Answer:
Total = 800 books
Step-by-step explanation:
It is given that,
In a library, there are 3 non-fiction books for every 7 fiction books. It means that the ratio of non-fiction books to the fiction books is 3:7.
There if the library has 240 non-fiction books.
Let non fiction books are 3x and fiction books are 7x.
ATQ,
3x=240
x=80
Fiction books = 7x = 7(80) = 560
Total no of books = fiction books + non-fiction books
= 240 + 560
=800
Hence, the total no of books are 800.
What is the slope of the line that passes through the points (-2,3) and (-14, -5)?
Write your answer in simplest form
2(6x+5)=58
(solve for x)
Last week, the number of type 2 cabinets produced exceeded twice the number of type 1 cabinets produced by 20. If x is the number of type 1 cabinets produced and y is the number of type 2 cabinets produced, the system of equations that represents this situation is x + y = 110 and y = 2x + 20.?
Step-by-step explanation:
Let x is the number of type 1 cabinets produced and y is the number of type 2 cabinets produced.
The total no of cabinets are 100
Equation will be : x+y = 110
We can write it as : y = 110-x ...(1)
Last week, the number of type 2 cabinets produced exceeded twice the number of type 1 cabinets produced by 20.
Equation will be : y = 2x + 20 ...(2)
Put the value of y from equation (1) into equation (2).
110-x = 2x + 20
Combining like terms,
110-20 = 2x+x
90 = 3x
x = 30
Put the value of x in equation (1) :
y = 110-30
y = 80
Hence, there are 30 cabinets of type 1 and 80 cabinets of type 2.
On average, cody runs 4 miles in 38 minutes. How fast should he plan to run a 10-mile race if he maintains this place.
A: 1 hour 3 minutes
B: 1 hour 16 minutes
C: 1 hour 35 minutes
D: 2 hours 30 minutes
i am failing geometry and was wondering if my answers were right im really trying to get my grade up can someone please help thank you sm
Answer:
1)b
2)d)80/360×36π≈25.12cm²
4)d)32.5
5)c)135°
6)d)4π/3
Step-by-step explanation:
1) because as we know
Circle equation
=(x-a)²+(y-b)²=r²
=(x-5)²+(y+1)²=36 (given)
=(x-(+5))²+(y-(-1))²=6²
So
C(5,-1)and r=6
2)as we know area of sector
=Theta/360×πr²
=80/360×6²π
80/360×36×3.14
80/10×3.14
=25.12
4)to figure out 4 we have to separate the shape into 2 parts
First semi-circul
Second rectangle
So the parameter of the shape
=Circumference of semi-circul + the parameter of the rectangle
=[10π×½+2(10+3.4)]-10 (as the dashed line is not a part of parameter)
=[15.7+26.8]-10
=32.5
5)3π/4
3×180/4
540/4
135
6)240°
240°×π/180°
4π/3
Helpppppppppppppphxhxhxhxhx
Answer:
C [tex]\frac{48}{70}[/tex]
Step-by-step explanation:
Option C - [tex]\frac{48}{70}[/tex] is incorrect because when multiplying the numerator and denominator of the fraction [tex]\frac{7}{10}[/tex] by 7, you’re suppose to get [tex]\frac{49}{70}[/tex].
2
What is (2 + 0.4 + 0.6)= ?
Answer:
What is (2+0.4+0.6)
First we have to arrange the numbers in sequence...
[tex]2.0 \: + \: 0.4 \: + 0.6 \\ 3.0 \: or \: 3[/tex]
Here I have taken this 0 after the point ..as the rest of the digit are in tenths place or after the point...
The answer is 3.
We will not calculate the 0 as it does not have any value.
Ans) 3
Hope this helps you...Alarger number is 2 more than 4 times a smaller number. The larger number is also 8 more than 2 times the smaller number. 4x+2 y 2x+8 What is the value of the smaller number in the mathematical problem?
Answer:
the value of the smallest number is 3
Step-by-step explanation:
The computation of the value of the smaller number is shown below:
Given that
y = 4x + 2
y = 2x + 8
Now equate these two equations
4x + 2 = 2x + 8
4x - 2x = 8 - 2
2x = 6
x = 3
Hence, the value of the smallest number is 3
The same is to be considered
Answer:
The value number is 3
Step-by-step explanation:
Multiply:
x (x^2+2x+4) and -2 (x^2+2x+4)
Combine like terms.
Final Answer:
Answer:
x^3-8
Step-by-step explanation:
x^3+2x^2+4x + -2x^2-4x-8
+2x^2 and -2x^2 cancel out
+4x and -4x cancel out
You want to take 10 lessons at a swim club. You can pay a membership fee of $20 plus a fee per lesson. You can also decide no to pay a membership fee. In that case, the fee per lesson is $3 more. Is there any lesson fee for which these two plans cost the same?
Answer:
x = 1
Step-by-step explanation:
Plan A: 20 + 10x
Where, x = fee per lesson
Plan B: $3 × 10 lessons = $30
Equate plan A and plan B
Plan A = Plan B
20 + 10x = 30
10x = 30 - 20
10x = 10
x = 10/10
= 1
x = 1
What is the domain of the square root function graphed below?
x is greater than or equal to -4.
x>-4
x is greater than or equal to 0
x>0
Answer:
Its C, x≥0
Step-by-step explanation:
Edge 2020
Answer:person above is correct
Step-by-step explanation:
c
Please help me I’m begging you I’ll give brainless if your correct
Answer:
C
Step-by-step explanation:
24 + 2 = 26 ---> x = 26, y = 11
Answer:
the answer is c.) x = 26, y = 11
Find the value of x.
Find the equation of a line that passes through the points (-1,3) and (3,5). Leave your answer in the form y = m x + c
Answer:
⇒
y
=
−
2
x
+
13
Explanation:
You can use point-slope form to determine the slope
m
:
y
2
−
y
1
=
m
(
x
2
−
x
1
)
Given:
⇒
p
1
=
(
x
1
,
y
1
)
=
(
3
,
7
)
⇒
p
2
=
(
x
2
,
y
2
)
=
5,3)
Finding the slope:
3−7=m(5−3)−4=2m⇒m=−2
Step-by-step explanation:
Solving Polynomials (PLZ HELP!! BRAINLIEST IF RIGHT)
Answer:
[tex]x=\frac{2}{5}[/tex]
Step-by-step explanation:
[tex]5x^3-2x^2+5x-2=0\\x^2(5x-2)+(5x-2)=0\\(x^2+1)(5x-2)=0\\Hence,\\Either\ (x^2+1)\ should\ equal\ zero, or (5x-2)\ should\ be\ null.\\Lets\ try\ each\ on\ seperately:\\(x^2+1)=0\\x^2=-1\\x=\sqrt{-1}\\As\ \sqrt{-1}\ is\ not\ a\ real\ number,\ we\ can\ exclude\ it\ as\ a\ solution.\\Hence,\\(5x-2)=0\\5x=2\\x=\frac{2}{5} \\Thats\ your\ answer.[/tex]
Answer:
x = [tex]\frac{2}{5}[/tex] , x = ± i
Step-by-step explanation:
Given
5x³ - 2x² + 5x - 2 = 0 ( factor the first/second and third/fourth terms )
x²(5x - 2) + 1(5x - 2) = 0 ← factor out (x - 2) from each term
(5x - 2)(x² + 1) = 0
Equate each factor to zero and solve for x
5x - 2 = 0 ⇒ 5x = 2 ⇒ x = [tex]\frac{2}{5}[/tex]
x² + 1 = 0 ⇒ x² = - 1 ⇒ x = ± [tex]\sqrt{-1}[/tex] = ± i
The polynomial is of degree 3 and has 3 roots, 1 real and 2 complex, that is
x = [tex]\frac{2}{5}[/tex] ← real root
x = ± i ← complex roots
You and your partner decide to buy a house. The house costs £325,000. It will take 25 years
to pay off the mortgage and it will cost you £975,000 in total. What was your mortgage rate?
Answer:
66.66%
Step-by-step explanation:
follow the steps to get answer
plz thanks me and mark as
I need hellllllllllllllllllllllllppppppppppppppppppp An accountant used to charge $88 per hour, but recently decided to charge 25% less. Now how much does she charge per hour? *
MAKE SURE TO STATE IF IT IS AN INCREASE OR A DECREASE AND TO HAVE THE PERCENT SYMBOL. EX) 5% INCREASE *
Answer:
$66
Step-by-step explanation:
0.75(88)
Item 16
The points in the table lie on a line. Find the slope of the line
If bc+ad=b solve for a (please show work)
Answer:
a = [tex]\frac{b-bc}{d}[/tex]
Step-by-step explanation:
Given
bc + ad = b ( subtract bc from both sides )
ad = b - bc ( isolate a by dividing both sides by d )
a = [tex]\frac{b-bc}{d}[/tex]
If a line goes through the following two points: (0,-2) and (3,4), the slope of the line is:
A. 1/2
B.-1/2
C. 2
D. -2
HELP ASAP!!!
If f(x) = -4x + 1, find f(2).
Enter the numerical value only
Answer:
-7
Step-by-step explanation:
-4(2)=-8
-8+1=-7........
can someone help me. Arithmetic Sequences
Your bucket of Halloween candy has 125 pieces of candy in it. You decide that to ration yourself, you’re going to only eat 5 pieces per day.
What is the common difference?
Answer:
-5
Step-by-step explanation:
when you eat 5 pieces of candy per day then the sequence will be
125, 120, 115, 110, 105......
And Then, the common difference will be -5
Find the midpoint of the hypotenuse.
Which is bigger 1 2/7 or 1 7/20?
Answer: 1/27 is greater than 1 7/20 I believe.
The Micro Devices Company earned 3,632,859,678 dollars this year. 2,459,632,852 dollars were earned last year. Which is the best estimate of how many more dollars were earned this year than last year?
Answer:
$1,173,226,826
Step-by-step explanation:
The estimate of the increase in dollars earnings is the difference between this year's earnings and last year's earnings. In other words, the increase in earnings is the excess of current year's earnings over last year's earnings as computed below:
increase in earnings=this year's earnings-last year's earnings
this year's earnings=$3,632,859,678
last year's earnings=$2,459,632,852
increase in earnings=$3,632,859,678-$2,459,632,852
increase in earnings=$ 1,173,226,826
Alyson opened a savings account with a deposit of $600. She withdrew $15 each day for
the next 5 days, and then deposited her entire paycheck from Barney's Bagels, bringing
her balance to $750. Then she remembered that she had promised to donate 25% of her
paycheck to charity. How much should she withdraw from savings?
Answer:
$187.5
Step-by-step explanation:
25% of $750 = $187.5!
All I had to do was divide 750 by 4 and got my answer. You can also double check by multiplying 187.5 by 4 and you'll get the same answer.
"18 less than the quotient of a number and -5 is at most -2"
Answer:
so......... what's the question?
Step-by-step explanation:
-11/12 - (-5/12) (I tried to answer it, but when I tried to divide I just got another improper fraction, please help)
Answer:
-11/12 + 5/12
-11+5/12
-6/12
-1/2
Answer:
-6/12
Step-by-step explanation:
1. Change the signs. Two negatives make a positive.
-11/12 + 5/12
2. Add them together.
-6/12
3. Simplify
-1/2
what do you do with points
Answer: i think you need them to ask questions
Step-by-step explanation: whenever you ask a question it shows your questions and how many you need, so you have to answer questions to get some.
Determine whether the function is linear or nonlinear? Help
Answer:
linear
Step-by-step explanation:
If it is linear, for each unit increase in x, there should be a constant change in y.
x=1, y=5
in x=2, we expect y to increase by 5 units, so 5+5 = 10, which is right.
x=3, expect 5 units increase, and we do see that as 10+5 = 15.
x=4, expect 5 unit increase, and 15+5 =20 so we see that
this is linear function, if nonlinear then we would see different changes of y for each unit increase of x.
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