Answers
Related Questions
3. Adam bought 3 pens and 4 pencils for $4.25. Lily bought 2 pens and 6 pencils for $4.50. How much is a pen? a pencil?
Answers
Let x = pen
Let y = pencil
3x + 4y = 4.25
2x + 6y = 4.50
Make both coefficients equal
(3x + 4y = 4.25) * 2
(2x + 6y = 4.50) * 3
6x + 8y = 8.5
6x + 18y = 13.5
Subtract both sides
-10y = -5, y = 0.50
3x + 4(0.50) = 4.25
3x + 2 = 4.25
3x = 2.25, x = 0.75
Pen = $0.75
Pencil = $0.50
A light post is 4 ft tall and cast a shadow of 5 ft. Find the distance between
the top of the post and the end of the shadow.
O 9 ft
O 6.4 ft
O 3 ft
O 4 ft
Answers
Answer:
6.4 ft
Step-by-step explanation:
Let “a” be the light post height
Let “b” be the length of the shadow
Let “c” be the distance from the top of the light post to the end of the light post’s shadow.
Then:
(a X a) + (b X b) = c X c
The Pythagorean Theorem will work pretty well here:
(4 X 4) + (5 X 5) = 16 + 25 = 41
The square root of 41 is: 6.4023
So, about 6.4 ft from the top of the post to the end of the shadow
Answer:
6.4ft
Step-by-step explanation:
Adealer gained a 10% profit by selling an article for birr 330.00 .What was the original price of the article
Answers
Answer:
$297
Step-by-step explanation:
Given data
Percent profit=10%
sales price= $330
% profit= (sales price-cost price)/sales price* 100
let the cost price be x
Substitute
10= (330-x)/330* 100
cross multiply
10= (33000-100x)/330
10*330= 33000-100x
3300=33000-100x
3300-33000=-100x
-29700=-100x
29700=100x
x=29700/100
x=297
Hence the cost price is
cost price=$297
helpppp needed
tysm for everyone helping btw :)
i put points at 35 xx
Answers
Answer:
10ft.
Step-by-step explanation:
1yd = 3ft.
3yd = 9ft. + 1ft= 10ft.
Answer:
I think the answer is 3.04800
or just 10ft.
5k(k-9)=0 solve for k
Answers
Step-by-step explanation:
5k²-45= 0
5k²= 0 +45
k²= 45/5
k²= 9
or
k = 9/2 = 4.5
Pls give answers to these I will mark branliest
Answers
Answer:
I can answer the first 5 for you :)
1: 1,019,536
2: 892,850
3:20,215,692
4:274,728
5:227,376
Have a great day!!!!
There are 645 students at Tech Middle School, and
20% of the students are th graders, How rising
Students are 7th graders? ?
Answers
Answer:
.20
Step-by-step explanation:
The word percent literally means "Out of 100". With that being said, 20% can be written as a fraction, mixed number or whole number as follows: 1/5 (fraction), 20/100 (mixed number) or .20 (whole number).
Can sides of a triangle have lengths 1, 13, and 14 ???
Answers
Answer: Yes it can!
Step-by-step explanation:
This is called a scalene triangle, where all 3 sides are different lengths.
Which of the following are parallel to
y = 3x – 2
(Choose all that apply)
y = 5 – 3x
Y= 3x
y = 3x – 1
y = 3x – 4
y = -3x
Answers
y = 3x - 1
y = 3x - 4
i’m pretty sure in order for lines to be parallel, they have to have the same slope but different y- intercepts
Answer:
y=3x-1,y=3x-4
Step-by-step explanation:
y=mx+c
where is gradient, parallel lines have same gradient
y=5-3x
=-3x+5
m=-3
y=-3x
m=-3
y=3x-1
m=3 ,the gradient is equal to the original equation
y=3x-4
m=3,the gradient also equal to the given equation
The length of a rectangle is 9 centimeters more than half
the width. Find the length if the perimeter is 60 centimeters.
Answers
Answer:14 width length 16
Step-by-step explanation: 14 is the width if u double it you get 28 and yo need 32 more so 14 / 2 + 9 = 16 and double that gets 32 soo boom
A large bag of marbles contains red (R) and blue (B) marbles. Marbles are pulled one at a time, recorded, and placed back in the bag. Estimate the percentage of blue marbles in the bag.
R R R B R R R R R R B R R R B
A. 60%
B. 80%
C. 25%
D. 20%
Answers
Answer: 20%
Step-by-step explanation:
3/15= 1/5= 20%
The weight of 4 eggs is shown. Identify the constant of proportionality of total weight to number of
eggs.
The weight of 4 eggs is 188 g
Answers
Answer:
47g
Step-by-step explanation:
I need 5
This is the picture..
Answers
Answer:
What are the options?
CPCT?
If the number of bacteria in a colony doubles every 27 hours and there is currently a population of 2,000 bacteria, what will the population be 54 hours from now?
Answers
starts at 2,000
27 hours: 4,000
54 hours: 6,000
hello please help i’ll give brainliest
Answers
Find the perimeter of the figure to the nearest hundredth.
12 in.
5 in.
5 in.
9 in.
perimeter: about
in.
Answers
Answer:
50.28 inches
Step-by-step explanation:
From the Image, we can find the length of the arc of the semi-circle by dividing the circumference of the resulting circle by 2
Radius= 9in
C= 2πr
C=2*3.142*9
C=2*3.142*9
C= 56.556 inches
Hence the length of the arc is
=56.556/2
=28.278 inches
The perimeter of the shape
=28.278+5+12+5
=50.28 inches
Answer:
its actualy 50.26, but follow what the guy before me did.
Step-by-step explanation:
A store at the mall is having a sale of 30% off all coats, "c". The expression 0.7c describes the discounted price in dollars for a coat. Which expression also describes the discounted price in dollars, for a coat?
A. 0.7c
B. c - 0.7c
C. c - 0.3c
D. c - 0.3
Answers
Answer:
c
Step-by-step explanation:
wo
Points A, B, C, and D are plotted on the number line.
ABC D
tott
-0.6 -0.4 -0.2
-0.8
Which point is plotted at -0.45?
A
Answers
Answer:
D.
Step-by-step explanation:
The answer is D because it is "-0.4" it doesn't show the 5 at the end but that doesn't mean that its not there.
Hope this helped :)If you have anymore questions please ask.help I don't understand
Answers
Answer:
Sequence: Reflection over the y-axis, then 1 to the right and 2 down to get the triangle ABC to A'B'C.
Step-by-step explanation:
Have a nice day!
Please help fast!
Solve 2/3x-1/5>1
X>?
Answers
Answer:
x > 9/5
Step-by-step explanation:
2/3 x - 1/5 > 1
15 × 2/3x - 15 × 1/5 > 15 × 1
10x - 3 > 15
10x > 18
x > 18/10
x > 9/5
A bookcase contains these books. 36 cookbooks 17 autobiographies
39 novels 22 reference books One book is selected at random from the bookcase. Based on the information, which statement is true?
A The book is twice as likely to be a cookbook as a reference book.
B The book is just as likely to be a novel as it is to be an autobiography or a reference book.
C. The book is more likely to be a cookbook than a novel.
D. The item is half as likely to be a reference book as a novel.
Answers
Answer:
A
Step-by-step explanation:
A teacher is interested in students' opinions about an upcoming school dance. Which of the following techniques
uses systematic random sampling?
Survey the first 10 students who arrive.
Survey every 10th classroom as the teacher walks down the hallway.
Survey the 10th student arriving at school (with the number 10 being randomly chosen), then survey every 12th
student after that
O Survey the 10th student arriving at school (with the number 10 being randomly chosen), then survey every other
boy and every other girl after that.
Answers
Answer:
think its c but not sure
Step-by-step explanation:
because it repeats its self to get i sample
Answer and Step-by-step explanation: yes it's C i got it right so did the person above me
A triangle has sides with lengths of 12 centimeters, 16 centimeters, and 20 centimeters. Is it a right triangle?
Answers
Answer:
yes
Step-by-step explanation:
The bases are right triangles with side lengths of 12 centimeters, 16 centimeters, and 20 centimeters.
Answer:
yes
Step-by-step explanation:
If you use the formula [tex]a^{2} +b^{2} =c^{2}[/tex] you get 20 which confirms that is a right triangle
What expression is equivalent to 6(3x + 7)
Answers
6(3x + 7)
X = 2
auihaiodg[aijg[aoidjg[aiogj[aiosjdg[ioajsg[io [aioj[oisdjg[i ajs[ia [iogja[ idfg[aidj fg[iajag[piojdg[ isj [i ja[j [ija [i j
Answer:
18x+42
Step-by-step explanation:
Hello, to find an equivalent expression to your problem, you would distribute 6 to 3x+7 (Remember, distribute means multiply). After distributing, you get the answer which is 18x+42.
A box contains 2 red marbles, 3 white marbles, 4 green marbles, and 1 blue marble find the probability of selecting a white marble in the first draw and a red marble in the second draw
Answers
Answer:
Answers
Selecting a green marble on the second
draw if the first marble is blue.
Answer:
Selecting a white marble on the first
draw and red marble on the second
draw.
Answer:
Selecting a red marbles on both draws.
Answer:
Selecting a red or white on the first
draw and green or blue on the second
draw.
Answer:
Selecting a white marble on the first
draw and a white or blue on the second
draw.
Step-by-step explanation:
if y=5 x=9 find m and solve y=m+3x
Answers
Answer:
- 22
Step-by-step explanation:
Given
y = 5 and x = 9
then
y = m + 3x
5 = m + 3 * 9
5 = m + 27
m = 5 - 27
m = - 22
hope it helps :)
Which number line shows the solution to the inequality 4x + 5 >9?
Answers
Answer:
C.
Step-by-step explanation:
Ms. Gonzales is investing $17000 at an annual interest rate of 6%
compounded continuously. How much money will be in the account after
16 years? Round your answer to the nearest hundredth (two decimal
places).
Answers
Answer:
$30444.41
Step-by-step explanation:
→ Work out compound interest
(100 + 6) ÷ 100 = 1.06
→ Multiply the amount by the money
17000 × 1.06
→ Find how many years it is for
17000 × 1.06¹⁰ = 30444.41
Help? I don’t understand it mainly cause HOW ARE YOU SUPPOSED TO
Answers
Answer:
83
supplementary is two angles that add up to 180 so 180 - 97= 83
Dillon deposited 3/4 of his paycheck
into the bank. The deposit slip shows how much he deposited.($46.50)
Write and solve an equation to find the amount of his
paycheck.
Equation:
Solution:
Answers
Answer:
His paycheck was $62.
Step-by-step explanation:
3/4 x = 46.5
x = 46.5 * 4/3
x = 62
Equation: 3/4 x = 46.5
Solution: x = 62