Ms. Luna ordered 10 paperback books for her class. The books
cost $8 each and shipping is $5. The expression 8n +5
represents the total cost for n books ordered. How much
was Ms. Luna's order?

Answer:

5696 cookies

Step-by-step explanation:

You just need to multiply 178 and 32.

Answer:

5696

Step-by-step explanation:

you just have  to multiply 178 by 32

Answer:

True

Step-by-step explanation:

Answer: false

Step-by-step explanation:

Answer:

[tex]Selling\ Price = 12b(1.55)[/tex]

Step-by-step explanation:

Given

[tex]Cost\ Price = \$12[/tex]

[tex]Selling\ Price = 55\%\ more[/tex]

Required

Write an expression for the selling price for b birdbaths

This selling price for 1 birdbath is calculated as:

[tex]Selling\ Price = Cost\ Price + 55\% * Cost\ Price[/tex]

Substitute 12 for Cost Price

[tex]Selling\ Price = 12 + 55\% * 12[/tex]

Factorize:

[tex]Selling\ Price = 12(1 + 55\%)[/tex]

Express percentage as decimal

[tex]Selling\ Price = 12(1 + 0.55)[/tex]

[tex]Selling\ Price = 12(1.55)[/tex]

For b birdbaths, the selling price is:

[tex]Selling\ Price = 12(1.55) * b[/tex]

[tex]Selling\ Price = 12b(1.55)[/tex]

The options are not clear; However [tex]12b(1.55)[/tex] answers the question.

Answer:

the answer is $598

Step-by-step explanation:

299×2=598

Answer:

25

Step-by-step explanation:

700/7=100,  75% of 100 is 75 pages and 100-75=25 so 25 pages

Answer:

I hope you understand this points are my own points

Answer:

17

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 17%/100 = 0.17 per year,

then, solving our equation

I = 1800 × 0.17 × 10 = 3060

I = $ 3,060.00

The simple interest accumulated

on a principal of $ 1,800.00

at a rate of 17% per year

for 10 years is $ 3,060.00.

Answer:

e

Step-by-step explanation:

Answer:

Step-by-step explanation:

We know slope is -1/5 and contains these points (0,-2)

y=-1/5x+b

Plug in x and y with those given points.

-2=-1/5(0)+b

-2=0+b

-2=b

y=-1/5x-2

Answer:

1. Skyler's processes are incorrect. She put (3^6)^x = 9, but when working with exponential problems, both sides have to have the same base. 3 does not equal nine, so you can automatically rule out her approach.

2. Robert's processes are correct. He set both bases equal to each other and then solved for the exponents.

3. Kaitlyn is also correct, she set the bases equal to 3 and solved for the exponents.

Step-by-step explanation:

When working with exponents, the goal is to get the bases equal to each other. In this case, you could have set it equal to 9 (which Robert did) or you could have set it equal to 3 (like Kaitlyn did). But you never want the bases to be conflicting, which is what Skyler did. Just by looking at the problem and using deductive reasoning, it is likely that Robert and Kaitlyn are both correct, since they have the same answers, although they used different methods, but it is still important to look at the steps.

Skyler's one mistake was setting 3 = 9, because that is impossible. If you plug in her answer of 3/2 into x, you get a ridiculous number of 19,683 = 9, which is not possibly true. For the others, when you plug in 1/3, you get 729^(1/3) = 9, so 9=9.

Hopefully this makes sense, if not, I can try to explain it better. Thanks much & have a wonderful day.

The explanation of whether Skyler, Robert or Kaitlyn were correct/wrong and the reason from their processes is that;

1) Skyler is wrong because she didn't make the bases of both sides to be equal before equating the exponents.

2) Robert is correct because he made the bases of both sides to be the same before equating the exponents.

3) Kaitlyn is correct because she made the bases of both sides to be the same before equating the exponents.

The problem skyler wants to solve is;

729^(x) = 9

The first step is to reduce 729 to the lowest base to get; [3^(6)]^(x) = 9

Next she did was to equate 6x to 9.

When working with equality of exponents both sides ought to have the same base and so she could have converted 9 to have same base of 3 as the left hand side after which she will equate the exponents.

So skyler is wrong.

We saw that skyler didn'take both bases equal to each other but now Robert has done the correct thing by having;

9^(3x) = 9¹

After which he equated the exponents to get;

3x = 1

x = 1/3

Thus; Robert is correct

Kaitlyn is also correct because she followed the same correct pattern of ensuring the bases are the same before equating their exponents.

Read more about laws of exponents at; https://brainly.com/question/11761858

Answer:

5

Step-by-step explanation:

The response is 5. The slope is always the coefficient of x in a slope-intercept equation.

Answer:

The correct answer for this equation is -5 I know this because when I went to my previous middle school my old teacher had me grade this exact question.

Step-by-step explanation:

Multiply both sides by -3

3)Domain [4 to infinity]

Range [0 to infinity]

4)Domain [ - 3 to 3]

Range [ - 2 to 4]

Answer:

A) x + y = 24 and 16x + 20y = 434

B) Item A = 11.5 hours per day

Item B = 12.5 hours per day

C) The work done in part A was to derive a system of equations based on the values given to us to produce the items where x and y denoted the number of hours per day it took to make item A and B respectively. Meanwhile, in part B, I employed the substitution method to solve the simultaneous equation derived in part A in order to get the number of hours per day used for each item.

Step-by-step explanation:

A) Let x represent the amount of hours it took to make item A and let y represent the amount of hours it took to make item B.

Thus, since the machine runs 24 hours a day, we have;

x + y = 24 - - - (eq 1)

Since the plant can make 16 of Item A and 20 of Item B per hour and it made 434 items yesterday, we have;

16x + 20y = 434 - - - (eq 2)

B) to find the time taken for each item per day, let's make x the subject in eq 1.

x = 24 - y

Put 24 - y for x in eq 2;

16(24 - y) + 20y = 434

384 - 16y + 20y = 434

4y = 434 - 384

4y = 50

y = 50/4

y = 12.5 hours

Thus, x = 24 - 12.5

x = 11.5 hours

C) The work done in part A was to derive a system of equations based on the values given to us to produce the items where x and y denoted the number of hours per day it took to make item A and B respectively. Meanwhile, in part B, I employed the substitution method to solve the simultaneous equation derived in part A in order to get the number of hours per day used for each item.

Answer:

For the parallel one the gradient will stay the same, so you just need to work out the y-intercept

3=(-12)-6+c

3=12+c

c=-9

equation for parallel line y=-6x-9

Then for perpendicular the gradient is the reciprocal

so you substitute again

3=1/6(-2)+c

3=-1/3+c

c=10/3

the equation for perpendicular is y=1/6x+10/3

Answer:

here

Step-by-step explanation:

Given that the height(h) of the plant to the nearest 1/4 of an inch is 3/4 inches = 0.75 inches.

it is obvious that the height will lie within the range

Thus,

a. The largest actual height could be 0.875 inches, while

b. The smallest actual height could be 0.625 inches

c. The percentage error is given by the formula

if we take the lowest value, for instance, as the exact, i.e. 0.625 inches, then % error = [(0.75-0.625)/0.75]*100% = 16.7%

Answer:

g=2 i hope this helps

It always helps if you rate,like and mark brainliest :D

have a good day.

Answer:

C. 90 degrees

Step-by-step explanation:

Answer:

The operation that reverses the effect of another operation. Example: Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7.

Step-by-step explanation:

Answer:

Inverse operations are opposite operations that undo each other. Addition and subtraction are inverse operations. Multiplication and division are inverse operations.

PLZ MARK AS BRAINLIEST

Answer:

-12.6

Step-by-step explanation:

Answer:

$113.28 is the total cost

Step-by-step explanation:

18%= 0.18

96 x 0.18= $17.28

96 + 17.28= $113.28

Answer:

24 cm, 21 cm

Step-by-step explanation:

Let the width of the rectangle be x cm

So, length = x + 3 cm

Perimeter of rectangle = 90

2(x + 3 + x) = 90

(2x +3) = 90/2

2x + 3 = 45

2x = 45 - 3

2x = 42

x = 42/2

x = 21 cm

x + 3 = 21 + 3 = 24 cm

Length = 24 cm

Width = 21 cm

Hence, dimensions of the rectangle are 24 cm and 21 cm.

Answer:D

$6/ 8 bottles = $0.75 per bottle for Sunny’s

$11/ 15 bottles = $0.7333 per bottle for Shruti’s

Step-by-step explanation:

Answer:

Find the number of dollars per kind of water. Then try multiplying the dollar amount per one water by 8 and 15 depends on water. If you need help try finding helpful videos or ask your parents.

Step-by-step explanation:

If you just get an answer and not understand how you got it, then you won't be able to it later and it will get worse and worse.

1)34

2)-38

3)13

4)-11

5)1

6)-1

7)-5

8)-7

Answer:

2/y^5

Step-by-step explanation:

not sure but i think its this

Answer:

1

Step-by-step explanation:

plz mark as braileist if correct

thank you

Answer:

the geatest common factor of 73 and 50 is 1

Answer:

Convert ounce to pound.

8 ounce is 0.5 lbs

x/0.5 = 17.95/1

x=8.975

Miss Lawrence spent about $8.98

Step-by-step explanation: