At a garage sale books cost $1.50 each and musical
tapes cost $2.00. John buys 4 books and 5 tapes.
How much does he spend?
Answer:
$16
Step-by-step explanation:
4 books would cost $6 and 5 tapes would be $10. Add them to get 16.
Answer:
$16.00
Step-by-step explanation:
$1.50x4=$6.00
$2.00x5=$10.00
$10.00+$6.00=$16.00
Could I please have BRAINLIEST.
Which is the slope of the line that passes through the points (−3,1) and (4,-2)?
Answer:
-3/7
Step-by-step explanation:
you need to find change in y over change in x which is -3/7
Answer:
-3/7
Step-by-step explanation:
Because I passed with 100%
For the set A=
-4
a) list the elements of A
b) find n(A)
c) Is A finite or infinite?
HELP
Answer:
a) A = {-3, -2, -1}
b) n(A) = 3
c) A is finite
Step-by-step explanation:
a) The elements of A are the integers between -4 and 0, not including those values. Those integers are -3, -2, -1, so those are the elements of set A.
A = {-3, -2, -1}
__
b) n(A) is the number of elements in set A. Obviously, there are 3:
n(A) = 3
__
c) Since n(A) is not "infinity", the set A is finite.
19-4c=17 what does c equal
Answer:
c= -9
Step-by-step explanation:
19-4c=17
+19 +19
-4c= 36
divide by -4
c= -9
Answer:
Exact Form:
c=1/2
Decimal Form:
c=0.5
Step-by-step explanation:
x^2-2x-35=0 in quadratic equation
Answer:
x = -5, 7
Step-by-step explanation:
Step 1: Write equation
x² - 2x - 35 = 0
Step 2: Solve for x
Factor: (x - 7)(x + 5) = 0
Find roots: x = -5, 7
Step 3: Check
Plug in x to verify if it's a solution.
(-5)² - 2(-5) - 35 = 0
25 + 10 - 35 = 0
35 - 35 = 0
0 = 0
7² - 2(7) - 35 = 0
49 - 14 - 35 = 0
35 - 35 = 0
0 = 0
Consider the equation below. -2(bx-5)=16 The value of x in terms of b is .
The value of x when b is 3 is .
Answer:
x=-3/b
x= -1
Step-by-step explanation:
hope it helps
One high speed Internet provider has a $39 setup fee and charges $40 per month. Another
provider has a $60 setup and charges $30 per month. In how many months will the cost be the
same?
Answer:
2.1 months
Step-by-step explanation:
Let x represent the number of months
Set up expressions to represent the cost of each Internet provider
40x + 39 will represent the first one
30x + 60 will represent the other
Set these equal to each other and solve for x:
40x + 39 = 30x + 60
10x + 39 = 60
10x = 21
x = 2.1
So, the cost will be the same in 2.1 months
Which of the following is the graph of y = StartRoot negative x minus 3 EndRoot? On a coordinate plane, an absolute value curve opens up and to the right in quadrant 4. It starts at x = 3. On a coordinate plane, an absolute value curve opens down and to the left in quadrants 1 and 2. It starts at x = 3. On a coordinate plane, an absolute value curve opens down and to the left in quadrant 2. It starts at x = negative 3. On a coordinate plane, an absolute value curve opens up and to the right in quadrants 3 and 4. It starts at x = negative 3.
Answer:
B actually
Step-by-step explanation:
Answer: the second one
Step-by-step explanation:
URGENT !
Solve.
-3p + 20 = 14
p =
p=2
Step-by-step explanation:
-3p=14-20
-3p=-6
p=2
Which subtraction equation does the number line model show?
Answer:
Yes, C is the correct answer
Step-by-step explanation:
Just look where the red arrow starts and where the blue arrows ends
Please help me!!!!!!!
Answer:
544 units²
Step-by-step explanation:
The surface area is the sum of the areas of the three rectangular faces and the two triangular bases.
SA = 10×14 +10×14 +12×14 + 2(1/2)(12)(8)
= 14×(10+10+12) +12×8
= 448 +96
= 544 . . . . square units
_____
The area of a rectangle is the product of its dimensions:
A = LW
The area of a triangle is half the product of its base and height:
A = (1/2)bh
Here, both triangles have the same area, so we multiplied the area of one of them by 2 to get the area of both of them.
Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.
In how many ways can the traveler visit all three places in one day?
Select one:
a. 120
b. 60
c. 15
d. 30
X+136 x+56
Solve for x
Answer:
x=-56/137
Step-by-step explanation:
x+136x+56=0
=137x+56=0
=137x= -56
=137x/137= -56/137
What is the value of x?
4. = 50-12
Enter your answer in the box.
x =
Answer:
X=12
Step-by-step explanation:
how do you Simplify -38=7+9x
Answer : -5
Step by Step Explanation:
You first combine like terms which is -38 and 7, so subtract the 7 from the right and add it to -38.
That will give you 45. Then divide 9x and -45 by 9. That will give you -5
Answer:
Step-by-step explanation:
The perimeter and area of a rectangle with a length of 10 have the same numerical value. What is the width of the rectangle?
Answer:
b=2.5
Step-by-step explanation:
We know that,
Area of a rectangle= Length X Breadth
Perimeter of a rectangle= 2( Length + Breadth)
From the provided information we get that,
Area= Perimeter
lb=2(l+b)
Substituting l=10,
10b=2(10+b)
10b=20+2b
10b-2b=20
8b=20
b=20/8
b=2.5
URGENT HOW MANY STUDENTS SPEAK SPANISH? and it isn’t 14 I tried that and it was wrong
Answer:
46 students
Step-by-step explanation:
Brainliest pls? hope it helps :)
Have a good day/night
Solve for n. 12n−10=−58 Plot the solution on the number line.
Step-by-step explanation:
12n-10= -58
+10. +10 (add to both sides)
12n. = -48
÷12. ÷12 (isolate variable)
n. = -4
Answer:
n = -4
Step-by-step explanation:
Add 10 to each side, so it now looks like this: 12n = -48Divide each side by 12 to cancel out the 12 next to n. It should now look like this: n = -4I hope this helps!
Find the sum of the reciprocals of two consecutive even integers if the larger integer is x. please answer;-;
Step-by-step explanation:
Let the larger integer be x
Hence, the smaller integer = x-2
Hence,
Reciprocal of the x= 1/x
Reciprocal of x-2= 1/ x-2
Hence. their sum=
[tex] \frac{1}{x} + \frac{1}{x - 2} \\ = \frac{x - 2 + x}{x(x - 2)} \\ = \frac{2x - 2}{ {x}^{2} - 2x} [/tex]
The sum of the reciprocals of two consecutive even integers if the larger integer is [tex]x[/tex] is [tex]\frac{2}{x}[/tex].
For two consecutive even integers, if the larger integer is [tex]x[/tex], then the smaller one is [tex]x-2[/tex].
Their reciprocals will be [tex]\frac{1}{x}[/tex] and [tex]\frac{1}{x-2}[/tex].
Now, the sum of the reciprocals is [tex]\frac{1}{x} + \frac{1}{x-2}[/tex]
[tex]= \frac{1}{x} + \frac{1}{x-2}[/tex]
[tex]= \frac{x-2+x}{x(x-2)}[/tex]
[tex]= \frac{2x-2}{x(x-2)}[/tex]
[tex]= \frac{2(x-2)}{x(x-2)}[/tex]
[tex]= \frac{2}{x}[/tex]
So, the sum of the reciprocals of two consecutive even integers if the larger integer is [tex]x[/tex] is [tex]\frac{2}{x}[/tex].
Learn more here:
https://brainly.com/question/17170234?referrer=searchResults
HELP I WILL GIVE BRAINIEST
Answer:
a
Step-by-step explanation:
you add 45 55 the take the answer that u got for adding 45 55 then take away from 180 45+55=100 180-100=80
uppose you select a random card from a standard deck of
52
cards and no jokers. If you draw a face card (king, queen, or jack), you win
$5
. If you draw an ace, you win
$20
. If you draw any other card, you lose
$2
. What is the expected profit from any one draw?
Answer:
The value is [tex] E(k) = \frac{68}{52}[/tex]
Step-by-step explanation:
From the question we are told that
The total number of cards is [tex]n = 52[/tex]
Let k represent the winnings and loss when any card is drawn
So k = $5 when a faced card is drawn
So k= $ 20 when an Ace card is drawn
So g = - $2 when any other card is drawn
Generally in a standard deck of card
The number of Ace is 4
The number of queen is 4
The number of jack is 4
Therefore the number off faced cards is
R = 4 + 4 + 4 = 12
Generally the number of other cards is
Y = n - R
=> Y = 52 - 12
=> Y = 36
Generally the probability of drawing a faced card is mathematically represented as
[tex]P(k = 5) = \frac{ 12}{52}[/tex]
Generally the probability of drawing a Ace card is mathematically represented as
[tex]P(k = 20) = \frac{ 20}{52}[/tex]
Generally the probability of drawing a other card is mathematically represented as
[tex]P(k = -2) = \frac{ 36}{52}[/tex]
Generally the expected profit from any one draw is mathematically represented as
[tex]E(k) = \sum k_i * P(K = k)[/tex]
=> [tex]E(k) = 5 * \frac{ 12}{52} + 20\frac{ 20}{52} + [- 2 * \frac{ 36}{52}][/tex]
=> [tex] E(k) = \frac{68}{52}[/tex]
Find the mathematical expression that describes the pattern 3, 7, 11, 15...
Answer:
a+(n−1)d
hope this helps
Round 644.4 to the nearest one.
19. 5x + 2x - 3 = -3x + 10x
Answer: No solution
Step-by-step explanation:
Combine the like terms in the equation. 5x+2x=7x and -3x+10x=7x. The equation simplifies to 7x - 3= 7x.Cancel out the 7's on both sides. -3 = 0, therefore, there is no solution.wich equation is true 9x8=8x9 4x8=(2x4)+(2x4)6x5=(6x1)+(5x1)7x6=6+7
Answer:9x8=8x9
Step-by-step explanation:
Beacause if you multiply it is the same forwards and backwards
Answer:
9x8=8x9
by-step explanation:
what is the value of 9 1/2
Answer:
19\2
Step-by-step explanation:
the sum of 1/2 and the square root of 4 is rational or irrational
Answer: the square root of 4 is a real number while 1/2 is a rational number
Step-by-step explanation:
SOME PLSSS HELP MEEE NOW PLS
SHOW STEPS PLS
Answer:
82/99
Step-by-step explanation:
1. Notice the length of the repeating pattern.
the pattern is 82 repeating, a 2-digit pattern
2. Notice where the repeating pattern starts, relative to the decimal point.
the repeating starts at the decimal point
3. If the repeating starts at the decimal point, use a pattern of repeating 9s of the same length as the denominator of the fraction
2 nines are the denominator: 82/99
4. Reduce the fraction if possible
this fraction cannot be reduced
As a simplified fraction, 0.828282... = 82/99
_____
Comment on more complicated cases
If the repeat does not start at the decimal point, or if the number contains an integer part, then the numerator of the fraction is found in a slightly different way. Let n be the number of repeating digits of the number x. The fraction is then ...
(10^n·x -x)/(10^n -1)
Example:
1.2345345345... a number with a 3-digit repeat not starting at the decimal point
(1234.5345... -1.2345...)/(1000 -1) = 1233.3/999 = 4111/3330
The multiplication by 10^n aligns the repeating parts so they cancel when you do the subtraction.
Eli’s family eats 1 3/8. Which drawing has 1 3/8 shaded
Please help
Answer:
It's b
Step-by-step explanation:
It is out of 8. Each circle has 8 sections. A full section would be 8/8 which is = to 1/1. This is because 8 divided by 8 is 1. In the second circle, three out of the 8 are shaded. This would make it 3/8. The / works as "out of". So 3 out of 8. Thus B. is 1 and 3/8
Answer:
The correct answer is B.
Step-by-step explanation:
As you can see one full circle is shaded in. This accounts for the whole number, 1, that we need. In the second image you can see a circle with 8 triangles, three of which are shaded in. This as fraction would look like 3/8.
Add up 1 + 3/8 and you get 1 and 3/8.
Thus, your answer is B.
Why is i square equals -1
Answer:
The value of i is the √-1. Once you square that the square root goes away and you are left with -1.
Step-by-step explanation:
