Mike had 308 dollars to spend on 8 books. After buying them he had 12 dollars. How much did each book cost?

Answer:

5

Step-by-step explanation:

You multiply/divide all the fractions with each other.

Answer: x = 3

because ΔABC has BD is the bisector of ∠ABC

=> AD/AB = DC/BC

⇔ x/6 = 4/8

⇔ x/6 = 1/2

⇔ x = 6.1/2

⇔ x = 3

Step-by-step explanation:

Answer: x=3

Step-by-step explanation:

Answer:

q = [tex]\frac{8}{3}[/tex]

Step-by-step explanation:

The point of intersection (3, 1 ) is the solution to both equations

Using

y = qx - 7 and substituting x = 3, y = 1

1 = 3q - 7 ( add 7 to both sides )

8 = 3q ( divide both sides by 3 )

[tex]\frac{8}{3}[/tex] = q

Answer:

a = 6

Step-by-step explanation:

120 = 3 + 3(7a - 3)   (by PEDMAS, expand parentheses first by distributive property)

120 = 3 + 7a(3) - 3(3)

120 = 3 + 21a - 9

120 = 21a - 6    (add 6 to both sides and rearrange)

21a = 120 + 6

21a = 126   (divide both sides by 21)

a = 126/21

a = 6

Step-by-step explanation:

120-(3+3*(7*a-3))=0

Step by step solution :

STEP

1

:

Equation at the end of step 1

120 - (3 + 3 • (7a - 3)) = 0

STEP

2

:

STEP

3

:

Pulling out like terms :

3.1 Pull out like factors :

126 - 21a = -21 • (a - 6)

Equation at the end of step

3

:

-21 • (a - 6) = 0

STEP

4

:

Equations which are never true:

4.1 Solve : -21 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

4.2 Solve : a-6 = 0

Add 6 to both sides of the equation :

a = 6

One solution was found :

a = 6

Answer:

Equations: y=x+3 and y=-1/2x

solution: (-2,1)

Step-by-step explanation:

Answer:

There’s no picture

Step-by-step explanation:

Next tim, attach it

Answer:

let me look

Step-by-step explanation:

Answer: X equals 7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

First you want to simplify the equation

8x + (-5) = 23 + 4x

-5 + 8x = 23 + 4x

Then solve for x, but before we do that we !!!must!!! move all terms that have x  to the left. Everything else would go to the right.

So we add -4x to both sides ..

-5+ 8x + (-4x) = 23 + 4x + (-4x)

-5 + 4x = 23 + 4x + (-4x)

-5 + 4x = 23 +0

-5 + 4x  = 23

Then add 5 to both sides of the equation:

-5 + 5 + 4x = 23 + 5

0 + 4x = 23 + 5

4x = 23 + 5

4x = 28

Then divide each side by 4:

x = 7

And there you have it. The answer is 7. Hope this helps! :)

Answer:

100% for 100 dollars

Step-by-step explanation:

i think so im not sure

The mode is the most common number in the data set. If there are two numbers that appear frequently (in this case 69 and 73) then this data set has two modes.

The median is the middle of the set of numbers (line them up from top to bottom).

In this case it should look something like:

68 68 69 69 69 69 70 70 71 72 72 73 73 73 73 75 78

If the whole list of numbers are even, then pick the two middle numbers and find their average. If it is odd, just choose the middle most number.

Mean is the average of all numbers. If you have 5 numbers, add them all up and divide by 5. If you have 10 numbers, add them all up and divide by 10.

Answer:The value of x must be 7 units.

Step-by-step explanation:

hope this helps

Answer:

35.53

Step-by-step explanation:

19.00x 87%=16.53

16.53+19.00= 35.53

Answer:

Exact Form: 6√2

Decimal Form: 8.485

Answer:

1/9?

Step-by-step explanation:

Answer:

C.

Expla:

x²-49

x²-7²

= (x+7)(x-7)

Answer:

5d+3

Step-by-step explanation:

just as you combine regular numbers you can combine terms that have the same variable raised to the same exponent, and 7d-2d=5d. So the equation simplifies to 5d+3

Answer:

x + 14

Step-by-step explanation:

Let's break it down to key terms:

14

more (+)

a number (x)

So 14 more than a number is just adding 14 to x.

x + 14

Hope this helps :)

Answer:

262 × 39 ÷ 100 = 10218 ÷ 100 = 102.18

Step-by-step explanation:

This is the correct answer your's is wrong.

Answer:

mIHE should be 133°

Step-by-step explanation:

A line is 180°, so, if you take 47° off you're left with 133.

Giving you an answer of 133°.

Answer:

Step-by-step explanation:

It seems the translation:

R(-4, -1) → R'(-4 +5 = 1, -1 +7 = 6)

S(-6, 3) → S'(-6 + 5 = -1, 3+7 = 10)

Step-by-step explanation:

13.56 is the square root of 184

Answer:

NK

Step-by-step explanation:

Answer: 42

Step-by-step explanation:

Answer:

1. 60:80

2. 90:120

3. 120:160

Step-by-step explanation:

1. 30(2) : 40(2) = 60:80

2. 30(3) : 40(3) = 90:120

3. 30(4) : 40(4) = 120:160

Hello!!

Answer:

60:80

and

90:120

Hope this helps!!! :)

Answer:1375

Step-by-step explanation:

X= 15 is given

X squared is 15x15 = 225

1600 - 225= 1375

Answer:

Step-by-step explanation:

1600x=      

x=15 feet

1600 x 15 Ft = 24000 Ft

Answer:

ok we dont know the height of the tree

Step-by-step explanation:

Answer:

x = 20

Step-by-step explanation:

6(x-8)=72

6x-48=72

6x-48+48=72+48

6x=120

6x/6=120/6

x = 20

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

Answer: x=20

Step-by-step explanation:

Distribute the 6 to the values in the parentheses

6x - 48 = 72

Add 48 to each side

6x = 120

Divide each side by 6

x = 20

Answer:

x^6*y^24

Step-by-step explanation:

This will become:

[tex]x^6*(y^4)^6[/tex]

Next, multiply the exponents for y:

x^6 * y^24

So the answer is x^6*y^24