I need some help pls

Answer: -2.5,   -5.5

Step-by-step explanation:

5x - y= -7

3x - y= -2 multiply by -1

5x - y= -7

-3x + y= +2 we add both equations

2x=-7+2,  2x=-5,   x=5/2= -2.5

5(-2.5)-y=-7

- 12.5-y= -7 we simplify and get

-y=-7+12.5,             -y=5.5,    y=-5.5

Answer:

250 packages if 3,000 packages are shipped

Answer:

- 16x + 3y

Step-by-step explanation:

this can be done in two ways- vertical method or horizontal :

I did one:

( i hope this is right)

Answer:

x=60

Step-by-step explanation:

The total interior angles of all triangles add up to 180 degrees.

Since this is an equilateral triangle, all angles are equivalent.

In conclusion the answer is x=60

dude why are still up my friend and are you ready for Christmas

Answer:

28p+14q+21r

Step-by-step explanation:

7(4p + 2q + 3r)

Use distributive property

(7)(4p)+(7)(2q)+(7)(3r)

=28p+14q+21r

Answer:

All natural numbers are whole numbers

Step-by-step explanation:

Answer:

b = 12

Step-by-step explanation:

a² + b² = c²

a and b are the length of the sides in the right triangle and c is the hypotenuse.

since we know one leg and the hypotenuse, we can find the other leg.

9² + b² = 15²

81 + b² = 225

b² = 225 - 81

b² = 144

b = 12

Answer:

The answer is 12

Step-by-step explanation:

the formula is A^2+B^2=c^2

9² + b² = 15²

81 + b² = 225

b² = 225 - 81

b² = 144

b = 12

Answer:

y=x-5

Step-by-step explanation:

2x-2y=10

1.) subtract 2x from both sides

-2y=-2x+10

2.) Divide by -2 to get y by itself

y=x-5

Answer:

y= x+5

Step-by-step explanation:

y =mx+b is slope intercept form

Answer:

Yes you got it right 4x-3y>-12

Step-by-step explanation:

Answer:

x is 4

GR is 10

GB is 49

Step-by-step explanation:

If U is between G and B, then GU + UB = GB .... 1

If R is between G and U, GR + RU = GU ....2

Given

GR is 3x-2

RU is 5x+7

UB is 12

GB is 15x-11

Substitute2 into 1;

Frim 1;

GU + UB = GB

(GR+RU) + UB = GB

3x-2+5x+7+12 = 15x-11

8x+17 = 15x-11

8x-15x = -11-17

-7x = -28

x = 28/7

x = 4

Get GR:

GR = 3x-2

GR = 3(4)-2

GR = 12-2

GR = 10

Get GB:

GB = 15x-11

GB = 15(4)-11

GB = 60-11

GB = 49

Answer:

7

Step-by-step explanation: calculate the prime factors of 7 and 21, than find the greatest common factor

The greatest common factor of 7 and 21 is 7.

A number system is defined as a system of writing to express numbers.

To find the greatest common factor (GCF) of 7 and 21, we can list the factors of each number and identify the largest factor they have in common.

The factors of 7 are 1 and 7

The factors of 21 are 1, 3, 7, and 21.

The largest factor that they have in common is 7.

Therefore, the greatest common factor of 7 and 21 is 7.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ5

Answer:

nice anime lol

Step-by-step explanation:

I like aot better

Explanation

The probability of getting the correct answer is 2/5. This means there are 2 events of getting it right out of 5 events total. Since there are 2 events of getting it right, there are 5-2 = 3 events of getting it wrong.

The odds against getting the right answer is 3:2. We list the number of ways to get it wrong first, a colon, then the number of ways of getting it right.

Answer:

A triangle has sides of lengths 9,7, and 12 is not a right triangle .

Answer:

X =-3

Step-by-step explanation:

....................

Answer:

0.5 or 1/2 ☺

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

Total calories intake of Priti is 180.9 calories

Given that;

Number of calories in 100g banana = 84 calories

Number of calories in 100g yoghurt = 87 calories

Amount of banana and yoghurt Priti have = 60g and 150g respective

Find:

Total calories intake of Priti

Computation:

Total calories intake of Priti = 60[84/100] + 150[87/100]

Total calories intake of Priti = 50.4 + 130.5

Total calories intake of Priti = 180.9 calories

Learn more:

https://brainly.com/question/18087985?referrer=searchResults

Answer:

B. James wants to know how much dirt can fit into a box.

Step-by-step explanation:

Volume is the measurement of space that how an object or a thing take it or in other words the capacity of the object, thing or a figure

So as per the given options, the option B is correct as it represents the capacity of the dirt that could be fitted into a box

Therefore as per the given situation, the option B would be chosen

And, the same is to relevant

Answer:

130-53= $77

Step-by-step explanation:

Step-by-step explanation: games dont cost 130 dollars

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

x is 10 when f(x) = 7

Step-by-step explanation:

f(x) is another way of saying y=. The question is basically asking, what is the value of x when the 3/2x - 8 = 7

So, to do this, you are going replace y with it's numerical value. The numerical value given to you is 7. Now, you are going to solve for x (by isolating x).

[tex]7= \frac{3}{2} x-8\\7+8= \frac{3}{2} x-8+8\\15 = \frac{3}{2} x\\15 / \frac{3}{2} = (\frac{3}{2}x) / 3/2\\10=x[/tex]

f(10) = 7

Check your work?

Plug in 10 where you see x.

y = 3/2x - 8

y = (3/2)(10)-8

y = 7 ✅

i believe the answer is  B.

Answer:

x= sqrt141

Step-by-step explanation:

x^2 + 22^2 = 25^2 by the pythagorean theorem

x^2 + 484 = 625

x^2 = 141

x= sqrt141

Answer:

The light blue/greenish one that says T=PV/K or Greeland

Step-by-step explanation:

We can make the equation more simplier by multiplying both sides by P to remove fractions.

It would become VP=KT

The only answer with VP or PV is B, or the T=PV/K

also, to isolate T, divide the VP=KT by K on both sides to isolate T.

VP/K=T