9. Jamie ha ahorrado $ 42 del dinero de su asignación para comprar libros. Si compra 5 libros a d dólares por libro, le quedarán 42 5d de su asignación. ¿Cuánto le queda si los libros cuestan $ 3.50 cada uno?

Answers

Answer 1

Answer:

$24.50

Step-by-step explanation:

Jamie has saved $ 42 of his allowance money to buy books. If you buy 5 books at d dollars per book, you will have 42- 5d left of your allowance. How much is left if the books cost $ 3.50 each?

We have the equation

42 - 5d = Amount of Allowance left

d = 3.50

Hence:.42 - 5 × 3.50

= $42 - 17.5

= 24.5


Related Questions

Line segements AB and CB intersect outside of the circle P as shown. What is the value of x? A.11/4 B.8 C.2 D. 9/2

Answers

They answer is A because when you solve it it will give you A

Answer:

Its 11/4

Step-by-step explanation:

13x + 15=17x-13 solve for the solution

Answers

Answer: x=7

Step-by-step explanation:

Step 1: Subtract 17x from both sides.

13x+15−17x=17x−13−17x

−4x+15=−13

Step 2: Subtract 15 from both sides.

−4x+15−15=−13−15

−4x=−28

Step 3: Divide both sides by -4.

−4x/−4 =−28/−4

x=7

help me !!!!!!!! asap

Answers

Answer:

b

Step-by-step explanation:

b



rjdkhfjfgjfkdj sndhdhhd

I need major help pleaseee

Answers

Answer:

y = 1/2x + 6

Explanation:

The 1/2x is the slope of the line, because from each point u go up 1 nd over 2. The 6 is there cuz that's the slope since that's where it crosses the y-axis.

Evaluate ∛-512 Use pencil and paper. Explain how you can check that your result is correct. Show your work.
nothing ​(Type an integer or a simplified​ fraction.)

Answers

Answer:

3√512 = 8

Step-by-step explanation:

Step 1: Find the prime factors of 512

512 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2

Step 2: Pair the factors of 512 in a group of three, such that they form cubes.

512 = (2 × 2 × 2) × (2 × 2 × 2) × (2 × 2 × 2)

512 = 23 × 23 × 23

Using the law of exponent, we get;

512 = 29 [am.an = (a)m+n]

Or

512 = (23)3 [(am)n = amn]

512 = 83

Step 3: Now, we will apply cube root on both the sides to take out the factor (in cubes) as a single term.

3√512 = 3√(83)

So, here the cube root is eliminated by the cube of 8.

Hence, 3√512 = 8

If x =2 what is 3x^3

Answers

Answer:

24 would be your answer.

Answer:

24 would be the answer! :>

Can someone help me? I beg.

Answers

It’s going to be c for sure hope this helps

i need help on number 7, it’s due at 12:00

Answers

the answer is 550.

Hope this helps!

Solve the equation y = ex for x.

Answers

Answer:

y/e=x

Step-by-step explanation:

Answer:

x = In(y)

Step-by-step explanation:

The inverse of the exponential function is the natural log function.

Someone please help at your earliest convenience I would really appreciate it.

Answers

Answer:

Step-by-step explanation:

Let the equation is, y = x² + bx + c

Here, b = Sum of the roots

And c = multiplication of the roots

Roots of the equation are (5 + 2i) and (5 - 2i).

Step 1,

Sum of the roots 'b' = (5 + 2i) + 95 - 2i)

                             b = 10

Step 2,

Multiplication of the given roots = (5 - 2i)(5 + 2i)

                                                     = 5² - (2i)²

                                                     = 25 + 4

                                                     = 29

Step 3

Therefore, equation of the quadratic function will be,

y = x² + 10x + 29

1) Laurie makes a large pot of soup. She
divides it evenly among 8 of her friends.
How much of the soup does each friend
get?

Answers

Step-by-step explanation:

1/8. 1 pot divided by 8 people is 1/8

Answer:

I think 1/8 is the answer.

Hope this answer is correct! :)


The width of the rectangle is 10 cm more than the length. The
perimeter is 120 cm. Find the length and width of the rectangle.

Answers

Answer:

The width is 35 cm.

The length is 25 cm.

Step-by-step explanation:

• The shortest side of a triangle is 8 centimeters long. The longest side is 8 cm longer than the
shortest side. The third side is 12 cm long. The perimeter is 38 cm. Find the length of the
shortest side.

Answers

The shortest side is 9, longest is 17 of the triangle IS NOT a 90 degree triangle

Answer:

9cm

Step-by-step explanation:

s + s + 8 + 12 = 38

(s + s) + (8 + 12) = 38

2s + 20 = 38.

so, we have to subtract 20 from both sides, so it will be 2s = 18.

2s/2 = 18/2. so that means, s = 9.

hope this will help you!

Silvio works at a car wash. He earns $50 per day and $12 per car washed. Silvio wants to earn at least $158 in 1 day.
Which inequality represents the number of cars (C) Silvio must wash to reach his goal?

Answers

Answer:

50+12x≥158

Step-by-step explanation:

starting with $50, adding $12 for every car washed (x), must be at least, but can be greater than, $158.

The required inequality for Silvio to earn more than $158 in one day is, $50 + 12x ≥ 158.

Given that,
Silvio works at a car wash. He earns $50 per day and $12 per car washed. Silvio wants to earn at least $158 in 1 day.
To determine the inequality represents the number of cars (C) Silvio must wash to reach his goal.

What is inequality?

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,
Let the number of cars washed by Silvio be x,
According to the question,
Silvio works at a car wash. He earns $50 per day and $12 per car washed.
Total earning of the day = $50 + 12x
Silvio wants to earn at least $158 in 1 day. So, his total earnings of the day must be greater equal to $158.
$50 + 12x ≥ 158.

Thus, the required inequality for Silvio to earn more than $158 in one day is, $50 + 12x ≥ 158.

Learn more about inequality here:

brainly.com/question/14098842

#SPJ2


Help me

(2x+30)1/2 = x + 3

Answers

the extraneous solution x=-7
the valid solution x=3

Plz HELP ME SOLVE THISS!! I will give 50 Brainly!! PER PERSON! solve this system of equations by substitution, show all work:
2b + 3s = 9.25, 3b + 4s = 13.25

Answers

Answer:

S=1.25

Step-by-step explanation:

If this is confusing pls let me know!! :) (p.s. sorry bout my handwriting lol)

A simple run down of the problem I guess is that first you need to solve one equation for either s or b. I chose the first equation to solve for b and I got b=(-3/2s)+(9.25/2). Then, the second thing you need to do is to put the answer to b in the second equation. This would be 3((-3/2s)+(9.25/2))+45 = 13.25. Then you basically solve that equation for s and you should get s=1.25. If you need to also find b you can plug s=1.25 into either of the starting equations. All done :) sorry this took long lol

Ans: The answer of your question is S=1.25

please help me asappppppppp i will give a brainlest

Answers

Answer:

No, she is wrong. Look at the coordinates on function A. They don't match up.

Jacksen has a bag with marbles. He randomly selected 1 marble at a time and recorded his results in the table shown in the image. What is the experimental probability that he will select a yellow marble on his next try

Answers

Answer:

It's c :]

Step-by-step explanation:

Answer: 11/25

Step-by-step explanation:

I got the answers at the end of a near-pod but if you need to show your work

If B =x²-7x + 4 and C=
x-9 find an expression that equals B+2C in stadard form.

Answers

Answer:

x²-5x-14

Step-by-step explanation:

(x²-7x+4)+2(x-9)

combine like terms and distribute

x²-7x+4+2x-18

x²-5x-14

seventy four point three times
five point four​

Answers

Answer:

401.22

Step-by-step explanation:

Use the figure to answer the question.

Answers

Answer:

i have a simple hack for this

Step-by-step explanation:

fyou see how theres a line? yes so act as if the 2 parts arent together just do 8x5x22 which equals 880 then do 8x5x12 which equals 480 then we add them together because the shapes were originally together so we do 880+480 which gets us to 1360

Help I will make u a brainlist Ik it’s not a the las tone so help!

Answers

Its the last one because 10 can go into 5 and 4 can go into 8 and 1 can go into 2 and so on

mich buys bicycles for $38 and sells them for $95. What is the percent of increase in the price?

Answers

Answer:

57 dollars

Step-by-step explanation:

Need help now send me a notice if u get it

Answers

Answer:

1/4

2/8

.25

1:4

Step-by-step explanation:

Answer: 1/4 (Simplified) and 16/64

Step-by-step explanation:

8/32 can be written as 1/4 (Simplified) and 16/64 (Larger Ratio)

In percentage = 0.25


What is the volume (in terms of pi) for a cylinder with a radius of 3 inches
and height of 9 inches?
NEED HELP!!!!

Answers

Answer:

254.469

Step-by-step explanation:

Formula for Volume of Cylinder:   V=πr²h

Plz help me thanks to who ever answers

Answers

Answer:

38 quarts

Step-by-step explanation:

how can I solve this?​

Answers

Answer:

[tex] \tan(C) = \frac {55}{48}[/tex]

Step-by-step explanation:

By Pythagoras Theorem:

[tex]BC = \sqrt{ {73}^{2} - {55}^{2} } \\ \\ = \sqrt{2304} \\ \\ = 48 \\ \\ \tan(C) = \frac {BD}{BC} \\ \\ \tan(C) = \frac {55}{48} \\ \\ [/tex]

Daniel solves the equation 3(x + 1) - 5 = 3x - 2 and states that it has no solution Is he correct? Explain why or why not

Answers

Any answer is correct because when you plug in any number you'll get the same thing on both sides
3x-2=3x-2 (any value can be plugged in for x)

Solve x^2-4=0 please solve step by step

Answers

Answer:

x=2 or x=−2

Step-by-step explanation:

Let's solve your equation step-by-step.

x2−4=0

Step 1: Add 4 to both sides.

x2−4+4=0+4

x2=4

Step 2: Take square root.

x=±√4

x=2 or x=−2

What is the probability of spinning a odd number, flipping heads, then spinning a 3?

Answers

Answer:

Probability of spinning a odd number is 5/9

I don't know about flipping head

Probability of spinning a 3 is 1/9

Answer:   0

=========================================================

Explanation:

The sample space of the spinner is {1,2,3,4,5,6,7,8,9} which represents all the possible outcomes. We can only pick one of those values. Of that list, the subset {1,3,5,7,9} represents all the odd numbers. This is the event space because we want to land on an odd number.

There are 5 items in the event space and 9 items in the sample space. The probability of getting an odd number is 5/9.

The probability of flipping heads is 1/2 since we have one side we want (heads) out of two sides total.

Lastly, the probability of landing on a '3' is 1/9 because there's only one '3' out of 9 values total.

---------

We'll multiply those fractions to get the final answer. This works because each event is independent of one another.

(5/9)*(1/2)*(1/9) = (5*1*1)/(9*2*9) = 5/162

Now use your calculator to find that: 5/162 = 0.030864 approximately which rounds to 0.0 or just 0 when rounding to the nearest tenth.

Unfortunately this is one case where rounding will creates a misleading result. The true probability isn't 0 because the events described are possible. The probability is just really small.

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