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3 years ago

Joan had $126 to spend on 9 books after buying them she had $18 how much did each book cost

Mathematics

2 answers:

WARRIOR [948]3 years ago

8 0

12$ what you do is subtract 18 then divide 108 by 9<span />

LenKa [72]3 years ago

8 0

12 because 126 subtract 18 is 108 divide that by 9 is 12

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A square with side lengths of 3 cm is reflected vertically over a horizontal line of reflection that is 2 cm below the bottom ed

oksian1 [2.3K]

Answer:

a) 4 cm

b) 5 cm

c) 10 cm

Step-by-step explanation:

The side lengths of the reflected square are equal to the original, and the distance from the axis(2) also remains the same. From there, it is just addition.

Hope it helps <3

5 0

3 years ago

Help with this one please

jekas [21]

Answer:

v= 2

Step-by-step explanation:

$6(5 - 8v) + 12 = -54\\30 - 48v + 12 = -54\\- 48v = - 54 - 30 - 12\\-48v = -96$

$v = \frac{-96}{-48} = 2$

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3 years ago

Read 2 more answers

Renting video games from Store S costs $2.50 per game plus a monthly fee of $5.00. Renting video games from Store T costs $5.00

tigry1 [53]

Answer: A. 2.5v+5v < 5v

Step-by-step explanation:

represents the piece of information which states that renting videos is $2.50 per game and the 2.5 is multiplied by the number of games v. Five is added as a monthly fee therefore the left side of the equation should be 2.5v+5.

For store T:

There is no monthly fee and so the renting fee of $5 per game is represented as 5v.

In conclusion, if the inequality sign in the middle is less than (<) then the left hand side of the inequality sign should represent store S and the right hand side should represent store T in order to answer the question. This makes option A the only correct option.

6 0

3 years ago

Drag the correct graph of each equation into the space next to that equation to show how the output y-values change with changes

Jlenok [28]

Answer:

see the explanation and the attached figure

Step-by-step explanation:

Part 1) Linear

we have

$y=x+3$

This is the equation of the line in slope intercept form

The slope is positive and equal to m=1

The y-intercept is b=3

As the value of x increases the value of y increases too

As the value of x decreases the value of y decreases too

therefore

The graph in the attached figure

Part 2) Quadratic function

we have

$y=3x^2$

This is a vertical parabola open upward with the vertex at origin

As the value of x increases the value of y increases too

As the value of x decreases the value of y increases

therefore

The graph in the attached figure

Part 3) Exponential function

we have

$y=3^x$

This is a exponential growth function

As the value of x increases the value of y increases too

As the value of x decreases the value of y decreases too

The initial value or y-intercept is 3

therefore

The graph in the attached figure

8 0

3 years ago

Benito wrote the equations shown about the figure. Explain Benito’s errors.

Whitepunk [10]

Answer:

Benito's error was stating that the correspongind sides and angles are equal (=) instead of stating that they are congurent (≅).

Explanation:

In geometry two different figures (segments, angles, polygons ,...) are not said to be equal but congruent.

Congruent means that they have the same measure but not that they are equal in other senses.

The use of equal is applied to numbers or variables),so you can tell x = 2, 3 = 3, A = πr², but you should not say segment AB is equal to segment BC. Instead you say segment AB ≅ segment BC, which is segment AB is congruent to segment BC.

Of course, you still can use the word equal (symbol =) if you state that you are talking about measures.

This also can help you

Correct: segment AB ≅ segment BC

Correct: legth of segment AB = length of segment BC

Incorrect: segment AB = segment BC

Segment AB and segment BC are not equal because they are two different segments. They are congruent because they have the same length.

Note: the bars shown over the letters AB, BC, AD, DC, mean segment.

6 0

4 years ago