Answers
Answer:
Multiple Choice: 2 Points Each
Short Response: 4 Points Each
Step-by-step explanation:
This is a system of equations problem.
The way I solved it was by, first, organizing two equations.
m(23)+s(10)=86 and m(28)+s(5)=76
m = multiple-choice question points
s = short response question points
The first equation is your scores. m(23)+s(10)=86
You had 23 multiple choice questions and 10 short response questions. Your score on the test was 86.
The second equation is your friend's score. m(28)+s(5)=76
They had 28 multiple choice questions and 5 short response questions. They scored a 76 on the test.
Solve m(23)+s(10)=86;m(28)+s(5)=76
23m+10s=86 for m
Add -10s to both sides.
23m+10s+−10s=86+−10s
23m=−10s+86
Divide both sides by 23.
[tex]\frac{23m}{23}=\frac{-10s+86}{23}[/tex]
m=[tex]\frac{-10}{23} s+\frac{86}{23}[/tex]
Substitute [tex]\frac{-10}{23} s+\frac{86}{23}[/tex] for m in 28m+5s=76.
28m+5s=76
28( [tex]\frac{-10}{23} s+\frac{86}{23}[/tex])+5s=76
Simplify both sides of the equation.
[tex]\frac{-165}{23} s+\frac{2408}{23} =76[/tex]
Add [tex]\frac{-2408}{23}[/tex] to both sides.
[tex]\frac{-165}{23} s+\frac{2408}{23} +\frac{-2408}{23} =76+\frac{-2408}{23}[/tex]
[tex]\frac{165}{23} s=\frac{-660}{23}[/tex]
[tex]\frac{\frac{-165}{23}s}{\frac{-165}{23}}=\frac{\frac{-660}{23}}{\frac{-165}{23}}[/tex]
s=4
Substitute 4 for s in m=[tex]\frac{-10}{23}s+\frac{86}{23}[/tex]
m=[tex]\frac{-10}{23}s+\frac{86}{23}[/tex]
m=[tex]\frac{-10}{23}(4)+\frac{86}{23}[/tex]
Simplify both sides of the equation.
m=2
Answer:
m=2 and s=4
This is a lot of work. Can I please actually get brainliest?
Related Questions
Jane borrowed $800 from a bank for 4 years and was charged simple interest. The total interest that she paid on the loan was $160. As a percentage, what was the annual interest rate of her loan?
Answers
Ava borrows $600 to buy a bike at a yearly simple interest
rate of 2.25%. Ava borrows the money for 3 years. How much does Ava
pay in all?
Answers
Answer:
Ava has to pay in all $640.50
Step-by-step explanation:
.0225×600×3= $40.50
600+40.50=640.50
Hope this helps!
Find the total cost of these items, including tax. Round
to the nearest hundredth.
the
Water bottle:
Flashlight:
LE
EVE ELEVE
LE
EL
Answers
Answer:
Flashlight ; = $2.99
Water bottle = $1.50
Toothbrush = $1.29
Compass = $3.29
Step-by-step explanation:
Sales tax = 7%
Item: _____ price
Flashlight ; = $3.20
Water bottle = $1.61
Toothbrush = $1.38
Compass = $3.52
Total cost = price of item + sales tax
Sales tax = 7%
Total cost = (1 + 7%) * price of item
Total cost = (1 + 0.07) * price of item.
Total cost = 1.07* price
Flashlight = 1.07*1.29 = $3.20
Water bottle = 1.07*1.50 = $1.61
Toothbrush = 1.07*1.29 = $1.38
Compass = 1.07*3.29 = $3.52
(WILL GIVE BRAINLIEST)The coordinate grid shows a polygon. The figure is dilated
according to the rule: (x, y) → ( 3/2 x, 3/2'y). What is the
location of E'?
ANSWER CHOICES:
(4/3,3/4)
(2,8/3)
(9/2,6)
(6,9/2)
Answers
Answer:
i think it’s C
Step-by-step explanation:
i just did 3 times 3/2 then 4 times 3/2 i could be wrong cs i’m in 7th but that’s my best guess
Can someone help with work included!!
Answers
Answer:
Heather
Step-by-step explanation:
If you use pythagorean theorm you can set up the equations for each girl.
For Heather, 12^2+5^2=13^2 and you determine if this is true. Each side equals 169 so therefore the equation is true.
(Sorry, I forgot to post the graph on the last one) The table below shows the water temperature at certain depths of a lake. Using an logarithmic model, write an equation for the curve of best fit, then estimate the depth of water at a temperature of 50 degrees F.
Answers
Answer:
B
Step-by-step explanation:
Mrk me BRAINLIEST PLZZZZZZZZ
What is exactly between 2 and 3 on a number line?
A. 1.5
B. 3.5
C. 2.5
Answers
Answer:
2.5 my guy
Step-by-step explanation:
bcs if you have a line btwn 2 and 3, 2 and a half would be right in btwn it
Which pair of equations below is a result of constructing the altitude, h, in traingle ABC?
Answers
Answer:
sinA = h/c; sinC = h/a
Step-by-step explanation:
Which pair of equations below is a result of constructing the altitude, h, in Triangle ABC?
sinA= h/c
sinC= h/a
sinA= h/c
sinB= b/c
sinA= b/c
sinC= b/a
Solution:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as right angled, acute, obtuse and isosceles triangle.
In right angle triangle, one angle is 90°. From Pythagoras theorem, the square of the longest side (hypotenuse) is equal to the sum of the square of the two sides.
In right triangle, trigonometric identities are used to show the relationship between the sides of a triangle and the angles.
sinθ = opposite / hypotenuse, cosθ = adjacent / hypotenuse, tanθ = opposite / adjacent
Therefore in triangle ABC:
sinA = h/c; sinC = h/a
Answer:
A
Step-by-step explanation:
Hi! Does anyone know the answer to this question? I’m bad at geometry and I’m struggling to get the answer. Please help!
Answers
Answer:
8
Step-by-step explanation:
A^2 + B^2 = C^2
36+?=100
100-36= 64
Square root of 64 is 8
Cindy borrowed $950 to repair her car. She will pay the money back in 9 months at 9% simple interest. How much total money will Cindy repay?
Answers
Answer:
64.13
Step-by-step explanation:
7.13 would be the monthly interest, so mulitiplying that by 9 should give u a 64.13
A student takes a multiple-choice test with 8 questions on it, each of which have 4 choices. The student randomly guesses an answer to each question.
What is the probability that the student gets exactly 4 questions correct?
Round to 3 decimal places.
0.087
0.208
0.886
0.973
Answers
Answer:
The correct answer is 0.087
Step-by-step explanation:
Got it right on Edge assignment
I’ll give out brainlest to whoever answers this correctly!!
Answers
Answer:
7
Step-by-step explanation:
4x3.5=14
14x 1/2 = 7
Answer:
7 ft
Step-by-step explanation:
you multiply both sides so 4 x 3.5 = 14
and given it is a triangle you have to multiply by 1/2
so 14 x 0.5 = 7
that is your answer
Find the missing angle measures. This is 8th grade math btw
Answers
Answer:
w is 146
x is 90
y is 34
z is 56
Answer:
w = 146 degrees
x = 90 degrees
y = 34 degrees
z = 56 degrees
Step-by-step explanation:
Right angles will always add up to 90 degrees.
Straight lines will always add up to 180 degrees.
Since x is a right angle, x = 90 degrees.
Since z + 34 = 90 degrees (a right angle):
90 - 34 = z
90 - 34 = 56 degrees
Since x + y + z = 180 degrees (a straight line), simply plug in the numbers we have found already:
90 + y + 56 = 180
y = 180 - 90 - 56
y = 34
Since w + 34 = 180 degrees (a straight line):
180 - 34 = w
180 - 34 = 146 degrees
Match the Algebraic expressions with the type of transformation.
Answers
Answer:
2 no.reflection
6 no diliation
8 no reflection
7 no rotation
5 no rotation
3 no rotation
4 no translation
9 no translation
Step-by-step explanation:
A landscaper waters a lawn during the summer.
He wants to know how much water is being used
per minute. He records the amount of water used
in the table.
PLEASE NO LINK.
Answers
Answer:
Step-by-step explanation:
D bc yes
Can somebody help me out with my homework my grades are bad
Answers
Answer:
Ok I can help you out.
What is the homework?
Step-by-step explanation:
Hope I can help! :)
Please help me what is it
Answers
Answer:
13/14
Step-by-step explanation:
3/7 x 2/2 = 6/14
1/2 x 7/7 = 7/14
6/14 + 7/14 = 13/14
Answer:
1/14
Step-by-step explanation:
Larry hos
a $100 gift card to spend at a toy store.
He spends the same amount
every month on toys
When will be hove So left?
Explain how you know
Answers
Answer:
Well it can be multiple choices, but I say people are most likely to spend 25 dollars. So it will take him 4 months to have $0
Step-by-step explanation:
AGAIN PLZZZZZZ HELPP MEEEEEEEEE
Answers
Answer:
Hi, there your answer is
Question5: B.(x+3)(x-10)
Queston 6: D.(2x-2)(x+3)
Step-by-step explanation:
Pls answer fast pls pls test
Answers
Step-by-step explanation:
2a)3+x/4=5
or,12+x/4=5
or,12+x=20
or,x=20-12
therefore,x=8
Junie earns $7.25 working at The Dollar Mart. Junie is saving the money that she earns to purchase a computer that costs $450. Which inequality represents the number of hours (h) that Junie would have to work in order to have enough money to buy the computer?
A. 7.25 + h > 450
B. 7.25h > 450
C. 7.25h ≥ 450
D. 450 – h ≥ 7.25
Answers
The answer would be C
Please give brainliest of im right i need 3 more to rank up
Ari writes down two numbers. The total is 37. The difference between them is 14.
What are the numbers?
Answers
Answer:
11.5 & 25.5
Please mark as brainliest if answer is right
Have a great day, be safe and healthy
Thank u
XD
Please please help me please
Answers
Answer:
If the percentage is 20%, the down payment is $177,100
If the percentage is 10%, the down payment is $88,550
Step-by-step explanation:
This is a terrible question, in my opinion, unless they gave more information at the top of the page. A down payment on a house can be anywhere from 3.5% to 20%
Let's go with the 20%
885,500 x 0.20 = 177,100
-(23/47)
Which of the following is equivalent to the given number?
ASAP
Answers
Given:
The number is:
[tex]-(\dfrac{23}{47})[/tex]
To find:
The number that is equivalent to the given number.
Solution:
In option A,
[tex]-(-\dfrac{23}{47})=\dfrac{23}{47}[/tex] [tex][\because (-)(-)=(+)][/tex]
In option B,
[tex]\dfrac{23}{-47}=-\dfrac{23}{47}[/tex]
In option C,
[tex]\dfrac{-23}{-47}=\dfrac{23}{47}[/tex]
In option D, we have
[tex]\dfrac{23}{47}[/tex]
The numbers in options A, C and D are equivalent to [tex]\dfrac{23}{47}[/tex]. So, options A, C and D are incorrect.
The numbers in options B is equivalent to [tex]-(\dfrac{23}{47})[/tex]. So, option B is correct.
Therefore, the correct option is B.
need help ace plsssz
Answers
Answer:
150 multiply the 2 numbers
hope this helps
have a good day :)
Step-by-step explanation:
PLEASE HELP
the balance on an 8 year loan is 9,768. if the simple interest rate is 4% what did the principal borrow
Answers
Answer:
Step-by-step explanation:
what
Please help me with my work and I’ll give brainlessly
Answers
Answer:
Step-by-step explanation:
volume=15×5×5+8×4×5+8×4×5
=375+160+160
=695 m³
Answer:
695 m^3
Step-by-step explanation:
With this object, there are three rectangular prisms. The equation to find the volume of them is L*W*H.
So, with the small one in the front, the sides are 8, 4, and 5, so do:
8*4*5 ---> 160
Next, with long middle one, the sides are 5, 5, and 15, so do:
5*5*15 --->375
Then, with small one in the back, 8, 4, and 5 again, so do:
8*4*5 ---> 160
To finish it off, add them all together.
160 + 375 + 160 = 695 m^3
Which represents the solution set to the inequality 5.1(3 + 2.2x) > –14.25 – 6(1.7x + 4)? x < –2.5 x > 2.5 (–2.5, [infinity]) (–[infinity], 2.5)
Answers
Answer:
x > -2.5 (-2.5, infinity)
Step-by-step explanation:
Given the inequality expression
5.1(3 + 2.2x) > –14.25 – 6(1.7x + 4
Expand
15.3 + 11.22x > -14.25 - 10.2x - 24
15.3 + 11.22x > -38.25 - 10.2x
Collect the like erms
11.22x + 10.2x > -38.25 - 15.3
21.42x > -53.55
x > -53.55/21.42
x > -2.5 (-2.5, infinity)
This gives the required solution
Answer:
(-2.5, infinity)
Step-by-step explanation:
correct on EDG
An artist receives royalties for all digital downloads of his music. For the first 10,000 downloads, the artist receives $10,000. He receives $12,500 for the next 10,000 downloads, $15,000 for the next 10,000 downloads and so on. How much money will he receive if his music is downloaded 500,000 times?
Answers
Answer:
Step-by-step explanation:
This is a linear relationship. We know this because as the number of songs increases by 10,000 the amount of money increases $2500. We can use that relationship in a proportion, which is a method used to solve problems involving directly proportional numbers.
If we arrange our information such that the dollars earned are on the top of the fraction and the number of songs that need to be downloaded to earn that amount of money is on the bottom of the fraction, here is what we have:
[tex]\frac{2500}{10,000}[/tex]. This means that the artist receives $2500 for every 10,000 downloads. Keeping in that pattern, we can find out how much money he will earn when 500,000 downloads are completed, assuming that the amount he earns per 10,000 songs doesn't change.
[tex]\frac{2500}{10000}=\frac{x}{500000}[/tex] and cross multiply to get
10,000x = 1250000000 and divide to get
x = 125,000
That is the amount that he will earn from 500,000 downloads.
[tex]\frac{$}{#}[/tex]
Find the circumference.
Use 3.14 for it.
r = 5 cm
C = [?] cm
C= Ttd
Answers
Answer:
C=2(3.14)×(5)
C=31.4cm
The circumference of circle is 31.4 cm
What is circumference of circle?"It is the distance around the perimeter of a circle."
Formula for circumference of circle:"C = 2 × π × r,
where r is the radius of the circle."
For given question,
We have been given the radius of a circle.
r = 5 cm
We need to find the circumference of circle.
Using the formula for circumference of circle,
⇒ C = 2 × π × r
We need to use π = 3.14
⇒ C = 2 × 3.14 × 5
⇒ C = 2 × 5 × 3.14 ...............(since a × (b × c) = (a × b) × c)
⇒ C = 10 × 3.14
⇒ C = 31.4 cm
This means, the circumference of circle having radius r = 5 cm
is C = 31.4 cm
Therefore, the circumference of circle is 31.4 cm
Learn more about the circumference of circle here:
https://brainly.com/question/15195443
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