If the cost of 25 copies is $5.25, how many copies can be made for $18.90?
Answer:
I believe 90
Step-by-step explanation:
25÷ 5.25 =4.76
4.76×18.90= 90
hi, can someone help pls! Which of the following is a counterexample for the claim that √x^2 = x ?
a) x=1
b) x=-1
c) x=0
d) x=2
Answer:
Step-by-step explanation:
x=-1 is the counter example as ((-1)2)^(1/2)=1 and not -1.
Someone help and plz make sure it’s right :)
Answer:
A triangle‘s angles should add up to 180 and the given angles sum up to 130 so x + 58 = 50 so x = -8
Hope this helped and brainliest please
Answer:
-8
Step-by-step explanation:
-8+58=50
50+53+77=180
triangles angles should equal 180
the geometric mean of 2 numbers is 20. one of the numbers 50. what is the other
number?
Answer:
8
Step-by-step explanation:
Let x = the unknown no.
Then
[tex]\frac{50}{20} = \frac{20}{x}[/tex]
50x = 400
x = 8
If the geometric mean of two numbers is 20, one number is 50 then the other number is 8
What is geometric mean?"The geometric mean is the average rate of return of a set of values calculated using the products of the terms."
Formula to calculate geometric mean is
[tex]GM = \sqrt{x_{1}.x_{2} }[/tex]
Here,
GM = 20
[tex]x_{1}=50\\ x_{2} =?[/tex]
Substitute the values in the formula
[tex]20=\sqrt{50.x_{2} }[/tex]
Squaring on both sides
[tex]400=50(x_{2})\\ x_{2} =\frac{400}{50} \\x_{2}=8[/tex]
Hence, the other number is 8.
To learn more about Geometric Mean here
https://brainly.com/question/10668117
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for this question what does x equal?
Answer:
Hi again lol. It is complementary so it would equal to 90. The equation is 6x+1+29=90
Step-by-step explanation:
6x+1+29=90
6x+30=90
6x=60
divide both by 6
x=10
Answer: 10
Hope that helped! :)
i need the perimeter of this two asap!!
u will get the brainlezt for the best answer
Answer:
a. 44 cm b. 126 cm
Step-by-step explanation:
a. it is semi circle
perimeter is πd
22/7*14
44 cm
b. it is equilateral triangle
so perimeter is side* 3
42 *3 = 126cm
Answer:
(a) 44 cm (b) 214 cmStep-by-step explanation:
(a)
The figure perimeter it is half of a circle with a diameter d₁=14 cm and two halfs of circle with a diameter d₂=14 cm÷2=7 cm.
The length of a circle is L₀ = πd, where d is the diameter.
Therefore:
[tex]\bold{L=\frac12d_1+2\cdot\frac12d_2 = \frac12\cdot14\pi+\frac12\cdot2\cdot7\pi=14\pi\,cm\approx44\,cm}[/tex]
(b)
A full circle it is 360°, so the circle sector of 60° is [tex]\frac{60^o}{360^o}=\frac16[/tex] of the circle. So the arc of 60° is ¹/₆ of the full circle length.
The figure is an equilateral triangle and two 60°-sectors of circles with radiuses of length of the triangle's side (r=42 cm).
Its perimetr it's two radiuses, two arcs of 60° and one side of the triangle.
The length of a circle is L₀ = 2πr, where r is a radius.
Therefore:
[tex]\bold{L=2r+2\cdot\frac16\cdot 2\pi r+r=3r+\frac23\pi r}\\\\\bold{L=3\cdot42+\frac23\pi\cdot42=(126+28\pi)\,cm\approx214\,cm}[/tex]
Write an inequality for each solution set graphed below
Answer:
x[tex]\geq[/tex]6
Step-by-step explanation:
The dot is filled so it could be equal to 6 and the arrow points to the right so it could also be greater than 6 this is why we put the "equal to or greater than" sign for x
In our hall, there are 10 fans, but only 60% of them are working. Write the number of fans that are out of order?! Pls answerr I need help instantly! Thxs if u answer :))
Answer:
6
Step-by-step explanation:
There's 10 fans, so each is worth 10%
If 60% of them are not working, that means that 6 fans are not working.
10 - 6 = 4
There are 6 not working fans
and there are 4 working fans
What is the percent of decrease from 100 to 57?
Answer: %56 I think
Step-by-step explanation:
A punch bowl contained 2 liters of ginger ale, 1 liter of orange juice, and 1 liter of cranberry juice. Select all of the statements that are true. (Choose 2) 2 points The ratio of ginger ale to the entire punch bowl is 1 to 4. The ratio of orange juice to ginger ale is 2 to 1. The ratio of juices to ginger ale is 2 to 2. The ratio of the entire punch bowl to the juices is 2 to 4. The ratio of orange juice to the cranberry juice is 1 to 1.
Answer:
The ratio of juices to ginger ale is 2 to 2
The ratio of orange juice to the cranberry juice is 1 to 1
Step-by-step explanation:
Ginger ale = 2 liters
Orange juice = 1 liter
Cranberry juice = 1 liter
Total ratio = 2 + 1 + 1 = 4
The ratio of ginger ale to the entire punch bowl is 1 to 4.
Ginger ale : entire punch bowl
= 2 : 4
= 1 : 2
Not true
The ratio of orange juice to ginger ale is 2 to 1.
Orange juice : ginger ale = 1 : 2
Not true
The ratio of juices to ginger ale is 2 to 2.
juices : ginger ale = orange juice + cranberry juice : ginger ale
= 1 + 1 : 2
= 2 : 2
True
The ratio of the entire punch bowl to the juices is 2 to 4.
Entire punch bowl : juices 4 : 2
Not true
The ratio of orange juice to the cranberry juice is 1 to 1.
Orange juice : cranberry juice = 1 : 1
True
Order the numbers from least to greatest: 23%, 1/4, 0.225
Answer: 1/4, 23%,and 0.225
Step-by-step explanation:
Carl has to write a 16 page report if he has written 3/4 of his report so far how many pages has he written
Answer:
12
Step-by-step explanation:
16 divided by 4 is 4
so if he's done 3/4 of his report
he's written 12 pages so far
Answe:
I answer this question before it 12
How many miles per minute is 55 miles per hour? round your answer to the nearest hundredth.
. pls explain
Which number is an irrational number?
A.) 3.5
B.) √36
C.) √48
D.) 37/100
Answer:
the answer is c
Step-by-step explanation:
square root of 36 = 6 = 6 / 1D. 37 / 100 is already a fraction. Hence, the only number that cannot be written as a fraction is the square root of 48. The answer is C: the square root of 48 is an irrational number.
Zander uses an on-line store that sells songs for $1 each and movies for $6. He used all of his $20 allowance to buy 10 items. How many songs and how many movies did he buy?
Answer:
2 movies and 8 songs
Step-by-step explanation:
use the formula 1x + 6x = $20 and x + x = 10. so x has to equal to 10, so 1 times 8 is 8 and 6 times 2 is 12. The x’s (8 and 2) equal 10 which is what you were looking for. i don’t know if that made sense but i hope it did
Find the solution set of the inequality.
-22 > 4
Answer:
There isnt an answer to this question, because this ineqwuality is false.
Step-by-step explanation:
−22>4
−22≯4
False
What's the answer?????????
x = 1 and y = -2
as an ordered pair: (1,-2)
How many solutions does the system have?
You can use the interactive graph below to find the answer.
{
21
x
+
6
y
=
42
7
x
+
2
y
=
14
⎩
⎪
⎪
⎨
⎪
⎪
⎧
21x+6y=42
7x+2y=14
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Exactly one solution
(Choice B)
B
No solutions
(Choice C)
C
Infinitely many solutions
Answer:
wait ok
Step-by-step explanation:
Answer:
C. Infinitely Many Solutions.
Step-by-step explanation:
Look at attachment:
Hope this helps! :)
Substitution:
X + 2y = 13
-2x - 3y = -18
Answer:
x = -3
y = 8
Step-by-step explanation:
x + 2y = 13 ------------(I)
x = 13 - 2y -----------(II)
-2x - 3y = -18 ----------(III)
Substitute x = 13 - 2y in equation (III)
-2*(13 - 2y) - 3y = -18
-2*13 - 2y *(-2) -3y = -18
-26 + 4y - 3y = -18 {Combine like terms}
-26 + y = -18 {Add 26 to both sides}
y = -18 + 26
y = 8
Substitute y = 8 in equation (II)
x = 13 - 2*8
= 13 - 16
x = -3
x = -3
y = 8
Can someone please help me with math
Answer:
D
Step-by-step explanation:
Answer:
undefined
Step-by-step explanation:
The slope of a vertical line is undefined
Can you just make it as simple as possible please
Please don’t answer unless you know
Answer:
The light blue one -- second from the left.
x = 14 ; y = 7√2
Step-by-step explanation:
This is a right triangle. One of the angles is 45. So is the other base angle.
So one of the legs is 7√2. The other leg is also 7√2 because they are opposite equal angles.
The hypotenuse is
a^2 + b^2 = c^2
a = b
2a^2 = c^2
2 (7√2)² = c^2
2 49 * 2 = c^2
4 * 49 = c^2
c^2 = 196
c = 14
John did an experiment pulling marbles out of a bag, without knowing the contents of the bag. After performing
20 trials, John had pulled 3 red marbles, 11 blue marbles, and 6 orange marbles. He knows that there are 10
marbles in the bag. How many orange marbles could he expect to pull if he performed a new trial with a total of
1,000 trials?
Answer:
300
Step-by-step explanation:
8 people want to share a large pizza.Use a ratio to express how many pieces each person gets if the pizza is divided equally
Answer:
1/8
Step-by-step explanation:
I don't understand this quadratic functions question please help.
find x for 2x - 12 = 14 please help
Answer:
X = 13
Step-by-step explanation:
2x - 12 = 14
+ 12 = + 12
2x = 26
/2 /2
x = 13
Husam works at a music store.Last week,he sold 6 more than 3 times the number of CDs that she sold this week.Husam told a total of 110 CDs over the last 2 weeks.How many CDs did husam sell last week?How many CDs did husam sell this week
Answer:
84 CDs last week and 26 CDs this week
Step-by-step explanation:
Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
Kendra's Bakery recently spent a total of $134 on new equipment, and their average hourly operating costs are $20. Their average hourly receipts are $22. The bakery will soon make back the amount it invested in equipment. How many hours will that take? What would the total expenses and receipts both equal?
Will give brainliest and 20 points!
Evaluate 2-(-4)+3+(-6)-(-2)
Answer:
5
Step-by-step explanation:
2-(-4)+3=9
9+(-6)-(-2)=5
Answer:
5
Step-by-step explanation:
2-(-4)+3+(-6)-(-2) if a negative is next to a negative number then It'll be a positive
2+4+3+(-6)+2
6+3+(-6)+2
9+(-6)+2
11+(-6)
5
A store sells phone accessories. They sold chargers for $13 and cases for $8.99. One evening, they sold 1 phone charger and some
phone cases for a total of $156.84. How many phone cases did they sell that evening?
Use the variable, c, to represent the number of phone cases sold
Answer:
they sold 16 phone cases
Step-by-step explanation:
Mark me brainleyest
h + 3 = -13
please show work
H= -16
Step-by-step explanation: