the total cost of 8 pens and 9 books is $30.05. if the cost of a pen is $a, and a book is .90 MORE expensive. find A. Give your answer in two decimal places.

Answers

Answer 1

Answer:

2 Answers By Expert Tutors ... Let's set x = cost of books and y = cost of pens. ... In algebra, this can be written as x + y = 18. ... Using x and y, we get 1 book and 2 pens costs $21, or x + 2y = 21 ... The pen must cost $3 because we are adding $3 to the total when we ... Please provide a valid phone number.

Step-by-step explanation:

Answer 2
A= 2.74375 or just 3
Books= $8.10
Pens= 3 or 2.7475

Related Questions

Can you help me? I don’t know how to do these. Here are the instructions:

Write an equation for the line that goes through the points that are listed in the tables.

Answers

8. y=x+5
9. y=-4x
10. y=1/3x
8. y = x + 5
9. y = -4x
10. y = 1/3x
Good luck

Brandi wants to participate in an after-school program. She has to choose between one art class, three dance classes, two gymnastics classes, or three sports classes. She cannot decide, so she writes the name of each class on a slip of paper and draws one slip out of a bag. What is the probability that she does not draw a dance class?
A.1/3
B.1/4
C.3/4
D.2/3

Answers

Answer:

d

Step-by-step explanation:

Answer:

D would be it

Step-by-step explanation:

Please answer quickly Ill give brainliest.

Answers

Answer:

B

Step-by-step explanation:

Answer:

B) As traffic volume increases, vehicle speed decreases.

Translate triangle PQR 4 units to the left and 2 units up.

What are the coordinates of the vertices of the image?

A. P’(-4, 7), Q’(-1, -1), and R’(-8, -1)
B. P’(4, 3), Q’(1, 5), and R’(8, 1)
C. P’(4, -7), Q’(-1, -5), and R’(-8, 1)
D. P’(-4, 3), Q’(1, 1), and R’(1, -8)

Answers

It’ll be D because to the left it’ll be negative

Answer:

Step-by-step explanation:

D

A translation moves point V(–2, 3) to V prime (negative 2, 7). Which are true statements about the translation?
The point moves two units left and four units up.
The transformation rule is (x, y) right-arrow (x + 0, y + 4).
The transformation is a vertical translation.
The image is four units to the left of the pre-image.
The translation can be described as (x, y) right-arrow (x minus 2, y + 7).

Answers

Answer:

The transformation rule is (x, y) right-arrow (x + 0, y + 4) ⇒ 2nd

The transformation is a vertical translation ⇒ 3rd

basically 2,3

Step-by-step explanation:

Answer:B and C

Step-by-step explanation:

Edge 2021

Choose the symbol to make the following statement true. 4 yd. ___12 ft. A. C . =

Answers

Answer:

C. =

Step-by-step explanation:

Note the conversion for Yard to Feet.

1 yard = 3 feet.

In this case, it is given to you that there are 4 yards. Multiply 4 with 3 to get the amount of feet:

4 yd x 3 ft per yd = 12 feet per 4 yd.

12 ft. = 12 ft., ∴ 4 yd. = 12 ft.

please help and explain

Answers

Answer:

50 .

Step-by-step explanation:

The double number line shows that in 2 minutes, Pogo the dog can fetch a Frisbee 6 times.


Based on the ratio shown in the double number line, how many times will Pogo fetch the Frisbee in 4 minutes?

Answers

Answer:

12 times (double the times since we are doubling the minutes)

Step-by-step explanation:

2/6 = 4/x

Use cross multiplication

2x = 6*4

2x = 24

x = 12

Factor this expression using the Greatest Common Factor. Be sure to check your answer. 24x + 18y

Answers

Well the greatest common factor in this is 6. So divide each by 6 and you get 4y+3y, I hope this helps
24 + 18 is 42 so just add the x = 42x

2/3x + 1/6 = -3/4x +1

Answers

Answer:

5/6

Step-by-step explanation:

#CarryOnLearning

Correct me if iam wrong

the answer would be 5/6

Help me.
please.
lolz

Answers

The answer is 72.5 because you add them all up then divide 10

Answer:

I think it's 71 option D. because you cut the number that it on the number line that on there more than 2 times

A house that is built for $200,000 and then marked up 175%
cost+(cost x % of increase)

Answers

Answer:

ФΔHello wonderful personΔФ

Your answer should be:

$235,000

$200,000×0.175 = 35,000+ 200,000

Step-by-step explanation:

First answer!!!Please mark brainliest≅Have a great day!
;9 (9 ;(8 (;;6 :5 ;( ;)

what is 0.5x+1/5y-3.5x-4/5y include step by step please if possible

Answers

0.5x + 1/5y -3.5x - 4/5 y
0.5x - 3.5x + 1/5 y - 4/5 y. Regroup f/ variable
-3.0x - 3/5 y

Answer:

Step-by-step explanation:

0.5x+1/5y-3.5x-4/5y

combine like terms

-3x - 3/5y

Hi I need an answer really quick please help me
(this is actually kinda easy)

Answers

Answer:

The answer is =

B ) 4x - 6 the opinion B

The answer is B hopefully this helps you!.:;))

(4y+8) ÷6-12

which is the variable?

what is the sum?

what is the quotient?

which is the coefficient?

Answers

Answer:

variable- y  this is it can vary on what number it is

sum- 4y+8

quotient- (4y+8) / 6

coefficient- 4

simplified it would be y+2-6-12

the answer to this problem is y+4

The variable, sum, quotient and coefficient in the equation 4y+8) ÷6-12 are y, 4y + 8, (4y + 8) ÷ -6 and 4 respectively.

Quotient

Quotient is the result obtained when a divisor is divided by a dividend.

Given:

(4y+8) ÷ 6 - 12

The variable is y

The sum is 4y + 8

Quotient = (4y + 8) ÷ (6 - 12)

= (4y + 8) ÷ -6

Coefficient = 4

Learn more about quotient:

https://brainly.com/question/629998

HELP QUICK IM BEING TIMED!

Answers

Answer:

6x-3=9

Step-by-step explanation:

it’s the 3rd one btw i hate delta math

A triangle is translated by using the rule (x, y) right-arrow (x minus 4, y + 1). Which describes how the figure is moved?

Answers

Answer:four units left one unit up

Step-by-step

on a Cartesian plane

x increases positively as you move along the right side of the plane

and decreases as you move along the left side of the plane.

y increases positively as you go up the plane

and decreases as you move downward the plane.

Step-by-step explanation:

Ryan is planning a party for his parents anniversary. The caterer charges a delivery fee of 14$ blue an additional 5.25$ per person. If he can spend no more than 350, how many people can he invite?

Answers

I think it’s 64

350-14=336
336/5.25=64

So ryan can invite 64 people
14+5.25X=350
64 people.

QUICKLY!! TEN POINTS!! BRAINLIEST FOR WHOEVER GETS IT RIGHT!!!

What are the coordinates of point H?


(-3,11/2)

(-11/2,3)

(11/2,3)

(3,-11/2)

Answers

Answer:

im gonna go with  3,-11/2

Step-by-step explanation:

hope it helps if not sorry im not great with math  

Answer:

the answer to h is (-1.5, 3)

Start at (10, 10). Move 5 units left and 5 units up. Where do you end up?

Answers

Answer:

(5, 15) is our new position

Step-by-step explanation:

5 units left mean -5 in the x position. 5 units up mean +5 in the y position. Adding these values get us:

(10 - 5, 10 + 5)

(5, 15)

The answer is to this question is 5,15

i need help with this question pls

Answers

Answer:

307/500

Step-by-step explanation:

Answer:

the answer is 307/500

Step-by-step explanation:

0.614=614/1000

614:5=307

1000:5=1000

PLEASE HELP ME WITH THIS MATH PROBLEM

Answers

Answer:

x= 3.3333333(repeating)

Step-by-step explanation:

hope this helps

x= 3.333333333333333333

An aquarium holds 12 liters of water.

How many aquariums can we fill with 48 liters of water?

Include fractions of aquariums, if applicable.

Answers

Answer:

1 aquarium= 12 litres , it is directly proportional.so, let the unknown quantity be x.so,

Step-by-step explanation:

12/1=48/x

12*x=48

x=48/12

=4Ans.

Stay Safe.

You need 4 aquariums since 12x4 = 48

Lucy paid $45 for a new sweater that was on sale. It was on sale for 25% off the original price. How much was the original price of the sweater?

Answers

Answer:

the answer to the problem is 60

60 is the answer! Hope you had a good day!

Finding Distances from the Mean
A 2-column table with 5 rows. Column 1 is labeled Robin's Scores with entries 99, 108, 102, 107, 119. Column 2 is labeled Distance from the Mean with entries 8, 1, x, y, z.

The mean of Robin’s scores was 107. Complete the chart to find the absolute distances from the mean for each of Robin’s scores.
ANSWER BELOW HERE
x = 5
y = 0
z = 12

Answers

X=5 Y=0 Z=13 according to you

Answer:

1=B 2=B 3=D

Step-by-step explanation:

took the assignment

please help will mark brainliest

Answers

Answer:

B

Step-by-step explanation:

B) The perimeter of quadrilateral

Help me. PLEASE!

The Empire State Building in New York City is 1250 feet tall. It took 30,000 workers only 1 year and 45 days to build, which is a record for a skyscraper. On a scale model of the building, the height is 25 inches.

What is the scale of the Empire State Building model?
a.
1 inch = 50 feet
c.
1 inch = 48 feet
b.
1 inch = 62.5 feet
d.
1 inch = 47 feet


Please select the best answer from the choices provided

(i have a quiz and im gonna fail if i cant ask questions...)

Answers

Answer:

i think a) , 50 feet

Step-by-step explanation:

only because 50 is a multiple of 25

sorry if this aint the answer

Answer: A. 1 inch=50 feet

Step-by-step explanation:

1250 feet = 25 inches

divide by 25

50 feet = 1 inch

done

covert 6.99 x 10^7 to standard form

Answers

Answer:

69900000 should be the answer

Step-by-step explanation:

The answer is 69900000

PLEASEE SHOW WORK ON ALL (except #3 but also answer :D) 10 POINTS EACH QUESTION SO 50 POINTS + BRAINLY

Answers

Grade level is this??

The double number line shows that in 3 seconds an ostrich can run 63 meters.

Based on the ratio shown in the double number line, how far can an ostrich run in 5 seconds?

Answers

5 seconds for 105 meters
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