mr oliver purchased 55 baseball cards for $11 A. find the unit rate per dollar B. find the unit rate per card

Use the first and lay set of x,y values.

Rate of change is change in y/ change in x:

7-10 / 5- -1 = -3/6 = -1/2

The answer is A.-1/2

Answer:

16

Step-by-step explanation:

Answer:

40 percent is 10 so It cost 35.

Step-by-step explanation:

Answer:

12.25pi or 78.5

Step-by-step explanation:

tell me if u need an explanation

Answer:

12.8

Step-by-step explanation:

they can dig at a rate of 1.25

Answer:

Below in bold.

Step-by-step explanation:

The total sum of the numbers in A is 124 and the sum of the numbers in B = 56

Let x be the number passed from A to B, then from the given information:

124 - x = 56 + x + 20

124 - 56 - 20 = 2x

48 = 2x

x = 24.

a) So the number passed is 24.

b) Sum of numbers in B = 56 + 24 = 80.

c) Let pencil cost x then pen will cost 1.1 - x.

Now the pen costs 1 pound more than the pencil

so  1.1 - x - x = 1

-2x = -0.1

x = 0.05.

So the pen costs 1.1 - 0.05 = £1.05.

Answer:

Slope: y = [tex]-\frac{2}{5}[/tex]x + 4

Y-intercept: (0,4)

Step-by-step explanation:

This is the answer because:

1) y = mx + b, m = slope and b = y-intercept

2) To find the y-intercept, substitute in 0 for x and solve for y.

Answer:

the first option.

Step-by-step explanation:

correct me if I'm wrong, I don't know if this is right, but that's a method I think you use

Answer: C: 2(n+5)

Step-by-step explanation:

Answer:

Step-by-step explanation:

For finding we go from

Back to front that is,

First,

Sum of a number and 5 that is = n + 5

Then,

Twice of their sum that is = 2(n+5)

Hence,

Option C that is 2(n+5) (Ans)

Answer:

The answer is b = 1/2

Step-by-step explanation:

1) Use this rule: a/b × c = ac/b.

[tex]5 = \frac{3 \times 3}{2} + b[/tex]

2) Simplify 3 × 3 to 9.

[tex]5 = \frac{9}{2} + b[/tex]

3) Subtract 9/2 from both sides.

[tex]5 - \frac{9}{2} = b[/tex]

4) Simplify 5 - 9/2 to 1/2.

[tex] \frac{1}{2} = b[/tex]

5) Switch sides.

[tex]b = \frac{1}{2} [/tex]

Therefor, the answer is b = 1/2.

Answer: where?

Step-by-step explanation:

Answer:

What do you need help with?

Step-by-step explanation:

Answer:

In order to be considered a language, a system of communication must have vocabulary, grammar, syntax, and people who use and understand it. Mathematics meets this definition of a language. Linguists who don't consider math a language cite its use as a written rather than spoken form of communication

Answer:

C, D, F

Step-by-step explanation:

She walked 12 miles. Then she walked 1/4 that distance. "That distance" is 12 miles.

That means she walked 12 miles plus 1/4 of 12 miles.

She walked

12 + 1/4 * 12

You can factor out 12 from the expression above, and write it as

12(1 + 1/4)

Now you can do the addition in parentheses.

12(1 + 1/4) = 12(4/4 + 1/4) = 12(5/4)

Answer:

C, D, F

Answer:

12 + 1/4 x 12, 12 x 5/4, and 12 (1 + 1/4)

Step-by-step explanation:

To solve this, you need to add 1/4 of 12 to 12. 1/4 of 12 is 3, and 12 + 3 is 15. All of these equations are equal to 15, therefore they are all correct.

1/4 x 12 = 3 + 12 = 15

12 x 5/4 = 60/4 = 15

1 + 1/4 = 5/4

5/4 x 12 = 60/4 = 15

Answer:

y is 8

Step-by-step explanation:

First u do 13y-9y=4y

so you then have 4y-5=27

then you plus 5 to 27

u then have 4y=32

then divide 32 by 4

so you will get y=8

Answer:

6√3

Step-by-step explanation:

6^2+x^2=12^2

36+x^2=144

-36          -36

x^2=108

x=6√3

Answer:

y>2x+5

Step-by-step explanation:

find the y-intercept = 5

slope is 2

the shading is above the intercept and is dotted so that means > and not equal to

Answer:

c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Step-by-step explanation:

The angles are vertical because they are opposite to each other

75 = 4x -25 vertical angles

100 = 4x

x= 25° Algebra

Answer:

X = 25 degrees

Definitions:

Vertical: Opposite angles/angles that share a common side.

Adjacent: Congruent meaning same measure.

Step-by-step explanation:

This equation would be vertical because they are opposite from eachother:

Our equation would look like this:

75 = 4x - 25

Then add 75 and 25 to get 100:

75 + 25 = 100

Now our equation would look like this:

100 = 4x

Lastly, divide 100 with 4:

100 ÷ 4 = 100

Side note: 25 x 4 = 100

Your answer would be x = 25 degrees.

            Hope this helps!

      ~Hocus Pocus

Answer:

d

Step-by-step explanation:

Answer:

a- (-38, 25)

b - (-21,38)

c - (-21,38)

d - (-25,-38)

Step-by-step explanation:

Noah is right because 75% of $10 would be 7.5 and 25% of $30 is 7.5. This would mean that they both have equal amounts of money

Answer:

[tex] x = 1, \: \: x = \frac{2}{3} [/tex]

Step-by-step explanation:

[tex] \sqrt{3x + 1} - \sqrt{2 - x} = \sqrt{2x - 1} \\ \\ squaring \: both \: sides \\ \\ ( \sqrt{3x + 1} - \sqrt{2 - x})^{2} = ( \sqrt{2x - 1} ) ^{2} \\ \\ 3x + 1 + 2 - x - 2( \sqrt{3x + 1} ) ( \sqrt{2 - x} ) = 2x - 1 \\ \\ \cancel{ 2x} + 3 - 2( \sqrt{3x + 1} ) ( \sqrt{2 - x} ) = \cancel{ 2x} - 1 \\ \\ 3 - 2( \sqrt{3x + 1} ) ( \sqrt{2 - x} ) = - 1 \\ \\ - 2( \sqrt{3x + 1} ) ( \sqrt{2 - x} ) = - 1 - 3 \\ \\ - 2( \sqrt{3x + 1} ) ( \sqrt{2 - x} ) = - 4 \\ \\ ( \sqrt{3x + 1} ) ( \sqrt{2 - x} ) = 2 \\ \\ squaring \: both \: sides \: again \\ { [( \sqrt{3x + 1} ) ( \sqrt{2 - x} )] }^{2} = {2}^{2} \\ \\ (3x + 1)(2 - x) = 4 \\ \\ 6x - 3 {x}^{2} + 2 - x = 4 \\ \\ - 3 {x}^{2} + 5x - 2 = 0 \\ \\ 3 {x}^{2} - 5x + 2 = 0 \\ \\ 3 {x}^{2} - 3x - 2x + 2 = 0 \\ \\ 3x(x - 1) - 2(x - 1) = 0 \\ \\ (x - 1)(3x - 2) = 0 \\ \\ x - 1 = 0, \: \: 3x - 2 = 0 \\ \\ x = 1, \: \: x = \frac{2}{3} [/tex]

Answer:

I think you add them together

27 + 36 = 63

Step-by-step explanation:

HOPE THIS HELPS !!!!!!!!!!!!!!!!!

Answer:

I think the answer for this question is B

Answer:

12ab  

6x+7y

Step-by-step explanation: hope I helped

Answer:

( a ) 3a ( 4 ) b

= 12ab

( b )Let's simplify step-by-step.

5x + 9y + x − 2y

= 5x + 9y + x + − 2y

Combine Like Terms:

= 5x + 9y + x + −2y

= ( 5x + x ) + ( 9y + −2y )

= 6x + 7y

Hope it helps

Please mark me as the brainliest

Thank you