Answers
Answer:
D. 25% decrease
Step-by-step explanation:
When we have multiple choice questions, generally the best first step is to narrow down your options. We can see that our options are either increase or decrease. Obviously, if the class read 40 books in June and then 30 in July, that's a decrease. So option C is out of the question.
We still have three options left, so we have to now figure out the exact percentage decrease. Let's find out what percentage of 40 is 30.
[tex]\frac{30}{40}=0.75[/tex]
(Remember that percentages are parts of 1. 100%=1, 50%=.5)
So 30 is 75% of 40. And what percentage did we go down from 100%? 25%.
There was a 25% decrease in the number of books read.
I hope this helps!
Related Questions
A cafeteria serves each student a 1/4 of a pound hamburger. How many
pounds of ground beef must be purchased to serve 700 students?
Answers
please help me asap
Answers
Answer:
8 1/3 and 2/7
Step-by-step explanation:
2) C) 2/7
Hope this helps!
f(5)=3x+2
What is the solution
Answers
Answer:
f=3/5x+2/5c
Step-by-step explanation:
F(5) = 3x + 2
= 3(5)+ 2
=15+ 2
= 17
2x2 - 4x –9 = 0
Completing the swuare
Answers
Step-by-step explanation:
[tex](a-b)^2=a^2-2ab+b^2\\\\2x^2-4x-9=0\qquad|\text{add 9 to both sides}\\\\2x^2-4x-9+9=0+9\\\\2x^2-4x=9\qquad|\text{divide both sides by 2}\\\\\dfrac{2x^2}{2}-\dfrac{4x}{2}=\dfrac{9}{2}\\\\x^2-2x=4.5\\\\x^2-2\cdot x\cdot1=4.5\qquad|\text{add}\ 1^2\ \text{to both sides}\\\\x^2-2\cdot x\cdot1+1^2=4.5+1^2\\\\(x-1)^2=5.5\iff x-1=\pm\sqrt{5.5}\qquad|\text{add 1 to both sides}\\\\x=1-\sqrt{5.5}\ \vee\ x=1+\sqrt{5.5}[/tex]
Question 1
x + 6 = 23 x = ____
Question 2
Solve.
x - 7 = 12 x = ___
Question 3
Solve. Round your answer to the nearest tenth.
4x = 13 x = ____
Question 4
Solve. Round your answer to the nearest tenth.
3x + 1 = 15
Answers
Answer:
1. x=17
2. x=19
3. x=3
4. x=4
Answer:
question 1:
3/11
question 2:
- 7/11
Step-by-step explanation:
in
Someone please answer this assignment is due in 5 minutes
A recipe for banana bread requires 3 cups of bananas for every 1 1/2 cups of sugar used. At this rate, how many cups of sugar should be used if 8 cups of bananas are used?
Answers
The ratio of bananas to sugar is 3:1.5
We’re looking for the cups of sugar is bananas is 8 so 8:s
3 : 1.5
Is equal to
8 : s
So 8/3 should be equal to s/1.5
8/3 is 2.6666 and 1.5 times 2.6666 is 3.9999
What is does 4x + 9 = 68
Answers
Answer:
x=19.75
Step-by-step explanation:
4x + 9 = 68
Subtract 9 from both sides:
4x = 59
Divide both sides by 4
X = 59/4
X = 14.75
Write an expression for 368 and b more
Answers
Answer:
368=bx
Step-by-step explanation:
just quessing hope i helped.
What is the modulus after (–1 + StartRoot 3 EndRoot i ) gets raised to the 6th power?
2
12
32
64
Answers
Answer:
64
Step-by-step explanation:
Once you convert -1+sqrt3i intro trig form, the modulus is 2. Since you are raising it to the 6th power, 2 to the 6th power is 64. So, the modulus of (-1+sqrt3i)^6 is 64. Hope this helps!
Answer:
64
Step-by-step explanation:
I need help fast!!!!
Answers
Answer:
Step-by-step explanation:
You really should object to this question. Technically, none of the answers are correct. The dot is blacked in. Therefore it includes the endpoint.
Either ≤ or ≥ should be used.
Now that I have finished nit picking, the closest answer is
10x ≤ -5 Divide by 10
10x/10 ≤ -5/10
x ≤ -0.5
The closest answer is a.
=====================
w + 125.2 = 255 Subtract 125.2 from both sides
w = 255 - 125.2
w = 129.8
Find the area of the shaded region in the figure below, if the radius of the outer circle is 10 and the radius of the inner circle is 8. Keep your answer is terms of pi.
Answers
Answer:
I assume that the figure your figure is like this:
The Area of the shaded Region is 36π .
What is a Circle ?A circle is a round shaped figure whose all the point lie in the same plane.
It is given that Area of the shaded region needs to be found in the figure attached
Radius of the outer circle is 10
and Radius of the inner circle is 8
The area of the shaded region = Area of the outer circle - area of the inner circle
Area of a circle = πr²
r is the radius of the circle.
Area of the outer circle = π(10)²
Area of the outer circle = 100π
Area of the inner circle = π (8)²
Area of the inner circle = 64 π
Area of the shaded Region = 100π - 64 π
Area of the shaded Region = 36π
Therefore the Area of the shaded Region is 36π .
The missing figure is attached with the answer.
To know more about Circle
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Please help me find the value of z.
Answers
====================================================
Work Shown:
Plug (x,y) = (3,2) into the F(x,y) function
[tex]F(x,y) = 2x^2 + 4y^2\\\\F(3,2) = 2(3)^2 + 4(2)^2\\\\F(3,2) = 34\\\\[/tex]
Next, find the gradient and plug in (x,y) = (3,2)
[tex]F(x,y) = 2x^2 + 4y^2\\\\\\\nabla F(x,y) = \Big< \frac{dF}{dx}, \frac{dF}{dy}\Big>\\\\\\\nabla F(x,y) = \Big< 4x, 8y \Big>\\\\\\\nabla F(3,2) = \Big< 4*3, 8*2 \Big>\\\\\\\nabla F(3,2) = \Big< 12, 16 \Big>\\\\\\[/tex]
This means,
[tex]z = \nabla F(3,2) \cdot \left(\vec{x} - \big< 3, 2 \big>\right) + F(3,2)\\\\\\z = \nabla F(3,2) \cdot \left(\big< x,y \big> - \big< 3, 2 \big>\right) + F(3,2)\\\\\\z = \nabla F(3,2) \cdot \big< x-3,y-2 \big> + F(3,2)\\\\\\z = \big< 12,16 \big> \cdot \big< x-3,y-2 \big> + 34\\\\\\z = 12(x-3)+16(y-2) + 34\\\\\\z = 12x-36+16y-32 + 34\\\\\\z = 12x+16y-34\\\\\\[/tex]
As a way to help check, note how plugging (x,y) = (3,2) into the last equation for z leads to z = 34. This helps confirm that we have the correct equation because the point (3,2,34) must be on F(x,y) and also on z since the plane is tangent to the F(x,y) curve at this point.
5. Open Response Monique wants to rent
online movies. Movies Plus charges a
one-time fee of $20 plus $5 per movie.
Movies-To-Go charges $7 per movie. For how
many movies is the cost of renting movies
from Movies Plus and Movies-To-Go the
same?
Answers
Answer:
I'm going to say Movies-To-Go because this is an easy question.
Step-by-step explanation:
movies plus charges more than movies to go and your asking for which one is cheaper so movies to go is the answer.
The number of movies at which the cost of renting movies
from Movies Plus and Movies-To-Go is the same is 10 movies.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
We have,
Movies plus:
One time fee = $20
Cost per movie = $5
We can write an equation for the total cost T for x movies:
T = 20 + 5x _____(1)
Movie-to-go:
Cost per movie = $7
We can write an equation for the total cost T for x movies:
T = 7x _____(2)
Now,
The number of movies at which the cost of renting movies
from Movies Plus and Movies-To-Go is the same is:
From (1) and (2),
20 + 5x = 7x
20 = 7x - 5x
20 = 2x
x = 20/2
x = 10
Thus,
The number of movies at which the cost of renting movies
from Movies Plus and Movies-To-Go is the same is 10 movies.
Learn more about equations here:
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.98*125
13.75*12
143.43/31
Answers
Answer:
n = 6
n, = 6n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2
'
write the linear equation in slope intercept form
Answers
Explanation:
You would take two points and use the slope formula
Y2-y1/x2-x1
So I took the points (0,0) and (1,5)
5-0/1-0
5/1
5= the slope
So now we know y=5x+b and since it shows us on the graph where the line crosses the y axis we know the y intercept will be zero because it crosses at 0. When the y-intercept is 0 we don’t even need to list it.
Answer:
y=5/1x or y=5x
Step-by-step explanation:
Are the points on the boundary line part of the
solution set or not?
Answers
Answer:
yes
Step-by-step explanation:
All of the points in the picture are on the same line.Find the values for "a" and "b". Explain your reasoning.
Answers
Answer:
I don’t know
Step-by-step explanation:
Go ask your teacher please help me
With this What is a linear function in the form y= mx + b for the line passing through (4.5, -4.25) with y-intercept 2.5?
skjsksmsms
Two collinear points are given in the table below
X Y
0 0
5 -2
Select all points that do not lie on this line.
a.(−10,−4)
b.(−3,−45)
c.(−15,6)
d.(−10,4)
e.(2,−45)
Answers
Answer:
I think the answer are C. , d. , E.
Step-by-step explanation:
Answer:
b & c
Step-by-step explanation: I got a 100 on the USA/test
The equation of the piecewise defined function f(x) is below. What is the value of f(1)?
Answers
= -(x^2)
= -(1)
= -1
The value of the f(1) should be -1 when the equation of the piecewise defined function f(x).
Calculation of the value of f(1):here first we are required to determine which expression to use for f(1). The first function does not involve 1, because it is <, and not ≤
And,
The second functions involved 1, because it has a ≤ that meaning greater than or equal to, so this is the function we must use.
So, it can be like
f(1) = -1
= -(x^2)
= -(1)
= -1
hence,
The value of the f(1) should be -1 when the equation of the piecewise defined function f(x).
learn more about function here: https://brainly.com/question/15546484
help me wit this...ion even know what these r
Answers
Answer:
Curl up test
Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions against a resistance for an extended period of time. It is one of the components of muscular fitness, along with muscular strength and power.
3) The bakers at Healthy Bakery can make 350 bagels in 2 hours. How many
bagels can they bake in 22 hours? What was that rate per hour?
Answers
Answer:
3850
Step-by-step explanation:
Total bagels in 22 hours 3850, and the rate per hour is 175
9 % as a fraction in simplest form
Answers
Answer:
9/100
Step-by-step explanation:
9% = 9/100
Hope it helps
Answer:
9/100
Step-by-step explanation:
this is the simplest form
find the slope of the line that passes through (7,7) and (3,2).
Answers
Answer:
-5/4
Step-by-step explanation:
to find the slope the equation is the secony - the first y over the second x- the first x so 2-7 is -5 and 3-7 is -4 so it would be -5/4
the equation you get is 2-7/3-7, which simplifies to -5/-4, which is 5/4
point of (9,0)(9,0) after a translation left 2 units and up 5 units?
Answers
Answer:
It's (7,5) I believe
Step-by-step explanation:
Joseph wants to buy a new smart TV. He has saved $40 and earns $15 per lawn of leaves he rakes. Which of the following equations can be used to determine the number of lawns Joseph needs to rake r, in order to buy the smart TV, which costs S dollars
Answers
Answer:
he rakes 3 lawns per day. he would have to work for 6.4 days to earn $45.
hope this helps!!!!!
Madeline drove 180 miles in 4 hours. If she drove at a constant rate, how far
did she travel in one hour?
PLSSS HELP
Answers
Answer:
45
Step-by-step explanation: divide 180 by 4
what is 25 divided by 1 1/4
Answers
Answer:
20
Step-by-step explanation:
25 ÷ 1.25 = 20
A cell phone plan costs $150 to start. Then, there is a $50 charge each month. What is
the total cost (including start up fee and monthly charge) to use the cell phone plan
for 2 months?
$200
$300
$250
$350
Answers
Answer:
so Y= 150 + 50x
Step-by-step explanation:
so y = 150 + 50 x 2 will = 250
50 x 2 = 100
100 + 150Y
= 250
Answer:
$250 is the answer. 150 + 2 (50) = 250
What are the slope and the y-intercept of the graph of the linear function shown on the grid?
triand - easy online student testing
Slope =
-1/3
, y-intercept = -6
Slope = 3, y-intercept = -2
Slope = -3, y-intercept = -6
Slope = 4, y-intercept = -2
Answers
Answer:
it looks like you already have the answer but the answer would be slope as -1/3 and y intercept as -6
14. Taxi company A charges $2 per ride plus $0.25 per mile. Taxi company B charges $3 per ride plus $0.15 per mile. Which equation could be used to find the number of miles for which both companies cost the same for one ride? O A.2.25m = 3.15m
B. 2 + 0.15m = 3 + 0.25m
C.2m +0.25 = 3m +0.15
D.2 + 0.25m = 3 + 0.15m
Answers
Answer:
So i beiieve the answer is B
Step-by-step explanation:
Because if you thinl about the ride for A is $2 plus 25 cents so its 2 plus 25m thats per mile and b 3 dollars and 15 so u keep adding up until u get the same from both equations if u need further explanation let me know
