Answer: 12.25 dollars
Step-by-step explanation:
how many solutions exist for the given equation? 0.75(x+40)=0.35(x+20)+0.35(x+20)
please hurry
Answer:
only one
Step-by-step explanation:
0.75x+30=0.35x+7+0.35x+7
x=-320
2 The value of y is directly proportional
to the value of x.
If y = 35 when x = 140, what is the
value of y when x=70
Answer:
y = 17.5
Step-by-step explanation:
Given that y is directly proportional to x then the equation relating them is
y = kx ← k is the constant of proportion
To find k use the condition y = 35 when x = 140, then
35 = 140k ( divide both sides by 140 )
0.25 = k
y = 0.25x ← equation of proportion
When x = 70, then
y = 0.25 × 70 = 17.5
What is the Lcm of 168?
Answer:
6
Step-by-step explanation:
You know whats weird lol?
Im about to be 14 in january right, and i already have a job. I work 7 days a week.
And my sister is 16, she doesnt have a job or do anything..
chile-
Answer:
wow
Step-by-step explanation:
You earnin monnnnnneyyyyyyyyy!!!!!!!!!!!!!!!!!!!
Use the diagram to find the measures of all the angles, given that m/2 = 159º.
2
3
4
m 21
m23
m24
HELP ME WHAT IS THE ANSWER FOR Divide 758,908 ÷ 72 and indicate the remainder, if any. Use long division.
Answer:
10540.3888889
Step-by-step explanation:
May I have brainliest please? :)
In ΔBCD, the measure of ∠D=90°, DC = 12, BD = 35, and CB = 37. What is the value of the tangent of ∠B to the nearest hundredth?
Answer:
0.34
Step-by-step explanation:
Geology in 1668, the Hope diamond was reduced from its original weight by about 45 carats, resulting in a diamond weighing about 67 carats. Write and solve an equation to find how many carats the original diamond weighed. Answer:
Answer: W = 112 carats
Step-by-step explanation: Let W be the original weight.
So we have
W - 45 = 67 add 45 to both sides
And that equals 112 carats
what expression does the model show
i will give brainliest
help asap
answer question bellow!!!
If 8 containers of cold brew coffee cost $24.80, what is the constant of proportionality?
Answer:
3.1
Step-by-step explanation:
In the following activity, match each pair of equivalent expressions.
1 . (7 - 2x) + (3x - 11) 2(x - 2)
2 . -3x + 6 + 4x (x + 14) - (8 - 2x)
3 . -2x + 9 + 5x + 6 3(x + 5)
4 . 9x - 2(3x - 3) -4(x + 1) + 5x
5 . -7 + 6x - 4x + 3 (7 + 5x) + (-4x - 1)
Answer:
1. -8+3x
2. 51x-2+4x2 (squared)
3. 66x +324
4. 6x+2
5. 13 +13x
Step-by-step explanation:
I don't think I really understand the question but I tried to simplify the equations
What is the greatest common factor of 14, 51 ,21
Answer:
The answer is 1
Step-by-step explanation:
14 = 2 × 7
51 = 3 × 17
21 = 3 × 7
What is the least possible value of x if x^2 + 21 = 30
Answer:
Least possible value of x is 3
Step-by-step explanation:
Given:
x² + 21 = 30
Find:
Value of x
Computation:
x² + 21 = 30
x² = 30 - 21
x² = 9
x = √9
x = 3
Least possible value of x is 3
Students make 97.5 ounces of liquid soap for a craft fair. They put the soap in 7.5-ounce bottles and sell each bottle for $5.50$. How much do the students earn if they sell all the bottles of liquid soap? Explain.
Answer:$71.50
Step-by-step explanation:
Hello!
So first you want to find out how many bottles of soap you can make
To do that you want to divide how many ounces you have by how many ounces it takes to make 1 bottle
97.5 / 7.5 = 13
So you know you can make 13 bottles of soap
So now you want to multiply the number of bottles of soap that can be made by the amount of money you can make per bottle
13 * 5.50 = 71.50
So you know that the students can make $71.50
. The equation = can be used to find how many hours h a person needs to work to earn $200 at $8 per hour. How many hours does a person need to work to earn $200?
Answer:
0.04 h
Step-by-step explanation:
The given equation is :
8h=200
It is used to find hours h a person needs to work to earn $200 at $8 per hour.
We need to find no of hours does a person need to work to earn $200. It can be calculated as follows :
[tex]\dfrac{8h}{200}=\dfrac{200}{200}\\\\h = 0.04\ h[/tex]
So, for $200, the person will need 0.04 h.
Determine the value of angle ECB
Please help me out!
Answer: ∠ECB = 60°
Step-by-step explanation:
First, find the value of x by adding them up.
x + 3x + 2x = 6x
Since we know that all of the angles create a 180° angle, we can set up a proportion.
6x = 180°
To find the value of x, divide both sides by 6.
6x ÷ 6 = x
180 ÷ 6 = 30
So now the proportion is x = 30.
Now that we now x = 30, we can plug in 30 to the angle measures.
∠DCA = 30°
∠DCE = 90°
∠ECB = 60°
So angle ECB is 60°.
hope this helps!
IM DONE WITH THIS STUPID THING 50 POINTS TO THE PERSON WHO GETS IT ALL CORRECT.
why is the set {(3,6), (4,8), (5,10), (3,1), (6,12), (7,10)} NOT a function
Answer:
There are two 3s for the imputs (3,6) (3,1)
Step-by-step explanation:
There can only be one output for every input
Hey I need help with my math work
Step-by-step explanation:
what is the question?????
Answer:
Where is the question???
Step-by-step explanation:
If k=4 then the remainder of (x^3-7x+k)/x+1 is 2. True or False?
Answer:
Step-by-step explanation:
It would be true
Answer:
k=2 so false
Step-by-step explanation:
5 5/6 + (-1/6) + 2 2/3 + (-2 2/3)
Answer:
5.66666666667
Step-by-step explanation:
If
you borrow $500 at 5% for two years, how much will you pay back by the end of the term?
Answer:
Your estimated monthly payments are $22 and you will pay $26 in interest over the life of the loan.
Step-by-step explanation:
Given f(x) = 5x - 3 , solve for when f(x) = 7
Answer:
32
Step-by-step explanation:
f(x) = 7, so:
5 · 7 - 3= 35 - 3 = 32
Answer:
x = 2
Step-by-step explanation:
f(x) = 5x - 3
7 = 5x - 3
10 = 5x
2 = x
So, x = 2
What is x in x4 - 2x3 - 3x2 = 0
What is the best estimate of
18
×
709
?
A.
9,000
B.
14,000
C.
18,000
D.
22,000
Answer:
B. 14,000
I hope that this helps you, have a wonderful day!
The best estimate from the option is 14,000 since 14,000 is the nearest value from the option to 12763.
Given,
18 x 709
We need to find the best estimate.
How do multiply numbers?We need to multiply each number of one number with the other number and add them to get the product.
Example:
21 x 34 =
21 x 3 = 63
21 x 4 = 84
2 1
x 3 4
84
+ 63
71 4
We have,
18 x 709
We can write it as:
709 x 18
709 x 8 = 5672
709 x 1 = 709
709
x 18
5672
+ 709
12762
Thus the best estimate from the option is 14,000 since 14,000 is the nearest value from the option to 12763.
Learn more about how to multiply numbers here:
https://brainly.com/question/12069004
#SPJ2
(-11)+(-11) i will give brainllest
Answer:
the answer is -22
Step-by-step explanation
Need help ASAP!!!!!!
Answer:
see explanation
Step-by-step explanation:
x² + 3x + 7 = 5 ( subtract 5 from both sides )
x² + 3x + 2 = 0 ← in standard form
(x + 2)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x ( zero product rule )
x + 2 = 0 → x = - 2
x + 1 = 0 ⇒ x = - 1
--------------------------------------------------------------
x² - 2 = - 2x² + 5x ( subtract - 2x² + 5x from both sides )
3x² - 5x - 2 = 0 ← in standard form
(3x + 1)(x - 2) = 0 ← in factored form
Equate each factor to zero and solve for x
3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = - [tex]\frac{1}{3}[/tex]
x - 2 = 0 ⇒ x = 2
------------------------------------------------------------
(x + 3)² + 4x = 0 ← expand left side using FOIL and simplify
x² + 6x + 9 + 4x = 0
x² + 10x + 9 = 0 ← in standard form
(x + 9)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 9 = 0 ⇒ x = - 9
x + 1 = 0 ⇒ x = - 1
Researchers randomly choose two groups from 15 volunteers. Over a period of 9 weeks, one group watches television before going to sleep, and the other does not. Volunteers wear monitoring devices while sleeping, and researchers record dream activity. Which type of study method is described in each situation? Group of answer choices a) observational study b) controlled experiment c) survey
Answer: B. Controlled experiment
Step-by-step explanation:
This is a controlled experiment because the variables in the question are manipulated by the researcher. We are told that while one group watches television before going to sleep, the other group does not.
The controllers won't have control over the variables that were used if it was an observational study while for a survey, it has to do with collection of information regarding certain topics or happenings in order to have people's perception on the topic or area of interest.
Jason drove 110 miles in 2 3/4 hours. What was Jason's speed in miles per hour?
Answer:
It is 40 miles per hour.
Step-by-step explanation:
turning the 2 3/4 to 2.75, you can divide 110 by 2.75 to get 40.
brainliest if i am right? uwu