3) Solve these problems that have more than one answer.
A) Mary read 3 times the amount of books as Carey over the summer. Carey read twice as
many books as Barry. If the students read 405 books combined, how many more books did
Mary read than Barry?
----


Answers

Answer 1

Answer:

225

Step-by-step explanation:

Mary = 3x (3 times Carey)

Carey = x

Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)

3x + x + x/2 = 405

4x + x/2 = 405

8x/2 + x/2 (treat these as fractions) = 405

9x/2 = 405

9x = 810 (cross multiply)

x = 90

Mary = 3(90)      270

Carey =              90

Barry = 90/2      45

Mary - Barry

270 - 45 = 225

Hope this helps! :)

Answer 2
the answer should be 225

Related Questions

Given the line below.

Answers

y2-y1/x2-x1 this is the formula
Excuse but how do you ask others for help because I really need help with this right now

Does the expression 30 + (-23) represent the temperature at night?

Answers

It could, but it would be very cold.
that seems like its very cold.

Help me Guess just help please

Answers

you would try all becauseyou all try you are intilligent mare than other

Don’t guess you got this!

Select all ratios equivalent to 3:6.

Answers

Step-by-step explanation:

3:6=3/6=1/2

28:36=28/36=7/8

4:9=4/9

8:16=8/16=1/2

Hence, 8:16 is equivalent to 3:6.

I hope it helped U

stay safe stay happy

Answer:

3:6=3/6=1/2

28:36=28/36=7/8

4:9=4/9

8:16=8/16=1/2

Step-by-step explanation:

A car factory made 8 cars with a sunroof and 18 cars without a sunroof what is the ratio of the number of cars without a sunroof to the total number of cars?

Answers

Answer:

No of cars without sunroof=18

Total no of cars=18+8=26

Now,the ratio of cars without sunroof to total no of cars=18÷26

= 9÷13

18/26 is the ratio of cars without sunroofs to total number of cars . However you can reduce this ratio to 9/13
Did your teacher what answer is simplest form? If so put 9/13
If she just wants ratio 18/26

Select all ratios equivalent to 1:2.

Answers

Answer:

10:20 and 4:8 I think .........

Answer:

The answer is the last 2

Step-by-step explanation:

10:20 can simplify to 1:2. 4:8 can also simplify to 1:2. 24:12 simplifies to 2:1, so that isn't the same.

If this helped, please mark me as brainliest. Thank you! ;)

Find the unit rate.
10 minutes for 2 songs
=
minutes per song

Answers

Hi ;-)

10 minutes for 2 songs = 5 minutes per song

10 : 2 = 5

Answer:

5

Not to sure if it's correct

Step-by-step explanation:

10 ÷2= 5

I WILL MARK BRAINLIEST! Graph each coordinate pair on the graph and then indicate which quadrant or axis the point lies on.

Answers

Answer:

Shown in order of table.

quadrant 3

quadrant 3

quadrant 2

quadrant 2  

quadrant 4  

quadrant 1  

quadrant 4  

quadrant 3

Step-by-step explanation:

The quadrants left to right on an x and y standard form graph are

quadrant 2 , then quadrant 1

quadrant 3   then quadrant 4

On an xyz graph they do not change the z line becomes y line and diagonal acending axes becomes y in example.

please help, thank u :)

Answers

Answer:

answer is 4√10x^2

Step-by-step explanation:

4√10x^2

The Answer Is 4√10x^2

Find the unit rate.
56 newspapers in 2 piles =
newspapers per pile

Answers

Answer: The answer is 28 per pile

28 newspapers per pile 56 divide by 2 is 28.

I WILL MARK AS BRAINLIEST! Find the area and perimeter of the following figures

Answers

Step-by-step explanation:

it is really not complicated. we only need to type the numbers into the calculator.

so, what's the problem ? you don't know what a perimeter is ? it is the circumference, the total way you have to go when waking all around the figure.

you don't know the formulas for the areas of specific figures ?

let's start :

a)

the area of a rectangle is length×width. I hope you know this at least since first grade.

the important thing here is : the result is in² and not just in. it means an area counts the little squares that fill that area.

A = 30×8 = 240 in²

the perimeter, as explained, is the whole way around it. so, in the end, as you can easily see, we would have to go 2 times the long side and 2 times the short side.

the result is in (just a length, a distance not an area, not a cube, ...).

P = 2×30 + 2×8 = 60 + 16 = 76 in

b)

the area of a triangle is

baseline × height / 2

in this case (a right-angled triangle) we can assume one of the sides enclosing the 90 degree angle as baseline and the other as height (since there is already a 90 degree angle between them).

and again, the result is ft². we could express it also e.g. as in², but since the basic measures are in ft, it makes it better understandable to use ft².

A = 12×5/2 = 6×5 = 30 ft²

the perimeter is even easier than for the rectangle, as we have one side less to count.

and as before, we stay with ft.

P = 12 + 13 + 5 = 30 ft

c)

this is the only more special case.

but it is still easy.

the area is baseline × height.

and our unit of measurement here is cm, so the result will be cm².

A = 10×2 = 20 cm²

the perimeter is the same principle as with a regular rectangle, as the angles don't matter. only the side lengths matter.

so, again, while waking around it, we have to pass 2 times the long side and 2 times the short side.

and the result is a length, a distance again, so, it is cm.

P = 2×10 + 2×4 = 20 + 8 = 28 cm

1. A= 240 inches squared P= 76 inches
2. A= 30 feet squared. P=30 feet
3. A= 20 cm squared P= 28 cm

-7/8 - ( -3/16 ) write your answer in simplest from

Answers

Answer:

-7/8 - ( -3/16 )

-7/8 + 3/16

Answer:

-11/16 or -0.6875

Step-by-step explanation:

-7/8-(-3/16)=

-7/8+3/16=

-11/16

or -0.6875

How far was Zane from the edge of the volcano when he started climbing?

Answers

Answer:

Hope this helps

accoding to the web "He started out 25 meters below the edge of the volcano. It takes him 6.25 seconds to reach the edge."

Answer:

25 meters below the edge; 6.25 seconds  

Step-by-step explanation:

We can represent this with a linear function in slope-intercept form.  

We know the rate of change is 4 since he climbs up at 4 meters per second.  We do not know the value of b, the y-intercept.  

This gives us  

y = 4x + b  

We know that he is 13 meters below the edge after 3 seconds.  Using -13 for y and 3 for x,  

-13 = 4(3) + b  

-13 = 12 + b  

Subtract 12 from each side:  

-13-12 = 12+b-12  

-25 = b  

This gives us the equation  

y = 4x - 25  

He started out 25 meters below the edge of the volcano.  

To find how long it took him to reach the edge, substitute 0 in for y:  

0 = 4x - 25  

Add 25 to each side:  

0+25 = 4x-25+25  

25 = 4x  

Divide both sides by 4:  

25/4 = 4x/4  

6.25 = x  

It takes him 6.25 seconds to reach the edge.

please help! I will greatly appreciate it

Answers

Answer:

(1 1/4, -3/4)

Step-by-step explanation:

The x value, it is 1 and 1/4 units to the right of 0 so its 1 1/4

The y value, it is 3/4 units below 0 so -3/4

Coordinates = (x,y) so it is (1 1/4, -3/4)

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

A

Step-by-step explanation:

Hello everyone, I have one more question. What is the formula for dividing decimals again? I reviewed this yesterday but continued to forget anyway.

Answers

Answer:

multiply the divisor by as many tens as necessary until we get a whole number, and remember to multiply the dividend by the same number of tens.

Step-by-step explanation:

This is how you do it i think

I WILL MARK AS BRAINLIEST! Simplify

Answers

a) | -21 -17| = | - 38 | = 38

b) | 39 - 26 | = | 13 | = 13

c) | -17 -79 | = | - 96 | = 96

d) | -9+25 |= | 16 | = 16

e) | -21 -61 |= | - 82 | = 82

f) | 61-74 |= | - 13 | = 13

g) | -31 -79 |= | - 110 | = 110

h) | -12 +55 | =| 43 | = 43

I hope I helped you^_^

A is 38 and b is 13 and c is 96

how do you rewrite 2^-2

Answers

Answer:

[tex]2 ^{ - 2} \\ \frac{1}{2 ^{2} } \\ ( \frac{1}{2} ) ^{2} [/tex]

I hope it helped U

stay safe stay happy

Answer:

1/2^2

Step-by-step explanation:

When you have a number to a negative power, you can rewrite it inverting it's fraction and changing the signal of the power. 2 can be wrote as a fraction like 2/1, so you have 2^-2, it's like 2^-2/1, so you invert the fraction and the signal of the power, and have 1/2^2

Please help! Greatly appreciated. Thank you!

Answers

The answer is the last one. (7,-2) (-3,6)

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the x-axis is (x, -y).

Answer: Q(7,-2), S(-3,6)

Step-by-step explanation:

Find all the angles in each of the following triangles (image
attached)

Answers

Answer:

1.

solution :

x+2x+2x=180degree(sum of angle of triangle )

5x=180degree

x=180/5

x=36

therefore, x= 36

2x=2*36

=72#

The answer is 72.

Hope that this helped!

I have a question that says: Sound is used to measure ocean depth. Sound travels 1.5 km per second through water. If it takes 3.7 seconds for a sound to reach the bottom of the ocean, how deep is the water? It is not that I can't solve the problem, I don't know the problem is asking. The only thing I know is that it multiplication. Please help me.

Answers

Hey there!

All you need to do to answer this question is to do 3.7 x 1.5 = 5.55 km. I hope this helps you out. Have a good day :).

You will need to multiply 3.7 1.5, then there’s your answer hope this helped!

Write 5/8 as a percent
A. 0.625
B. 62.5
C. 625%
D. 6.25

Answers

Question:- Write ⅝ as a percent

Answer:-

[tex] \frac{5}{8} [/tex]

For making it in percentage we need to multiple the fraction with 100

[tex] \frac{5}{8} \times 100\% \\ \frac{5}{ \cancel{8} {}^{ \: \: \: 2} } \times \cancel{100} {}^{ \: \: \: 25} \\ \frac{5 \times 25}{2} [/tex]

Now we will multiple and divide the above equation with 5 for easy solution. Or you can just divide the equation upto decimal for your answer

[tex] \frac{125}{2} \times \frac{5}{5} \\ \frac{625}{10} \\ 62.5 \: \% \: \: ans[/tex]

So your options (B) 62.5% is correct

Answer: 62.5%
Please mark brainliest

Find the number that makes the ratio equivalent to 3:2.
:24

Answers

Answer:

36:24

Step-by-step explanation:

24 divided by 2 which is 12 then 12x3 which is 36

I might be wrong but i think this is the answer.

Answer:  36 : 24

Step-by-step explanation:

3 / 2 = 12 * 3 / 12 * 2

= 36 / 24

= 36 : 24

Hope it helps !!

I need help on this question.

Answers

Answer:

answer for your question is 2) 5 and 7

Actually I took this test and the answers number three between the seven and eight

Please can you answer these Alegbra questions.
30 POINTS ON THE LINE AND BRAINLIEST
(Please answer in step by step)

Answers

A. Put these answers into your table :
5, 6.20, 7.40, 8.60, 9.80

B see pic

c yes there is a linear relationship between the letters and cost

D the equation is y=.60x+5
D = 60x+y
Hope it’s right dunno bout others T-T

please help it would mean a lot thanks ! :)
How does this graph change between (2.5, 2) and (4.5, 0.25)?

increases
decreases
or
no change

Answers

Decreases explanation the end is lower than the start
Decreases because the ending is lower then what you originally started with

Select all ratios equivalent to 14:4.

Answers

Answer:

the first option

Step-by-step explanation:

21:6=7:2

14:4=7:2

Answer:

Only option a is equivalent to the given ratio.

I hope it helped U

stay safe stay happy

cole and rose are compairing their heights. cole is 7.1 meters tall. Rose is 20 centimeters shorter than cole
what is coles height

Answers

Answer:

150 meters is your answer hun.

Can someone help me with questions 22, 23, and 24 please I’ll appreciate it!

Answers

Answer:

for 24 Q it is 1/4

Step-by-step explanation:

Its so simple!

Answer:
24=1/4 it’s simple yk
23= volume : l*w*h didn’t got don’t round your answer...

PLEASSEEE HELPPPPPPPPP I WILL GIVE BRAINLIEST

Answers

Answer:

The answer's below :)

Hope this helps <3

Translate into a phrase 2x+9

Answers

Step-by-step explanation:

2x is added with 9

OR

sum of 2x and 9.

two times a number added to 9
or
the sum of two times a number and 9
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