3a-28-7a=10a I need it fast

Answer:

6

Step-by-step explanation:

Right now, the mean is 6.4 and the median is 6. If you take away 6, the mean would be 6.5 and the median will stay the same. The median will stay the same because when there is no middle number, you add the two closest numbers and divide by two.  

Hope it helped:)

Answer:

AAS

Step-by-step explanation:

The others are wrong

Answer:

0

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

3 is 75 the way to 4 so it would be 75%

Answer:

100

Step-by-step explanation:

y = % · x

y = 40% · 250

y = 0.40 · 250

y = 100

Answer: 2

Step-by-step explanation:

Given

In a litter of 10 Puppies, 4 are black i.e.

[tex]\Rightarrow \dfrac{4}{10}\times 100=40\%\ \text{of puppies are black}[/tex]

In a litter of 5, there would be

[tex]\Rightarrow 5\times 40\%=5\times 0.4=2[/tex]

There are 2 black puppies

Answer:

Step-by-step explanation:

120 is going to be 45 + x.

120 - 45 = x

120 - 45 = 75.

Answer:

2(2t+3)

Step-by-step explanation:

Given the expression;

5t + 10 - 4 - t

Combining the like tems;

5t - t + 10 - 4

= (5t-t) + (10-4)

= 4t + 6

Factor out 2

= 2(2t+3)

This gives the required expression

Answer:

4t+6

Step-by-step explanation:

Answer:

x = 6   y = 5

Step-by-step explanation:

X VALUE

3x+11 = 5x-1

12 = 2x

x= 6

Y VALUE

4y-1 = 19

4y = 20

y = 5

Answer:

5

Step-by-step explanation:

Answer:

Estimates: $65

Actually: $73

65 / 73

= 0.9 (round to nearest tenth)  

I hope this helps, I may be wrong. Somebody can correct me if I am wrong. :)

Answer:

A = -2

B = -8

Step-by-step explanation:

A system of equations has infinitely many solutions when both equations are exactly the same equation, then both graphs intersect in infinitely many points, meaning that the system has infinitely many solutions.

Then if we have the equations:

A*x- y = 8

2*x + y = B

We want to find A and B such that both equations are exactly the same thing.

Notice that in the first one we have negative y, while in the second we have positive y.

Then A needs to be minus the coefficient that multiplies x in the other equation, this means that:

A = -2

And B needs to be minus the corresponding therm in the other equation, then B = -8.

Then the system becomes:

-2*x - y = 8

2*x + y = -8

We can see that one equation is -1 times the other, so if we write both of them as linear equations in the slope-intercept form, we get:

y = -8 - 2*x

y = -8 - 2*x

So both equations are exactly the same thing, meaning that we have infinitely many solutions.

Answer:

Choice number 3

Step-by-step explanation:

Because look at the length of 8 on one side and notice the other side is a little longer

Answer:

15+8+6+2=31

Step-by-step explanation:

highest no. is 15

15-7=8

31-15-8=8

middle number 8

8-6=2

CHECK: 15+8+6+2=31

i don't know if my answer is right haha

i checked online it says the answer is 5,6,8,12

Answer: length is 30

Step-by-step explanation:

length times width is area

A= L * W

W= 2/3L

600= L * [tex]\frac{2}{3}[/tex]L

[tex]600=\frac{2}{3} L^{2} \\\frac{3}{2} (600)=L^{2} \\900=L^{2} \\30=L[/tex]

Answer: 5 hours  

Step-by-step explanation:

Carl paid $58 dollars in total and this included the fixed dollar fee and the variable amount of $9.

To find the number of hours, first deduct the fixed component:

= 58 - 13

= $45

$45 was spent as a result of hourly fee. The number of hours is therefore:

= Total hourly cost/ Cost per hour

= 45 / 9

= 5 hours  

Answer:

7x = - 35

Step-by-step explanation:

Equation 1 :

11x - 3y = - 17

Equation 2 :

-4x + 3y = - 18

Equation 1 + 2

11x - 3y = - 17

-4x + 3y = - 18

_____________

11x - 4x - 3y + 3y = - 17 + (-18)

7x = - 35

Answer:

35x^2y^2

Step-by-step explanation:

just multiply and combine like terms

Answer:

5

Step-by-step explanation:

A reciprocal is the inverse of a fraction.

To find it just flip the numerator and denominator.

1/5 becomes 5/1, or 5.

The calculated reciprocal of the number 1/5 is 5

From the question, we have the following parameters that can be used in our computation:

Number = 1/5

By definition, the reciprocal of a number x is represebted as

reciprocal = 1/x

In this case,

x = 1/5

Substitute the known values in the above equation, so, we have the following representation

reciprocal = 1/(1/5)

Evaluate

reciprocal = 5

Hence, the reciprocal is 5

Read more about expression at

https://brainly.com/question/30492964

#SPJ6

Answer:

I believe x=2

Step-by-step explanation:

3x-6=-4x+8

7x=14

x=2

Answer:

Step 1: Remove parentheses by multiplying factors.

= (x * x) + (1 * x) + (2 * x) + (2 * 1)

Step 2: Combine like terms by adding coefficients.

(x * x) = x2

(1 * x) = 1x

(2* x) = 2x

Step 3: Combine the constants.

(2 * 1) = 2

Step 4: Therefore, Simplifying Algebraic Expression is solved as

= x2 + 3x + 2.

Step-by-step explanation:

answer isx2 + 3x + 2.

Answer:

x = 12

Step-by-step explanation:

Given a tangent and a secant from an external point to the circle.

Then the product of the external part of the secant and the entire secant is equal to the square of the measure of the tangent, that is

3x = 6² = 36 ( divide both sides by 3 )

x = 12

Answer:

144?

Step-by-step explanation:

Answer:

im pretty sure the answer would be 40m

Step-by-step explanation:

Answer:

Area: 40m²

Step-by-step explanation:

The first thing we need to do in order to solve this problem is split the shape into three different rectangles. We are going to have one rectangle that is 3 m by 7 m, one that's 4 by 4, and one that is 3 by 1. We are now going to find the area of each one individually.

To find the area of a rectangle, you multiply the length by the width. So, for the first rectangle, you would multiply 7 and 3. This equals 21, so that is the area of the first rectangle. Repeat this for the other two rectangles, then add all the areas together and you will get the total area of this shape.

Remember, when you are finding the area of an object, you must always put the label and a squared sign next to the number!

7×3=21

4×4=16

3×1=3

21+16+3=40

Area = 40m²

I hope this is fairly easy to understand. Please let me know if you need any more help. Good luck and have a great morning!

Answer:

the probibiltiy that your roll 3 is 1/6  and 5 is 1/6 that is sepreate if its both together it is i belive 2/6

Step-by-step explanation:

Answer:

42.471% increase

Step-by-step explanation:

Answer:

13pounds =$7

13/7pounds = $1

1.85pounds=$1

Step-by-step explanation:

Answer:

How much brain we talkin?

Step-by-step explanation:

???

Answer:

3084 sq. ft

Step-by-step explanation:

for the first three rooms,

area= 6l² = 6× 17² = 1734

for the next two rooms,

area= 6l² = 6×15² = 1350

total area = 3084

Answer: her answer is NOT reasonable because 1/2 is bigger that 1/6. The real addition to 1/2 and 1/4 is 3/4.

Step-by-step explanation:

1/2 is 2/4 and 1/4 stays the same because it is the common denominator

Add them and you get 3/4