 0

3 years ago

A rectangles width is 5 feet less than its length. Write a quadratic function that expresses the rectangles area in terms of its

Ira Lisetskai [31]

Answer:

Area = L²-5L

Step-by-step explanation:

Area = length * width

Length = L

Width = L - 5

Area = L * (L-5) = L²-5L

4 0

3 years ago