What's the answer to this world problem please:

Mr. See got $1675 from selling 50 thumb drives and computer keyboards. Each thumb drives cost $24 and each computer keyboard cost $49. How many computer keyboards did he sell?

Answers

Answer 1

Answer:

19 keyboards

Step-by-step explanation:

Let d = thumb drives; and k = computer keyboards

Total number of sales of thumb drives and keyboards is 50

50 = d + k

Rearranged:

d = 50 - k

Total revenue from the sale of $24 thumb drives and $49 keyboards is $1675

1675 = 24d + 49k

Sub in d = 50 - k

1675 = 24(50 - k) + 49k

1675 = 1200 - 24k + 49k

475 = 25k

k = 475/25

k = 19

(To check, d = 50 - 19 = 31)

Answer 2
The answer to this question is 10

Related Questions

CAN SOMEONE PLEASE HELP ASAP

Answers

9514 1404 393

Answer:

  D.  5

Step-by-step explanation:

The discontinuities in the tangent function are found where the argument matches π/2 +nπ for some integer n. If x has the range [0, 4], then x² has the range [0, 16]. We're looking for the number of values of n that satisfy ...

  0 ≤ π/2 +nπ ≤ 16

Dividing by π gives ...

  0 ≤ 1/2 +n ≤ 16/π

Subtracting 1/2, we have ...

  -1/2 ≤ n ≤ 4.59...

The integer values of n in this range are {0, 1, 2, 3, 4}. There are 5 of them, hence ...

  5 discontinuities in the interval

Help me work this out please (non calculator)

Answers

Answer:

[tex] - 45.5[/tex]

Step-by-step explanation:

Given that,

[tex]a = 7 \\ b = 2[/tex]

Question :

[tex] \frac{a}{b} - {a}^{b} [/tex]

Let us solve

[tex] \frac{a}{b} - {a}^{b} \\ \frac{7}{2} - {7}^{2} \\ 3.5 - 49 \\ = - 45.5[/tex]

Hope this helps you.

Let me know if you have any other questions :-)

Step-by-step explanation:

= [tex]\frac{7}{2}-7^{2}[/tex]

= [tex]\frac{7}{2}-49[/tex]

= [tex]\frac{7}{2} -\frac{98}{2}[/tex]

= [tex]\frac{-91}{2}[/tex] Or - 45.5

please give me a brainliest answer

Evaluate 4 x^3 + 4x when x = 3

Answers

Answer:120

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

Given information:

• 4x³ + 4x

• x = 3

To evaluate the expression further, plug in the given variable and simplify:

4x³ + 4x          Replace x with 3.

4(3)³ + 4(3)      PEMDAS - put 3 to the 3rd power.

4(27) + 4(3)     Use the distributive property to get rid of the parentheses.

108 + 12          Add the two values.

120

The simplification of 4x³ + 4x when x = 3 is 120.

solve pls brainliest

Answers

Answer:

a) (x + 1780)

b) -12

Step-by-step explanation:

The car corporation produced more cars this month than the month before (indicated by x). A signed number is that which indicates whether or not there has been an increase/decrease also known as negative or positive, thus the final answer is +1780

The same step applies to fahrenheit.  

What is the answer to this question?

Answers

Answer:

the answer is option 3rd

Need help on this please, What is this number in standard form?

Answers

Answer:

24,800.07

Step-by-step explanation:

-5(-3b - 2c)
show work if you want

Answers

Answer:

Two negatives equal a postive. So, 5*3 = 15b - (-5)*2 and that would equal 10c. Using the Distributive Property to multiply each side by -5.

Step-by-step explanation:

15b+10c is your answer.

Hope this helps! (:

the answer is 15b + 10c

The pool cost $65 to rent for the afternoon. You were hoping to spend less
than that. Determine which of these activities cost less than renting the pool.
The water slide cost 1 1/2 times the cost of the pool.
The water park cost 5/6 as much as the pool.
The water rides cost 6/5 as much as the pool.
The water balloon rentals cost 1/6 as much as the pool.
Which of the activities costs less than renting the pool?

Answers

Answer:

The water park and The water balloon rentals

Step-by-step explanation:

I need help please ty

Answers

Answer:

1no=61

2no=53

Step-by-step explanation:

May this help you

Evaluate the expression when e=13 and f=16.

4(19+e2)+3f

Enter your answer as a mixed number in simplest form

Answers

Answer:

1 7/18

Step-by-step explanation:

I Had Also Taken The Test And It Was 1 7/18 In Mixed Numbers.

The expression 4(19 + e2) + 3f at e = 13 and f = 16 is 804.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, we have to Evaluate the expression 4(19 + e2) + 3f when e = 13 and

f = 16 is the same as replacing the numerical values of e and f in the expression

4(19 + e2) + 3f which is,

= 4(19 + 13²) + 3×16.

= 4(19 + 169) + 48.

= 4(189) + 48.

= 756 + 48.

= 804.

learn more about numerical expressions here :

https://brainly.com/question/29199574

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Three friends divide two bags of apples equally between them. Enter the division represented by this situation as a fraction.

Answers

Answer:

3/5

Step-by-step explanation:

Answer: I would say 3 divided by 2 or it would be 3/2.

Step-by-step explanation: Hit me up if i got it right:)

PLEASE HELP REALLY QUICK I WILL REWARD BRAINLIEST PUT FULL EXPLANATION AND ANSWER TO THE QUESTION BELOW!!!!!!!!

Answers

Answer:

[tex]x = 27[/tex]

Step-by-step explanation:

[tex]36 + 90 + 2x = 180 \\ 126 + 2x = 180 \\ 2x = 180 - 126 \\ 2x = 54 \\ \\ x = \frac{54}{2} \\ \\ x = 27[/tex]

I hope I helped you^_^

[tex]\qquad\qquad\huge\underline{\boxed{\sf Answer}}[/tex]

Let's evaluate value of x ~

[tex]\qquad \tt \dashrightarrow \:36 + 90 + 2x = 180[/tex]

[ by linear pair property of straight line ]

[tex]\qquad \tt \dashrightarrow \:2x + 126 = 180[/tex]

[tex]\qquad \tt \dashrightarrow \:2x = 180 - 126[/tex]

[tex]\qquad \tt \dashrightarrow \:2x = 54[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 54 \div 2[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 27 \degree[/tex]

I hope it's easy to understand ~

What is 11/12 divided by 1/3 PLEASE HURRY

Answers

Answer:

11/4 or 2 3/4

please help me with this sum​

Answers

Solution,

1.705

2.401

3.906

4.907

5.501

6.206

7.507

8.602

9.307

10.705

Hope it helps

Please mark me brainest

and follow me to get solutions faster.

In a lottery game, a player picks 9 numbers from 1 to 46. If 8 of the 9 numbers match those drawn, the player wins second prize. What is the probability of winning this prize? Be sure to leave your answer as a reduced fraction in order to earn credit.

There is a _____
probability of winning second prize.

Answers

Answer:  [tex]\frac{37}{1,101,716,330}\\\\[/tex]

This is the same as writing 37/1101716330

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

Explanation:

Let's say the nine winning numbers are: 1,2,3,4,5,6,7,8,9

Let's further say that if we matched everything from 1 to 8, then we'll win second prize. That ninth value can be anything but 9. So we could have something like one of these examples

1,2,3,4,5,6,7,8,101,2,3,4,5,6,7,8,111,2,3,4,5,6,7,8,12

As you can see, there are 46-9 = 37 different choices we can have for that last slot. In other words, there are 37 items in the set {10,11,12,...,45,46} we can pick for that last ninth slot. Note that 46-10+1 = 37. This value will form the numerator of the answer.

------------------------------------------

Now to calculate how many ways there are to select the nine values regardless if we win or lose.

Since order doesn't matter, we use the nCr combination formula.

[tex]_{n} C _{r} = \frac{n!}{r!*(n-r)!}\\\\_{46} C _{9} = \frac{46!}{9!*(46-9)!}\\\\_{46} C _{9} = \frac{46!}{9!*37!}\\\\_{46} C _{9} = \frac{46*45*44*43*42*41*40*39*38*37!}{9!*37!}\\\\[/tex]

[tex]_{46} C _{9} = \frac{46*45*44*43*42*41*40*39*38}{9!} \ \text{ ... the ``37!'' terms cancel}\\\\_{46} C _{9} = \frac{46*45*44*43*42*41*40*39*38}{9*8*7*6*5*4*3*2*1}\\\\_{46} C _{9} = \frac{399,790,821,830,400}{362,880}\\\\_{46} C _{9} = 1,101,716,330\\\\[/tex]

There are slightly over 1 billion ways to select the nine values.

This large value is the denominator of our answer which is [tex]\frac{37}{1,101,716,330}\\\\[/tex]

The 37 up top represents the number of ways to win the second prize we're after, while the massive number in the denominator represents how many ways there are to play the game.

------------------------------------------

Notice that in the jump from step 4 to step 5, shown in the section above, we had the "37!" terms cancel out. What this means is that the prime number 37 is nowhere to be found anywhere in the factorization of 1,101,716,330

Why is this important? Because it tells us that the fraction [tex]\frac{37}{1,101,716,330}\\\\[/tex] cannot be reduced.

Side note: That fraction converts to the decimal form 0.00000003358397 approximately and that converts to the percentage form 0.000003358397%; both of which are very very small numbers. We can see that the odds are definitely stacked against the player.

Please help me out only if you know precal

Answers

Answer:

-4

Step-by-step explanation:

We are given the equation:-

[tex] \displaystyle \large{x + Cy = \frac{1}{4} }[/tex]

Since we wants to find the value of C that makes the line pass y-intercept which is -1/16.

When we talk about y-intercept, our x-value remains 0 and y-value remains any real number.

It can be expressed as (0,b) point where b is any real numbers.

What we have to do is to substitute (0,-1/16) or x = 0, y = -1/16 in the equation so we can find the value of C.

Thus:-

[tex] \displaystyle \large{x + Cy = \frac{1}{4} } \\ \displaystyle \large{0 + C( - \frac{1}{16} ) = \frac{1}{4} } \\ \displaystyle \large{ - \frac{ C}{16} = \frac{1}{4} }[/tex]

Multiply both sides by GCF.

[tex] \displaystyle \large{ - \frac{ C}{16} = \frac{1}{4} } \\ \displaystyle \large{ - \frac{ C}{16} (16)= \frac{1}{4} (16)} \\ \displaystyle \large{ - C= 4 } \\ \displaystyle \large{ C= - 4 }[/tex]

Therefore, C = -4

A race car averages 3 1/4 miles per minute how far will this race car travel in 1 hour

Answers

Answer:

195 miles

Step-by-step explanation:

take 3.25 times 60, because there are 60 minutes in an hour

What is the probability of rolling a sum of 2 on a standard pair of six-sided dice? Express your answer as a fraction or a decimal number rounded to three decimal places, if necessary

Answers

1/6 times 1/6 = 1/36

Find the volume of a right circular cone that has a height of 10.6 m and a base with a
diameter of 18.5 m. Round your answer to the nearest tenth of a cubic meter.

Answers

The volume of a right circular cone that has a height of 10.6 m and a base with a diameter of 18.5 m is,

V = 949.76cm³

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

Height of cone = 10.6 m

Diameter of cone = 18.5 m

Hence, We can solve for radius as;

= 18.5/2

= 9.25

We know that;

Volume of a right circular cone is,

V = 1/3(πr²h)

Here, r = 9.25, h = 10.6, π = 3.14,

Hence, We get;

V = 1/3(3.14)(9.25)²(10.6)

V = 1/3(3.14)(85.5625)(10.6)

V = 1/3(2847.86225)

V = 949.287417

V = 949.76cm³

Thus, The volume of a right circular cone that has a height of 10.6 m and a base with a diameter of 18.5 m is,

V = 949.76cm³

Learn more about the multiplication visit:

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Use what you learned about Pythagorean Theorem to find the height of the cylinder. Round to the nearest hundredth. (10 points)

Answers

Answer:

Step-by-step explanation:

Using the formula

c= the square root of a^2+b^2

Solving for a  

a=square root of c^2﹣b^2=

152﹣72 ≈ 13.2665

So rounded would be 13.27

Questions 16-26
Need Help ASAP!

Answers

Answer:

fjjwiddjrjefjdjdjdjdjdjdjdjdjjdjdjrjrjxbqvrdjd

A motorboat can maintain a constant speed of 47 mph relative to the water. The boat makes a trip upstream to a certain point in 51 minutes; the return trip takes 43 minutes. What is the speed of the current?

Answers

9514 1404 393

Answer:

  4 mph

Step-by-step explanation:

The ratio of speeds upstream and down is inversely proportional to the ratio of times upstream and down. If we let c represent the speed of the current, the relation can be written ...

  (47 +c)/(47 -c) = 51/43

  43(47 +c) = 51(47 -c)

  94c = 8(47) . . . . . . . . . . . add 51c -43(47)

  c = 4 . . . . . divide by 94

The speed of the current is 4 miles per hour.

Simplify
6
20
× [ 8
15
] ÷ [−3
10
]

Answers

Answer:

620 x 815 = 505300   50530 divided by {- 310}  = - 1630

Step-by-step explanation:

14 over 15 rounded to the nearest tenth

Answers

Answer:

0.9

Step-by-step explanation:

14/15 = 0.933333333  IF:

1. You first change it into a decimal by dividing the numerator by the denominator.

       14 ÷ 15

2. You will get a recurring decimal.

     0.933333333

3. The first digit after the decimal is in the position of the 'tenths'

      0.9

4. You should use only two digits after the decimal to calculate

      0.93

5. Since the number 3 is less than five, it will change into a zero and get eliminated.

            ∴ The answer will be = 0.9

I need help with number 5

Answers

Answer:

5

Step-by-step explanation:

-3a+24-9=0

-3a = -15

a = 5

Answer:

Step-by-step explanation:

solve the equation then plug in the to numbers

PLEASE HELPOO MEEEEEEE

Answers

Answer:

(7 + 3) + 2 equals 10 + 2 which equals 12

7 + (3 + 2) equals 7 + 5 which equals 12

Step-by-step explanation:

Which of the following represents this statement? 4x-7>3

Answers

Answer:

b

.................................

Answer:

Step-by-step explanation:

The answer is actually a. Hope this helps :)

How many solutions does this equation have?

9m + 8 - 3m = 4(m + 5)

Answers

Answer:

yyyg h ug guy Judy bg

Step-by-step explanation:

by HGTV byf g gu o

Exactly 1 solution

I took the test in k12 and this is the correct answer.

Good luck

Identify an equation parallel to y = 9x + 4 passes through (2, 7).​

Answers

y=9x-11 is your answer

domain and range question

Answers

Answer:

sorry I don't know

maybe other can help you

Answer:

Domain [-5,9)

Step-by-step explanation:

the domain represents the beginning and ending of the x (sorry i dont know how to explain it in english)

and -5 is closed while 9 is open

meaning that the domain of this function would be a closed parenthesis -5, 9 open parenthesis (this ia how we do it in quebec)

thus [-5,9) (i dont know if this is how u guys do it) but if [ means closed and ) means open then this is the ans if not it would be the first one

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