In January, Mr Tan's students read 20 books. In Febuary, they read 15 books. What is the percent increase or decrease in the number of books they read?
A. 5% decrease
B. 15% increase
C. 25% increase
D. 25% decrease
90 centimeters tall when 2 years old 100 centimeters tall when 5 do the number of centimeters and the number of years have a proportional relationship?
Answer:
10
Step-by-step explanation:
The sale price of an item is $180 after a 25% discount is applied. What is the original price of the item?
original price is $240
Answer:
$240
Step-by-step explanation:
.75*x=180
This equation is setup so we can find the value of the original price, since 25% is deducted, you can multiply x by 75% and set it equal to 180 since that is the resulting discounted price.
Describe the shape. FOUNDATION. Help please :(
Answer:
90 degrees counterclockwise
Step-by-step explanation:
Answer:
jfmfmhhcmcmfnf. cbimvncnvnj
An item is regularly priced at $40 it is on sale for 60% off the regular price how much in dollars is discounted from the regular price
Answer:
$24 and $16
Step-by-step explanation:
well let’s go through this step by step.
we have $40 which is the regular price, but not only do you want to find what 60% of 40 is, but you want to find out how big the difference is between the 2, in dollars. But i believe we can do that.
So let’s just think. Do you know how to get a percent of something? If so, ignore this next part. If not, all you want to do is take 40 x 0.60. or whatever number you need. if it’s out of 100, that’s what you would do.
So now that we know how to get a percent of something, let’s find 60% of 40.
40 x 0.60 gives us 24, or in this case it’d be $24.
Great! we found the discount! now all we need to do is find out the difference.
All we need to do from here is take 40 - 24. what is 40 - 24?
16!
Now you’re done! the discount brings it down to $24 and the difference between the starting price and the discount price is 16 dollars.
i hope this was able to help you!
How do you write 9/10 as a percentage
#To make a fraction into percentage, the easy way is to times the fraction with 100
The percentage of 9/109/10 × 100 = 90
#and so, the percentage of 9/10 is 90%
Answer : 90%solve this problem plss
-2 x < 12
Answer:
x<14
Step-by-step explanation:
y = -3x + 1
4x + y = 3
Eions?
What is the solution to the system of equations
Answer:
(2, - 5 )
Step-by-step explanation:
Given the 2 equations
y = - 3x + 1 → (1)
4x + y = 3 → (2)
Substitute y = - 3x + 1 into (2)
4x - 3x + 1 = 3
x + 1 = 3 ( subtract 1 from both sides )
x = 2
Substitute x = 2 into (1) for corresponding value of y
y = - 3(2) + 1 = - 6 + 1 = - 5
solution is (2, - 5 )
Please answer this correctly
Answer:
Correctly
Step-by-step explanation:
Jane sold a house for $160,000 that she listed. Her broker charges a % commission and she receives 60% of the commission. How much did Jane receive?
Jane gets 5,760.
What is commission?Commissions are a form of variable-pay remuneration for services rendered or products sold.
Given:
House sold for $160,000 with a listing commission of 6%
So, full commission
=160,000*0.06
= 9, 600
And, jane's share will be
=9600 * 0.60
=5,760
Hence, jane's share will be 5,760.
Learn more about this concept here:
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4. Communicate Precisely When you graph a quadratic function, the
y-intercept appears to be 1, and the x-intercepts appear to be -4 and 2.5.
Which values represent the solution(s) to the related equation of the
function? How can you check? Explain
Answer:
solo respondo esto por los puntos
In the triangle xyz, zv is both the median and the altitude, if xy=9x+12 and xz=11x+2 and yz=4x+20 find the perimeter
Answer:
The answer is "2(12x+17)"
Step-by-step explanation:
The formula of the perimeter:
[tex]\to \bold{P=xy+yz+xz}[/tex]
[tex]=9x+12+4x+20+11x+2\\\\=9x+4x+11x+2+20+12\\\\=24x+34\\\\ =2(12x+17)[/tex]
How to solve the equation: -2(-3x-4)=14
Answer:
1
Step-by-step explanation:
-2(-3x-4)=14
6x + 8 = 14
6x= 14-8
6x=6
x=1
Use the equation to identify a and b * a = 1/5 and b = 3 a = 3 and b = 1/5 a= 1/5 and b =1 a = 1 and b = 3
Answer:
[tex]a = 3[/tex]
[tex]b = \frac{1}{5}[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 3(\frac{1}{5})^x[/tex] --- Missing from the question
Required
Identify a and b
The given equation is an exponential function and the general form is:
[tex]f(x) = ab^x[/tex]
When [tex]f(x) = ab^x[/tex] is compared to [tex]f(x) = 3(\frac{1}{5})^x[/tex]
We have that: [tex]a = 3[/tex] and [tex]b = \frac{1}{5}[/tex]
if x = 7, then 7 = x is an example of which property
Answer/Step-by-step explanation:
What do you mean by property?
I will guess for now, but if it is not right I will update it.
It would be the associative property since you are flipping the equation around.
Hope this helps :)
A chess club plans to sell water bottles to raise $425
they already have $175
if they sell water bottles for $8 each, at least how many bottles do they need to sell in order raise enough money
which inequality represents the situation
Answer:
31
Step-by-step explanation:
I rounded it down thats it
The equality for this equation is
175 + 8b >/= 425
B = number of bottles required to sell. Now, I don't want to give you the answer but I can assist you in easily finding it. Subtract 175 from both sides
8b >/= 250
Now, divide at from both sides and remove the greater than mark which should mean that in the end it should look like it says
**edited** I mean divide 8 from both sides.
b = ?
That is the number of bottles they must sell, if it is a decimal, round it up because there is no such thing as a decimal number for selling water bottles.
Simplify 5g + h - 3h + 2g
Answer:
7g-2h
Step-by-step explanation:
5g+2g+h-34 = 7g-2h
Matt has 3 different colored T-shirts and 2 different colored shorts
How many outfits can Matt make with these clothes?
Answer:
Step-by-step explanation:
3 x 2 = 6
Matt can make 6 different outfits with these clothes.
What are the Combinations?Combinations are the procedures used in mathematics to pick k things from n different items without replacement.
The following formula computes the combinations of k items from n:
(n, k) = n! / k!×(n-k)!
Given that Matt has 3 different colored T-shirts and 2 different colored shorts.
Matt can make 3 x 2 = 6 different outfits with these clothes.
This is because for each T-shirt color, he has 2 options for shorts, and he has 3 different T-shirt colors.
So for each T-shirt color, the number of outfit combinations is 2. And since he has 3 T-shirt colors, the total number of outfits is 3 x 2 = 6.
Learn more about permutation here:
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-0.8(q - 0.5)= - 2.6 what is a
Answer:
3.75
Step-by-step explanation:
-0.8(q-0.5)=-2.6
-0.8q+0.4=-2.6
-0.8q=-2.6-0.4
-0.8q=-3
0.8q=3
q=3/0.8
q=3.75
Simplify: -5(3c-9) – 9c – 7c2 +5
What’s the answer?
Answer:
ANSWER: [tex]-7c^{2} -24c+50[/tex]
Step-by-step explanation:
A bakery sells vanilla cupcakes and mocha cupcakes. It sold 300 cupcakes in a day, and 29% of them were mocha. How many of the cupcakes sold that day were vanilla? Answer:
Answer:
213
Step-by-step explanation:
Given data
Total cupcakes sold= 300
we are told that 29% are mocha
Required
The amount of cupcakes that is vanilla
Let us find the amount that is mocha
=29/100*300
= 0.29*300
= 87 mocha
Hence the amount that is vanilla is
=300-87
=213
Answer:
213 Cupcakes
Step-by-step explanation:
Delta Math Answer
Find side x, giving your answer to 1 decimal place.
810
7 cm
40°
Х
Answer:
10.8
Step-by-step explanation:
By sine rule:
[tex] \frac{x}{ \sin 81 \degree} = \frac{7}{ \sin 40 \degree} \\ \\ x = \frac{7 \sin 81 \degree}{ \sin 40 \degree} \\ \\ x = \frac{7 \times0.9876883406 }{0.6427876097} \\ \\ x = \frac{6.91381838}{0.6427876097} \\ \\ x = 10.755992 \\ \\ x \approx 10.8[/tex]
Using the tangent formula we can write as,
Tan 40° = 7 / x
Tan 40 = 0.84
The value of x is 8.3 cm
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = 1/ cosec x
Cos x = 1/ sec x
Tan x = 1/ cot x or sin x / cos x
Cot x = cos x / sin x
We have,
A triangle with angle 40° angle 81° and 7 cm on on side of the triangle.
Using the tangent formula we can write as,
Tan 40° = 7 / x _____(1)
Now,
Tan 40 = 0.84
From (1) we get,
0.84 = 7 / x
x = 7 / 0.84
x = 8.3 cm
Thus,
The value of x is 8.3 cm
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Riya looks at the temperature in the kitchen. What is the temperature in the kitchen to the nearest division
Answer:
24 degree Celsius
Step-by-step explanation:
Temperature may be defined as the intensity or the degree of heat that is present in any substance or present in the environment. It is the measure of hotness or coldness of any item or surroundings. Temperature is measured with the help of a comparative scale which shows the how hot or cold the place is or item is.
In the context, Riya uses a comparative scale like the thermometer to measure the temperature of the kitchen. The mercury level on the scale rises and stops at a point indicating the temperature of the kitchen.
Thus the temperature of the kitchen according to the scale is [tex]$24 ^ \circ C$[/tex].
AC =
Round your answer to the nearest hundredth.
Answer:
the answer is 1.88 using cosine =adj/hyp
How can you see that a reflection could work without knowing where the line of reflection is? If you get the answer right I'll paypal, venmo or cash app you $50. So drop your paypal, venmo or cash app along with your answer.
Note how going from R to S to T to U has us going counterclockwise. In contrast, going from R' to S' to T' to U' has us going the opposite direction going clockwise. This change in orientation strongly implies that a reflection has been done. Reflections always flip orientation.
-----------------------------------------
Here's how we can find the line of reflection.
Draw a line segment from point R to point R'. Mark the midpoint of the segment as point A
Repeat this process to form a segment from S to S'. Mark the midpoint as point B.
The line of reflection will pass through points A and B. This is because the line of reflection is equally distant between the original point (such as point R) and its reflected point (such as R'). This must mean that the line of reflection goes through the midpoint of segment UU' and also segment TT'.
Refer to the diagram below.
If p = 15, what is p ÷ 5 - 2?
Answer:
1
Step-by-step explanation:
p ÷ 5 - 2, If p = 15
15/5 - 2
(15/5=3)
3 - 2 = 1
1 is the answer
please help asap!!!!
Answer:
391.5
Step-by-step explanation:
Find the area of all the sides.
Triangles area: 9 X 10=90 because there are 2 so you don't need to divide by 2
Rectangles area: (9X10)X2= 180 because there is 2
Another rectangle area 13.5 X 9= 121.5
Add all: 90+180+121.5
Answer 391.5
3 3/7x1/3 yeah pls help
Answer:
Step-by-step explanation:Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x1" was replaced by "x^1".
STEP
1
:
x
Simplify —
3
Equation at the end of step
1
:
33 x
—— • —
7 3
STEP
2
:
33
Simplify ——
7
Equation at the end of step
2
:
33 x
—— • —
7 3
STEP
3
:
Final result :
11x
———
7
If Angela made $75, how many hours did she tutor?
Answer:
2hours
Step-by-step explanation:
Answer:
2.14285714286 or simplifyed 2.14
Step-by-step explanation:
75 divided by 35= 2.14285714286
68 less than 55 times a number is equal to the number(x). Please can someone tell me the value of the number(x)?
Answer:
x = 34/27 or 1 7/27
Step-by-step explanation:
55x - 68 = x
-68 = -54x
x = 68/54