Answer:
35
Step-by-step explanation:
mean=the total sum of the numbers divided by the number of number
10±20±30±40±50±60=210
210÷6=35
Daniel had a social studies quiz. He answered eighty-seven out of 100 exercises correctly. Choose the decimal that shows the part of the quiz that Daniel answered correctly.
Answer:
0.87
Step-by-step explanation:
Out of a total number of 100 questions, Daniel is said to have answered 87.
We first express this as a fraction.
Total number of questions he answered divided by total number of quiz questions
= 87/100
As a decimal, 87 divided by 100 = 0.87.
You can easily get this by using the calculator.
Thank you!
Answer:
Step-by-step explanation:
0.87 because 87+0=87
The amount of money earned on a job is directly proportional to the
number of hours worked. If $70,00 is earned in 5 hours, how much money
is earned in 22 hours of work?
Answer:
$308 is the correct answer. Please refer to the attachment. If not able to understand then please let me know, I will resend it wih proper explanation. Hope it helps you. Thanks.
0.2
y is inversely proportional to V1+x.
When x=8, y = 2.
Find y when x = 15.
Please help me with this real quick!
Answer:
y = 1.5
Step-by-step explanation:
Given y is inversely proportional to [tex]\sqrt{1+x}[/tex] , then the equation relating them is
y = [tex]\frac{k}{\sqrt{1+x} }[/tex] ← k is the constant of variation
To find k use the condition when x = 8, y = 2 , then
2 = [tex]\frac{k}{\sqrt{1+8} }[/tex] = [tex]\frac{k}{\sqrt{9} }[/tex] = [tex]\frac{k}{3}[/tex] ( multiply both sides by 3 )
6 = k
y = [tex]\frac{6}{\sqrt{1+x} }[/tex] ← equation of variation
When x = 15, then
y = [tex]\frac{6}{\sqrt{1+15} }[/tex] = [tex]\frac{6}{\sqrt{16} }[/tex] = [tex]\frac{6}{4}[/tex] = 1.5
Find the slope of the line
y = -5x + 5
Answer:
-5
Step-by-step explanation:
this is a y = mx + b equation. m is slope.
Answer:
-5
Step-by-step explanation:
When a linear function is in the form y=mx+b then m represents the slope of the line.
Find the surface area of a triangle prism side of the right triangular base measure 9 cm 12 cm and 15 cm the height Prism is 20 cm
Answer:
I think its 20 cm
Step-by-step explanation:
just need help with the way. thanks!
Answer:
KN ≈ 20.7 cm
Step-by-step explanation:
Using Pythagoras' identity in right triangle KLM to find KM
LM² = KL² + KM²
28² = 16² + KM²
784 = 256 + KM² ( subtract 256 from both sides )
528 = KM² ( take the square root of both sides )
[tex]\sqrt{528}[/tex] = KM
----------------------------------------
Using the sine ratio in right triangle KMN
sin64° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{KN}{KM}[/tex] = [tex]\frac{KN}{\sqrt{528} }[/tex] ( multiply both sides by [tex]\sqrt{528}[/tex]
[tex]\sqrt{528}[/tex] × sin64° = KN , that is
KN ≈ 20.7 cm ( to 1 dec. place )
pls help i only have 10 minutes on my math test!!
the ratios are
8:5 ?????:10
Answer:
yes
Step-by-step explanation:
please answer and show step.
Answer:
i believe the answer is 25.
Step-by-step explanation:
this is because if a=how much money deposited after t= depositing weekly and 16 is being multiplied by t. that leads me to believe she deposits $16 weekly. therefore, her original deposit was $25.
tell me if this is incorrect.
Answer:
25
Step-by-step explanation:
In this equation, the original deposit was 25 dollars. The equation shows how much total money was in the account every week. It is written in slope-intercept form, which is y=mx+b, where m is the slope (how much the account is increasing each week) and b is the y-intercept (what was in the account after 0 weeks). This means 25 dollars must be the initial deposit because it is the total before any new weekly deposits.
PLEASE HELP ME WITH THIS !!
Ms. Murray has a collection of 25 dimes and nickels. How many nickels does Ms. Murray have if she has a total of $2.30?
Find the value of x.
Answer:
45 degrees
Step-by-step explanation:
Before we start, it is important to know that the sum of all angles of a triangle adds up to 180. Since one of the angle measure is already given to us, 90, we can subtract this from 180.
180-90=90
This tells us that the two remaining angles will add together to equal 90. In addition, it also tells us that the two remaining angles are equal. This means we can divide 90 by 2, and it leaves us that x= 45 degrees.
HELP HELP ASAP PLEASE
Need help with geometry HW.
Answer MKL = 45
Step-by-step explanation: 51.5+38.5=90
Then divid 90 by 2 and you get 45
Triangle QRS is a right triangle.
What is the lenghts of RS.
0 10
0 7.1
05.3
0 14
Answer:
5.3
Step-by-step explanation:
a² + b² =² c² the Pythagorean theorem
RQ² + RS² = QS² Solve RS
6² + RS² = 8²
RS² = 64 -36
RS² = 28
RS = √28 28 is slightly > 25 and since √25 =5
RS = 5.3 actually 5.2915 to a few more significant digits
10. Find the vertex, domain and range from the function y = = 2|x|
a V(2,0), Domain: x E R, Range: y E (00, 2]
b V(0,2), Domain: x E R, Range: y € [2,00)
C V(0,0), Domain: x E R, Range: y € (0,0]
d V(0,0), Domain: x E R, Range: y € [0, 0)
Check it
skip
5. Find the slope of a line perpendicular to the graph of the given equation:
y = 2/7x + 1
-7/2
2/7
-2/7
7/2
Answer:
2/7
Step-by-step explanation:
Slope is the number in front of the x
Due in 5 minutes!!!!!!
Answer:
Pls send a more clearer picture
Step-by-step explanation:
.A radio station sends a signal in a circular
area with an 80-mile radius. Find the
approximate area in square kilometers that
receives the signal. (Hint: 1 square mile z
2.6 square kilometers)
Answer:
52,249.6
Step-by-step explanation:
i fr need help please find x
Answer:
14
Step-by-step explanation:
below is 12+2 which is the same size as the top one
SOMEONE PLS HELP WITH THIS!!!!!!!!
Answer:
either 240 ft or 300 ft
Ellie earns money by raking leaves. She earns $2.25 for each bag she fills with leaves. This week, she earns $24,75. How many bags of leaves does Ellie fill this week? Show your work.
Answer:
she raked 11 bags of leaves
Step-by-step explanation:
24.75 divided by 2.25= 11
what is 4/9 in the simplest form?
Answer:
it already is in simplest form
Step-by-step explanation:
4/9 is the simplest form. There is no way to simplify it further.
If this is incorrect, please, don't refrain to tell me. Thank you.
In circle A, ∠BAE ≅ ∠DAE.
Answer: the length of BE is 27
Dan buys a car for £1700.
It depreciates at a rate of 4% per year.
How much will it be worth in 4 years?
Give your answer to the nearest penny where appropriate
Answer: £2080.00 :)
hope it helps
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Answer is 16 because 16/4 = 4 + -12 = -8
Answer:
m=16
Step-by-step explanation:
-8=m/4+(-12)
4=m/4
16=m
so first, you add 12 to the other side to cancel out the -12. 12-8=4. so now you have 4=m/4. to isolate the m, you have to multiply by 4 on both sides, which gives you 16=m or m=16.
i hope this helps :)
am i right ? i just need clarification
Answer:
yes!!
Step-by-step explanation:
i need help i keel putting in the correct answer and it says it wrong
Answer:
Hi how are you doing today Jasmine
Answer:
36cm^2
Step-by-step explanation:
12 x 4 = 48
9 * 4 =36
36/3 =12
48 - 12 = 36
Complete the Area Model by dragging the response to the correct location/
Answer:
x2, 6x, 4x2
Step-by-step explanation:
Answer: x2 , 6x , 4x , 24 .
Step-by-step explanation: i got it wrong but it did tell me the correct answer !
Factor completely:
x^3 - x^2 - 6x
Answer:
[tex]x(x-3)(x+2)[/tex]
Step-by-step explanation:
1. Find the GCF (Greatest Common Factor)
[tex]GCF=x[/tex]
2. Factor out the GCF and simplify.
[tex]x(x^{2} -x-6)[/tex]
3. Factor [tex]x^{2} -x-6.[/tex]
Which two numbers add up to -1 and multiply to -6?
-3 and 2
Rewrite the expression using the numbers above.
[tex](x-3)(x+2)[/tex]
4. Done!
[tex]x(x-3)(x+2)[/tex]
8j + 3-j=17
solve for J