Answer:
27 years old
Step-by-step explanation:
What I know
Let D = Dave, S = Sabrina, etc. Then:
(1) [tex]D=0.15S[/tex]
(2) [tex]L=0.75S[/tex]
(3) [tex]R=3.00D[/tex]
(4) [tex]D+S+L+R=141[/tex]
Want to find R. Taking equation 3 and rewriting equation 4, we get
[tex]R=3.00D[/tex]
[tex]R=141-D-S-L[/tex]
So if [tex]R=R[/tex], then
[tex]3D=141-D-S-L-R[/tex]
[tex]4D=141-S-L[/tex] by adding [tex]D[/tex] to both sides.
Using equation 1 and equation 2, I can rewrite everything in terms of [tex]S[/tex] and get:
[tex]4(0.15S)=141-S-0.75S[/tex]
[tex]0.6S=141-1.75S[/tex]
[tex]2.35S=141[/tex] by adding [tex]1.75S[/tex] to both sides.
[tex]S=60[/tex] by dividing 2.35 both sides.
Now that I know Sabrina's age, I'll work towards getting Rhianna's using equation 1 and equation 3:
[tex]D=0.15(60)=9[/tex]
[tex]R=3.00(9)=27[/tex]
Checking my work:
Dave: 9
Sabrina: 60
Luca: 45 (since 9+60+45+27=141)
Rhianna: 27
9 is 15% of 60
45 is 75% of 60
27 is 300% of 9
Consider the function graphed on the coordinate plane.
When x<6, the function is Blank and Blank
answer choices
Blank 1. linear or nonlinear
Blank 2. increasing or decreasing
Answer:it is nonlinear and decreasing
Step-by-step explanation:
4^(5 )Identify the base and the exponent in the following expression.
4 is the ______ and the 5 is the _______
Answer:
4 is the BASE and 5 is the EXPONENT
Step-by-step explanation:
Thx i needed this answer :P
The number 5 is the exponent or power and the number 4 is the base of the expression.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The exponential expression is given as,
⇒ (4)⁵
In the exponential expression aⁿ, the n is the exponent or power and a is the base of the expression.
Then in the exponential expression (4)⁵, the number 5 is the exponent or power and the number 4 is the base of the expression.
More about the Algebra link is given below.
https://brainly.com/question/953809
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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
An automobile company manufactures hatchbacks, sedans, and sports cars. The company conducted a magazine survey to determine the demand for its cars in each of these categories. The results of the survey showed that 78% of those polled preferred hatchbacks, 19% voted for sedans, and 3% voted for sports cars.
If the company expects to sell 15,000 cars in a month, it should plan on
of the cars being sedans.
Answer:
2850
Step-by-step explanation:
Find the measure of the angle x. Please help!
360 - (75 + 75 + 105) = 105
Please help!!!! I need help woth the select the quadrent or axis where each order pair is located on the coorninate plane
Answer:
quadrant 11
quadrant 111
quadrant 1V
Step-by-step explanation:
How many terms are in the expression 3x + 5 - 4y O 1 O2 03
Answer:
3
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
the percent of sales tax is 6%. what is the total cost for a skateboard that cost $98. also, what is the sales tax?
$98×6/100
sales tax =$5.88
$98+$5.88
total cost =$103.88
What is the arc length of the partial circle?
Answer:
pi/2
Step-by-step explanation:
The arc length is based on the circumference
c = 2 * pi *r
C = 2 * pi *1 = 2pi
This is 1/4 of the circle so the arc length given is 1/4 of the arc length
arc length = 1/4 ( 2pi)
= pi /2
what’s the equation of the line shown above?
Answer:
answer is B)y=3x+2
Step-by-step explanation:
here ya go, have a nice day
btw if you can give me brainliest it will help a lot, thanks
Find the slope of the line that passes through -3,62 and 93,82
Answer:
5/24
Step-by-step explanation:
What is the measure of angle x?
Answer:
x = 47
Step-by-step explanation:
Because the angles of a triangle add up to 180, you can just use subtraction to find out what the missing angle is.
A piece rare worker is paid __
Nora planted 65 seeds. 80% of them sprouded. How many seeds sprouded
Answer:
52
Step-by-step explanation:
80%of65
(80/100)×65
52
In the figure shown below, if line l is parallel to line m, then x =
е l
200
65°
m
Answer:
115
Step-by-step explanation:
c
Answer:
Step-by-step explanation:
I need to do this no silly answers tho I’ll mark ❗️Brainlyist❗️ if answered correctly!!!
Answer:
that will be 270 ÷ 3 boy.....
Answer:
A
Step-by-step explanation:
[tex]3x \geqslant 270 \\ x \geqslant \frac{270}{3} \\ x \geqslant 90[/tex]
Plz help plz
What specific measure of a geometric figure is shown in the image?
A. A 15° angle
B. A 180 mm side length
C. A 165 mm side length
D. A 165° angle
Answer:
A 165° angle
Step-by-step explanation:
I zoomed in on the picture and it was a 165° angle
First to answer gets brainliest
Answer:
Answer choice three is correct
:) ur welcome!
what is b? Explanation and answer please.
Answer:
b=6
Step-by-step explanation:
line b + 14.5 is parallel to line 20.5
so 20.5= b + 14.5
b=6 when you subtract the 14.5
Which Quadrant does the point (-3, 4) belong to? A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV
Answer:
4
Step-by-step explanation:
52% of what number of 109
Answer:
209.615384
Step-by-step explanation:
Answer:
if you buy an item at $109 with $52 discounts, you will pay $57 and get 47.71% discount.
Step-by-step explanation:
How make minutes are in 2/3 ?
Answer:
To find 2/3 of an hour first we will divide 1 hour that is 60 minutes into 3 parts. So we will get 20 minutes. So we 2parts out of 3 parts of an hour so we get 20X2=40minutes
Step-by-step explanation:
Find the value of x.
x-11
x-5
A-8
.
A. 17
B. 20
C. 22
D. 15
Answer:
the answer is D hope it hleps
8
If u =
11i + 7j, v= -7i+ 11j find the dot product of u and v?
Let's solve for v.
v=−7i+11
Answer:v=−7i+11
Step-by-step explanation: Hope you understand. Hope this help :)
Let's simplify step-by-step.
11i+7j
There are no like terms.
Answer:=11i+7j
What type of punishment did the police officer give to the air pollution?
Answer:
Mistm Demeanor I think.. Hope this helps, tell me if it's incorrect!
Step-by-step explanation:
A police officer can not punish air pollution but can enforce laws and regulations to protect the environment.
What is air pollution?Air pollution means the presence of harmful substances in the air that can cause harm to all living beings.
We have,
Air pollution is not a living being so it can not be punished by a police officer.
A police officer or government authorities can enforce laws and regulations to reduce air pollution to protect all living beings and the environment.
Some of the measures are:
- Setting emissions standards for automobile and related industries
- Promoting the use of clean energy resources.
- Encouraging individuals and entities to adopt sustainable practices
Thus,
A police officer can not punish air pollution but can enforce laws and regulations to protect the environment.
Learn more about air pollution here:
https://brainly.com/question/18951513
#SPJ2
You and your friend go to an amusement park. You buy t tickets and spend $8 on food.Your friend buys t tickets and spends $12 on food. Is it possible that you and your friend spent the same amount at the amusement park.
Answer:
In the case of 4 tickets it can be possible
Step-by-step explanation:
Let us assume the number of tickets be t
Now as per the question the equations would be
For you = t + $8
For your friend = t + $12
In the case when you both spend the same amount so the above equations would be equivalent to each other
t + $8 = t + $12
So here the tickets would be 4 so this is possible that you both spend the same amounts
i need it rn plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
9514 1404 393
Answer:
∠B = ∠C = 138°
∠D = 42°
Step-by-step explanation:
Angles between the parallel bases are supplementary:
∠B = 180° -∠A = 180° -42° = 138°
Right-side angles are the same measure as their mirrors across the line of symmetry.
∠C = ∠B = 138°
∠D = ∠A = 42°
An unfair coin with a probability of tails as 0.55 is tossed 8 times. Find the probability that a tail shows up more than 2 times.
Answer:
0.9115
Step-by-step explanation:
Using a binomial probability function :
P(x =x) = nCx * p^x * (1 - p)^(n - r)
Probability of success, p = 0.55
1 - p = 1 - 0.55 = 0.45
n = 8
x = 2
P(x > 2 ) = p(x = 3) + p(x = 4) + p(x = 5) + p(x = 6) + p(x = 7) + p(x =8)
To save computation time, we could use the binomial probability calculator :
P(x > 2 ) = 0.9115
Please help in this
Explanation is in the file
tinyurl.com/wpazsebu
how many hours is one quarter of a day?
Answer:
6
Step-by-step explanation:
24/4 is 6, making there be six hours in a quarter of a day
are the ratios 2:3 and 10:18 equivalent
YES OR NO
Answer:
NO
Step-by-step explanation:
an equivalent ration to 2:3 would be 10:15. because when you simpliy 10:15 the most you can you would get 2:3. where as 10:18 is not equal
Yes they are equivalent