Answer:
70x + 5y = 805
Step-by-step explanation:
Textbooks = X
Notebooks = Y
Lila evaluates the expression using the following steps:(−7.13+63.97)+(−54.8−3.4)−71.1+(−58.2)−129.3Describe the error that Lila made.
Lila's error was that she added -7.13 to 63.97 to get -71.1
Lila steps are as folows
(−7.13 + 63.97) + (−54.8 − 3.4) = −71.1 + (−58.2) = −129.3
In the first bracket, Lila was suppose to subtract 7.31 from 63.97 since there is a negative in front of 7.31.
So, the correct expression should be
(−7.13 + 63.97) + (−54.8 − 3.4) = 56.84 + (−58.2) = 56.84 - 58.2 = −1.36
So, Lila's error was that she added -7.13 to 63.97 to get -71.1
Learn more about addition and subtraction here:
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Please help if u can’t read:
It cost $8 to sign up for a music download. Service and $0.7 to download music. Complete the table showing how jada can spend money downloading songs.
Answer:
4=11
$19.25=15
30=$38.75
Simplify to the form of a square root of b
Answer:
If we substitute a and b to equal 6 for example
it would be
√
6
2
+
6
2
it would equal 8.5(1.d.p) as it would be written as
√
36
+
36
giving a standard form as
√
72
However if it was
√
6
2
+
√
6
2
it would equal 12 as the
√
and
^
2
would cancel out to give the equation 6+6
Therefore
√
a
2
+
b
2
cannot be simplified unless given a substitution for a and b.
I hope this isn't too confusing.
Step-by-step explanation:
Pencils cost $1.75 at the back-to-school sale (they are super cool pencils). You already
spent $2 on a journal for your math class. You have $23 total to spend. How many
pencils can you afford?
Step-by-step explanation:
1.75×13
=22.75
that means You can afford 13 pencils
Mark Me as brainliest(18q5 – 17q3 + 9 – 15q6) – (–2q3 – q2 + 13q4)
Answer:
– 15q6 + 18q5 - 13q4 - 15q3 + q2 + 9
Step-by-step explanation:
(18q5 – 17q3 + 9 – 15q6) – (–2q3 – q2 + 13q4)
(18q5 – 17q3 + 9 – 15q6) +2q3 + q2 - 13q4
18q5 – 17q3 + 9 – 15q6 +2q3 + q2 - 13q4
18q5 - 15q3 – 15q6 + q2 - 13q4 + 9
– 15q6 + 18q5 - 13q4 - 15q3 + q2 + 9
A woman bought 50 meters of cloth at 6000 and she sold the cloths at 150 per meter find her Percentage profit or loss
Answer:120
Step-by-step explanation:120 x 5 =6.000=6000
Describe a situation and write an equation that you could use in your everyday life.
Answer:
Variable Costs
Step-by-step explanation:
Imagine that you are taking a taxi while on vacation. You know that the taxi service charges $9 to pick your family up from your hotel and another $0.15 per mile for the trip. So you simply make an equation as y = 0.15x+9. Math is also used in stocks we use math daily in our life, calculating prices for something we use basic multiplication and addition almost everyday.
write in Egyptian numerals 412
Answer:
Step-by-step explanation:
Find the value of e.
Step-by-step explanation:
sum of three angles in a triangle is 180
55+35+x=180
90+x=180
x=180-90
x=90
which expression represents the situation
Answer:
12p = 48
Explanation:
There are 48 photos total, so multiply 12 pages, times the number of photos on each page to find the total number of photos.
what is the slope of the line?
During the evaporation
experiment, Sample A lost 0.983
grams, Sample B lost 0.092 grams, and
Sample C lost 0.979 grams. Place the
samples in order from least weight lost
to most weight lost.
Answer:
- 0.092g
- 0.979g
- 0.983g
Explanation: 0.83 > 0.979 > 0.092
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Sample lost is equal to ~
[tex]0.983 \: g \: (sample \: \: 1)[/tex][tex]0.092 \: g \: (sample \: \: 2)[/tex][tex]0.979 \: g \: (sample \: \: 3)[/tex]If we arrange it in order from least weight lost to most weight lost, we will get ~
[tex] \fbox{Sample 2 < Sample 1 < Sample 3}[/tex]18c) Find the value of x in each case.
Answer:
x = 22.5°
Step-by-step explanation:
m∠DEA = 2x
DE || AB
m∠EAB = 2x - by Alternate Interior Angles
Exterior angle = 6x, which equals 2x + 4x
m∠BEA = 4x
Exterior Angle 4x = 2x + 2x
m∠B = 2x
2x + 4x + 2x = 180°
8x = 180°
x = 22.5°
Exterior Angles of a Triangle:An exterior angle of a triangle is equal to the two REMOTE angles inside the triangle.
In this example, we know that 6x has remote angles of ∠EAB and ∠BEA
We found out that m∠EAB = 2x, so m∠BEA must equal 6x - 2x or 4x
Sum of angles in a Triangle:The sum of all angles in a triangle is equal to 180°.
In this example, we found all the angles, 2x, 4x, 2x. We added all of those values to equal 8x
Since the sum of all angles = 180°:
8x = 180°
x = 180°/8
x = 22.5°
-Chetan K
Give the digits in the tens place and the tenths place.
74.89
Answer:
7 is in the tens place
.8 is in the tenths place
Step-by-step explanation:
Rounded:
75
Answer:
Step-by-step explanation:
74.89
Tens place = 4
Tenths place = 8
PLEASE HELP DUE NOW!!!
WILL MARK BRAINLIEST!!!!
Answer:
(-5, 3)
Step-by-step explanation:
x = -5
-5x - 10y = -5
Subsitute for x = -5
-5(-5) - 10y = -5
25 - 10y = -5
subtract 25 from both sides
-10y = -30
divide both sides by -10
y = 3
Which equations best shows 48 is a multiple of 3
Answer:
48/3=18
Step-by-step explanation:
It looks like there's a list of answers missing, but any answer that most simply shows that 48 can be divided by 3 would be right (the answer is an example).
The probability that Jessica is on time for a given class is 64 percent. If there are 53 classes during the semester, what is the best estimate of the number of times out of 53 that Jessica is on time to class? Round your answer to the nearest integer.
Provide your answer below:
Using the principle of probability, the estimated number of times Jessica will be on time is 34.
Given the Parameters :
Probability of being on time, p = 64% = 0.64Total number of classes, n = 53The best estimate for the number of times Jessica will be on time can be calculated thus :
Mean = npHence, we have ;
Mean number of times = (0.64 × 53)
Mean number of times = 33.92
Hence, the estimated number of times Jessica will be on time is 34.
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Help I have a C in math. I don't understand this Alegbra. If you get it right then I will give you Brainlist!
I know I already got the right answer so please give an explanation too!
Answer:
11
Step-by-step explanation:
to find the area of a square: base times height, we know that all sides of a square are the same. So, 11*11
=121, the answer is 11
Answer:
11 in.
Step-by-step explanation:
The canvas has the shape of a square.
The area of a square is the side times the side, but since in a square, all sides have equal lengths, then the area of a square is the square of the side.
You are given the area. You need to find the side.
The area is the square of the side, so the side is the square root of the area.
side = √area
side = √(121 in.²)
side = 11 in.
The graphs of these two equations intersect in how many points?
[tex]x^{2} +y ^ {2}=25[/tex]
[tex]x^{2} -y ^ {2}=3[/tex]
Answer:
They intersect 4 times.
Step-by-step explanation:
When graphed, the first equation is a circle with a center resting at (0,0)
The second equation intersects the circle at (-3.7,3.3), (3.7,3.3), (3.7,-3.3), (-3.7,-3.3)
Nicole is playing a video game where each round lasts 7/12 of an hour. She has scheduled 3 3/4 hours to play the game.
How many rounds can Nicole play?
Answer:
6 3/7
Step-by-step explanation:
which of the following pairs of sets given below are equal?
Answer:
hi there is that OK for.
Step-by-step explanation:
ok bye por and thanks again and.
Refer to the table. Determine the percent of all voters that did not vote Republican or Democrat but voted "other" instead. Round your answer to the nearest tenth of a percent.
use the given conditions to write an equation!!!!
Twice the sum of five and a number is 36
Answer:
2(5+x)=36
Step-by-step explanation:
Answer:
N+5=36
Step-by-step explanation:
hope this helps good luck!
what is the answer please
Answer:
Step-by-step explanation:
ΔABE ~ ΔACD
In similar triangles, corresponding sides are in same ratio.
[tex]\dfrac{AE}{AD}=\dfrac{AB}{AC}\\\\\\\dfrac{12}{18}=\dfrac{9}{9+x}[/tex]
[tex]\dfrac{2}{3}=\dfrac{9}{9+x}[/tex]
Cross multiply,
2*(9+x) = 3*9
2*9 + 2*x = 27
18 + 2x = 27
2x = 27 - 18
2x = 9
x = 9/2
x = 4.5
14. Explain why a rotation of positive 180 degrees is the same as a rotation of -180 degrees.
Answer:
t is the same because...
Step-by-step explanation:
turning -180 is like turning right turning left no matter how you turn you will still be in the opposite from which you started
Which three transformations described will result in a figure that has the same side lengths and angles as quadrilateral ABCD?
y
B
4
А
2-
D
O
4
4
c
-4
a vertical stretch by a factor of 3
a rotation of 90° clockwise about the origin
a reflection across the y-axis
a dilation by a factor of 1
Answer:
a translation 4 units right and 3 units up
a reflection across the y-axis
Step-by-step explanation:
on plato^ only got 2/3 right but its not this:
a vertical stretch by a factor of 3 (since . i got it wrong)
a horizontal stretch by a factor of 4( i also got this wrong on my second attempt)
Therefore the third one has to be one of these:
a dilation by a factor of 1/4
a rotation of clockwise about the origin
Answer:
A translation 4 units right and 3 units up
A reflection across the y-axis
A rotation of 90 degrees clockwise about the origin
Step-by-step explanation:
84 divided 5,376 ? (Show work)
Answer:
64
Step-by-step explanation:
6 4
8 4 5 3 7 6
- 5 0 4
3 3 6
- 3 3 6
0
Which are equivalent to 2 3/4 x 8/9? Check all that apply.
Answer:
The second, fourth one
Step-by-step explanation:
2nd: First thing you need to do is make 2 3/4 into a fraction so you would multiple 4x2 and add 3 which gives you 11. So you get 11/4 x 8/9
4th: Using the number from the 2nd you gte 11/4 x 8/9. WHen you multiple fractions you multiply straight accross so 11x8 and 4x9 which gives you 88/36
2. Use any strategy to multiply.
a. 4 x 79
Suppose that your saving account earns interest at an APR of 1.8%, compounded daily. Determine the annual percentage yield (APY) of your saving account.
