Mathematics High School

A store sold 38 books in 2 hours
At this rare, how many books will
it sell in 7 hours?

Answers

Answer 1

Answer:

133 Books Sold in 7 hours.

Step-by-step explanation:

38 devied by 2 is 19.

Multiply 19 by 7.

19x7= 133.

Related Questions

Help explain how you got it! Will mark brainliest!

Answers

6x - 15 = 4x + 11
2x = 26
x = 13

Answer:

i have made it in above pic hope it helps

Choose the product of (3x2 + 7)(6x2 - 4x + 5).​

Answers

Answer:

18x^4 - 12x^3 + 57x^2 - 28x +35

Step-by-step explanation:

Step-by-step explanation:

(3×2+7)(6×2-4x+5)= -52x +221

Can someone help me out

Answers

Answer:

C.

Step-by-step explanation:

c ............. anbrbrfkodlwlenrbgckodkenf

please can someone help me really fast! i need youuu please it would be a massive help :))

Answers

2c+3a=61
3c+5a=96

6c+9a=183
-6c-10a=-192
-a=-9
The cost of an adult ticket is £9
2c+27=61
c=1/2 * 34 = 17
The cost of a child ticket it £17

Which is 42.364 written with words?

Answers

FORTY-TWO AND THREE HUNDRED SIXTY-FOUR THOUSANDTHS hope this helps

HELP ASAP‼️‼️ The price for 4 pounds of ribs is $28
what is the unit rate?

Answers

Answer:

$7 per pound

Step-by-step explanation:

28/4

Please help!
And explain the answers too!

Answers

1) He worked 4 hours leaving 6 more hours for him.
rate for A alone 6 baker
rate for A & B together 4
1/a+1/b=1/x
1/6+1/b=1/4
1/b=1/4-1/6
1/b=6/24-4/24
1/b=2/24
1/b=1/12
b=12
rate for wife alone 12 hours for the remaining 6 hours
check
1/6+1/12=1/4
12/72+6/72=1/4
18/72=1/4
ok
codewa
But we want to know how long it would have taken her for the whole job not just part of it
he works twice as fast as she does so the job that takes him 10 hours alone would take her 20 hours alone.

2) jessica and cynthia work in a pet shop.
it takes jessica 6 hours to groom all the pets but cynthia needs 8 hours to groom them.
if jessica starts to groom 1 hour before cynthia joins, how long will it take them to finish?
:
let t = time it takes them to finish (C's working time)
then
t+1 = J's working time
let 1 = completed job (all pets groomed)
:
A shared work equation, each does a fraction of the job, the two fractions add up to 1
%28%28t%2B1%29%29%2F6 + t%2F8 = 1
Multiply by the least common multiple of 6 and 8, 24. cancel the denominators
4(t+1) + 3t = 24
4t + 4 + 3t = 24
4t + 3t = 24 - 4
7t = 20
t = 20/7
t = 26%2F7 hrs, which is: 2 + 6%2F7*60 = 2 hrs 51.43 min to finish the job

3) math club takes 40 minutes
science takes 50 minutes.
rate * time = quantity
quantity = 1 set up of the tables.
rate for math club is 1/40 of all the tables in 1 minute.
rate for science club is 1/50 of all the tables in 1 minute.
math club works for 10 minutes.
rate * time = quantity
1/40 * 10 = 10/40 = 1/4 of the tables are already set up by the math club.
there are 3/4 of the tables that still need to be set up.
rate * time = quantity
the rates of the math club and the science club are additive.
(1/40 + 1/50) * time = 3/4 of the tables that still need to be set up.
common denominator is 200.
(5/200 + 4/200) * time = 3/4.
9/200 * time = 3/4
time = 3/4 * 200/9 = 600 / 36 = 16 and 2/3 minutes.
total time required is 10 + 16 + 2/3 minutes = 26 + 2/3 minutes.
how to check.
10 minutes is used to do 1/4 of the tables.
16 + 2/3 minutes is used to do the remaining 3/4 of the tables.
combined rate of math and science club is 9/200 of the tables in 1 minute.
math club rate of 1/40 * 10 = 10/40 = 1/4 of the tables.
combine rate of 9/200 * (16 + 2/3) = 9/200 * 50/3 = 450/600 = 9/12 = 3/4 of the tables.
1/4 + 3/4 = 1 = all of the tables.

Help due asap .......

Answers

Answer:

C

Step-by-step explanation:

I'm only 90% sure. I did it by canceling out the ones that don't make sense.

QC can't be the same as FQ, so A and D are cut out.

QC is longer than FQ, so option B doesn't make sense.

Parson City Middle School has 1,340 students. About 38% of the students are in the seventh grade. About how many seventh-graders attend Parson City Middle School?

Answers

Answer: About 509 seventh-graders attend Parson City Middle School.

Step-by-step explanation:

Total students in the school = 1,340

About 38% of the students are in the seventh grade.

Number of students in the seventh grade = 38% of (Total students in the school)

= 0.38 x (1340)     [38%= 0.38]

= 509.2 ≈ 509

Hence, About 509 seventh-graders attend Parson City Middle School.

Somebody please help me! this is urgent!

Answers

Answer:

a. one solution

b. infinetly many solutions

c. one solution

d. no solution

Step-by-step explanation:

brainliest plz :)

The solution of equations are one solution, infinitely many solutions, one solution and no solution.

We are given that;

The four equations

Now,

To determine whether an equation has no solution, one solution, or infinitely many solutions, we can try to solve for the variable and see what happens.

Let's apply this method to each equation:

a. 8p + 1 = 4p + 2

4p + 1 = 2

Subtracting 1 from both sides, we get:

4p = 1

p = 1/4

This is a consistent result, so the equation has one solution: p = 1/4.

b. -6p + 7 = 7 - 6p

Adding 6p to both sides, we get:

7 = 7

This is an identity, so the equation has infinitely many solutions. Any value of p will satisfy the equation.

c. p + 9 = 2p - 3

Subtracting p from both sides, we get:

9 = p - 3

Adding 3 to both sides, we get:

12 = p

This is a consistent result, so the equation has one solution: p = 12.

d. 5p + 3 = 5p - 1

Subtracting 5p from both sides, we get:

3 = -1

This is a contradiction, so the equation has no solution.

Therefore, by the equation answer will be one solution, infinitely many solutions, one solution and no solution.

Learn more about equations;

https://brainly.com/question/10413253

#SPJ4

Max invested $5700 into Brandon's new business where he will earn interest on his investment. After 7 years Max's investment is worth $13300. What is the Total Return on Max's Money? ROUND YOUR ANSWER TO 1 DECIMAL PLACE. The total return is %

Answers

Answer: 133.33%

Step-by-step explanation:

Max invested $5,700 into the new business.

After 7 years this came out to be $13,300.

The total return is calculated as:

= [(Ending investment amount - Beginning investment amount) / Beginning investment amount] * 100

= [(13,300 - 5,700) / 5,700] * 100

= 133.33%

Someone pls pls answer this ill mark u brainliest

Answers

Answer:

[tex]m\angle CBD=35^{\circ}[/tex]

Step-by-step explanation:

Since there are [tex]180^{\circ}[/tex] on each side of a line and [tex]\angle ABC[/tex] is marked as a right angle, [tex]m\angle CBE=180-90=90^{\circ}[/tex].

[tex]m\angle CBE=m\angle DBE+m\angle CBD[/tex], and [tex]m\angle DBE[/tex] is given as [tex]55^{\circ}[/tex].

Therefore, we can plug in our values and solve:

[tex]90=55+m\angle CBD,\\m\angle CBD=\fbox{35^{\circ}$}[/tex].

Find the unknown sides and angles of this triangle using the Law of Cosines.
Round to the nearest hundredth.
Now, I know side C is 10.35, but I couldn't get the angles for A or B. I'm uncertain if this is a bug or what, but could someone help me out? I'd appreciate a well written explanation as well.

Answers

Answer:

side c-10.35 Angle a-50.88 Angle B-94.12

Step-by-step explanation:

I found the answers on a khan academy thing. I just took the quiz and got a 100%

A pair of jeans is on sale for 20% off. The sale price is $55.00. What is the original amount of the pair of jeans?

Answers

Answer:

$66

Step-by-step explanation:

Answer: 68.75

Step-by-step explanation:

Line segment JK is divided by point L in the ratio of 3:2. Endpoint J is at (-16, 2) and point L is at (-15, -20). What are the coordinates of endpoint K?

Answers

9514 1404 393

Answer:

  K(-14 1/3, -34 2/3)

Step-by-step explanation:

The division ratio says ...

  (L -J)/(K -L) = 3/2

  2(L -J) = 3(K -L)

  5L -2J = 3K

  K = (5L -2J)/3

  K = (5(-15, -20) -2(-16, 2))/3 = (-75+32, -100-4)/3 = (-43/3, -104/3)

  K = (-14 1/3, -34 2/3)

Translate the figure 2 units left and 4 units down. What are the coordinates of the image?



The coordinates are A′(
,
), B′(
,
), C′(
,
), and D′(
,

Answers

It’s a or c but I’m pretty sure is c hope it helps
The answer is c just answer that and you’ll get it right

which term is related to electromagnetism applies only to the magnetic force
a. non-contact
b. poles
c. protons
d. attraction
HELP quick i am on a timed test!

Answers

which term is related to electromagnetism applies only to the magnetic force?

A. non-contact

B. poles

C. protons

D. attraction

ANSWER:

B.Poles is related to electromagnetism applies only to the magnetic force

HopeItHelps you

Can someone help me?

Answers

Answer:

Its the third one

Step-by-step explanation:

Can someone help me with this

Answers

All of them specifically?

I need the answer to this can sb help

Answers

Answer:

yeah i gotchu

Step-by-step explanation:

The answer is b my guy

Please help ASAP!!!!!!!!!!!!

Answers

D. (-2, 0, 1, 3)

x-intercepts are where the line touches the horizontal line (x-axis)

What is the equation of a line that is parallel to 2x +3y = 3 and passes through the point (3, -4) ?

Answers

Answer:

2x + 3y = -6

Step-by-step explanation:

The equation of the new line will be identical to that of the given line except that the constant term will differ.

Start with the given 2x + 3y = 3 and replace x with 3 and y with -4.  We get:

2(3) + 3(-4) = C, and C = 6 - 12 = -6

The equation of the new line is therefore 2x + 3y = -6

please make x the subject for these questions

a(x-4)=b

c(7+x)=7

x/y-2 = v

v/9x = w/y

vx + w = 5

2w + vx = y

thanks ​

Answers

Answer:

x=b+4a/a

x=7-7c/c

x=y(v+2)

Answer:

That's the answer to everything

PLEASE HELP FOR NUMBERS 5 AND 6!! Thank you!

Answers

Answer:

Step-by-step explanation:

5. y=40x

6. y=2.2x

Which of these is a unit of density?
km/m
kg/m?
kg/m
kg/m

Answers

Answer: Kg/m³

Step-by-step explanation: Mass/ Volume

Part C: What is the value of z?
At a store closing, a universal discount rate
is applied to all items. The table shows the
price for three items.
O
A. $19.50
Total Price
O
B. $1.95
Discount
Original
Price
Price
(including
sales tax)
OC. $34.45
$22.50
$13.50
$14.31
O
D. $20.67
$16.20
$27.00
$32.50
у
Z

Answers

Answer:

Step-by-step explanation: I think it's D

A line includes the points (3, 7) and (2, 2). What is its equation in slope-intercept form?

Answers

Answer:

y=5x-8

Step-by-step explanation:

Graph y = -3/2x - 3.

Answers

Answer:

Step-by-step explanation:

One point can be the y-intercept. We can see that the y-intercept is (0,-3). -3 is the value of y when x = 0. The next point can be when x = 2. If we plug that in the equation, we get the point (2,-6).

Plotting these two points will graph the equation.

The graph is given below.

Some of the coordinates on the graph are (0, -3, (1, -4.5), and (2, -6).

What are coordinates in a graph?

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

y = (-3/2)x - 3

The coordinates from the given equation are:

When x = 0,

y = - 3

(0, -3)

When x = 1,

y = -3/2  - 3 = (-3 - 6)/2 = -9/2 = -4.5

(1, -4.5)

When x = 2,

y = -3 - 3 = -6

(2, -6)

Now,

The graph of the equation is given below.

Thus,

The graph is given below.

Learn more about coordinates here:

https://brainly.com/question/13118993

#SPJ2

If you spin the spinner, what is the probability of the pointer landing in the y section

Answers

Answer:

1/8

Step-by-step explanation:

Find x and y so the quadrilateral is a parallelogram.

Answers

Answer:

Summary:

The value of x = 7 The value of y = 4

Step-by-step explanation:

We know that the diagonals of a parallelogram bisect each other.

As

The parallelogram PQRS is given, so

RT = TP

Given

RT = xTP = 5x-28

plug in RT = x and TP = 5x-28 in the equation RT = TP

RT = TP

x = 5x-28

switch the sides

5x-28 = x

adding 28 in both sides

5x-28+28 = x+28

simplify

5x = x+28

subtract x from both sides

5x-x = x+28-x

4x = 28

divide boh sides by 4

4x ÷ 4 = 28  ÷ 4

simplify

x = 7

Therefore, we conclude that the value of x is: x = 7

Similarly,  

QT = TS

Given

QT = 5yTS = 2y+12

plug in QT = 5y and TS = 2y+12 in the equation QT = TS

QT = TS  

5y = 2y+12

subtract 2y from both sides

5y - 2y = 2y+12-2y

simplify

3y = 12

divide both sides by 3

3y ÷ 3 = 12 ÷ 3

simplify

y = 4

Therefore, we conclude that the value of y is: y = 7

Summary:

The value of x = 7 The value of y = 4
Other Questions
Help! Algebra! Will give Brainiest! Does this satisfy the octet rule why or why not In the figure, given x=30cm, k=200N/cm, g=10m/s. Find the mass of the object Find the value of x Convert 11/3 from an improper fraction into a mixed number how do I find the value of x in 6 / x + is equal to 9/3 Question 1 (1 point)A 30 foot ladder is leaned against a wall, and the base of the ladder is 2 feet from thebase of the wall. What is the angle of inclination of the ladder? (Round to the nearestwhole degree) A motorcycle tire with a radius of 16 inches rotates at a rate of 150 revolutions per minute (rpm).a) Find the linear speed of the tire in inches per minute.b) Find the angular speed of the tire in radians per minute. how i solve this one PARABOLA GRAPH MATH PROBLEM PLEASE HELP!! Which of these was a groundbreaking country album? what colour mixture turns purple PLSS HELP WILL MARK BRAINLIEST! Explain why the answer is correct and why the others arent. Pleaseeee What are some obstacles Reyna must overcome in order to be reunited with her mother? (1,10), (18.-10) slope whats 63/100-5/10? with an good 5th grade explanation rewrite 1/3 Barrel 2/3 hour as a unit rate A. 4 1/2 Barrels/HourB. 2 barrels/hourC. 2/9 barrel/hour D. 1/2 barrel/hour Liam has 12 red balloons and 14 blue balloons.He put all of his balloons in 2 equal groups. How many balloons are in each group? A.13 B.14 C.26 D.52 Austin Moore has been working in a factory for 28 years. He is preparing to retire. His pension is calculated on the average of his last 3 years salaries where he earned $48,592, $47,590, and $47,710. His employer will give him 1.8% of that average for each year he worked. Calculate his pension.