All categories

3 years ago

Which expression is equivalent to 9 p minus 3 p + 2? 8p 14p 6 p + 2 9 p minus 1

Mathematics

2 answers:

tankabanditka [31]3 years ago

7 0

Your answer is c.

Step-by-step explanation: Let’s say P is worth 1: 9 times 1 equals 9: 3 times 1 equals 3: 9 - 3 = 6/ 6 + 2 equals 8. Now this is C: 6 times 1 equals 6/ 6+ 2 = 8

zaharov [31]3 years ago

3 0

Answer: 6p+2

Step-by-step explanation:

The problem is 9p-3p+2, so if you add the like terms of 9p and -3p, then the expression simplifies to 6p+2

You might be interested in

Carl is boarding a plane. He has 222 checked bags of equal weight and a backpack that weighs 4kg. The total weight of Carl's bag

Advocard [28]

Well first of all, 'kg' means mass, not weight.

If the total mass of all his baggage is 35 kg, and the mass
of his backpack is 4 kg, then the combined mass of all of his
checked bags is (35 - 4) = 31 kg.

If all of his checked bags have the same mass, then the mass
of each one is

(31 kg / 222 bags) = 139.64 grams/bag (rounded)

4 0

3 years ago

if n represents a number, write an expression for the quantity three less than twice this number divided by the quantity 7 more

Ugo [173]

Answer:

(2n / n^2 + 7) - 3 i think

Step-by-step explanation:

hope this helped a little bit :))

4 0

3 years ago

Help please ITS OF TRIGONOMETRY<br>PROVE

Flauer [41]

Answer:

The equation is true.

Step-by-step explanation:

In order to solve this problem, one must envision a right triangle. A diagram used to represent the imagined right triangle is included at the bottom of this explanation. Please note that each side is named with respect to the angle is it across from.

Right angle trigonometry is composed of a sequence of ratios that relate the sides and angles of a right triangle. These ratios are as follows,

$sin(\theta)=\frac{opposite}{hypotenuse}\\\\cos(\theta)=\frac{adjacent}{hypotenuse}\\\\tan(\theta)=\frac{opposite}{adjacent}$

One is given the following equation,

$\frac{sin(A)+sin(B)}{cos(A) +cos(B)}+\frac{cos(A)-cos(B)}{sin(A)-sin(B)}=0$

As per the attached reference image, one can state the following, using the right angle trigonometric ratios,

$sin(A)=\frac{a}{c}\\\\sin(B)=\frac{b}{c}\\\\cos(A)=\frac{b}{c}\\\\cos(B)=\frac{a}{c}$

Substitute these values into the given equation. Then simplify the equation to prove the idenity,

$\frac{sin(A)+sin(B)}{cos(A) +cos(B)}+\frac{cos(A)-cos(B)}{sin(A)-sin(B)}=0$

$\frac{\frac{a}{c}+\frac{b}{c}}{\frac{b}{c}+\frac{a}{c}}+\frac{\frac{b}{c}-\frac{a}{c}}{\frac{a}{c}-\frac{b}{c}}=0$

$\frac{\frac{a+b}{c}}{\frac{a+b}{c}}+\frac{\frac{b-a}{c}}{\frac{a-b}{c}}$

Remember, any number over itself equals one, this holds true even for fractions with fractions in the numerator (value on top of the fraction bar) and denominator (value under the fraction bar).

$\frac{\frac{a+b}{c}}{\frac{a+b}{c}}+\frac{\frac{b-a}{c}}{\frac{a-b}{c}}$

$\frac{\frac{a+b}{c}}{\frac{a+b}{c}}+\frac{\frac{-(a-b)}{c}}{\frac{a-b}{c}}$

$1+(-1)=0$

$1-1=0$

$0=0$

7 0

3 years ago

The ratio of quarters to dimes in a coin collection is 5:3. You add the same number of new quarters as dimes

Anon25 [30]

The ratio of quarters to dimes is not still 5 : 3

<u>Solution:</u>

Given that ratio of quarters to dimes in a coin collection is 5:3 .

You add same number of new quarters as dimes to the collection .

Need to check if ratio of quarters to dimes is still 5 : 3

As ratio of dimes and quarters is 5 : 3

lets assume initially number of quarters = 5x and number of dimes = 3x.

Now add same number of new quarters as dimes to the collection

Let add "x" number of quarters and "x" number of dimes

So After adding,

Number of quarters = initially number of quarters + added number of quarters = 5x + x = 6x

Number of dimes = initially number of dimes + added number of dimes

= 3x + x = 4x

New ratio of quarters to dimes is 6x : 4x = 3 : 2

So we have seen here ratio get change when same number of new quarters and dimes is added to the collection

Ratio get change from 5 : 3 when same number of new quarters and dimes is added to the collection and new ratio will depend on number of quarters and dimes added to collection.

3 0

4 years ago

Isaac spent 1/3 of his monthly income

Nataliya [291]

Answer:

monthly income is 180000. sorry for bad handwriting

Step-by-step explanation:

fraction of food rent cloth : 1/5+1/4+1/3=47/60

fraction of leftover: 1-47/60= (60-47)/60 = 13/60

3 0

3 years ago