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Related Questions
A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation. x + y = 24 3x + 5y = 100 What does the solution of this system indicate about the questions on the test? The test contains 4 three-point questions and 20 five-point questions. The test contains 10 three-point questions and 14 five-point questions. The test contains 14 three-point questions and 10 five-point questions. The test contains 20 three-point questions and 8 five-point questions.
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Answer:
Step-by-step explanation:
Solve the system of equations
x + y = 24 both sides times 3 3x + 3y = 72
3x + 5y = 100
3x + 3y = 72 subtract the bottom equation from the top one
0x + 2y = 28
y = 14 five point questions 70 points
x + 14 = 24 the first equation with y set to 14
x = 10 three point questions 30 points
Can someone please give me the answers I will mark you brilliant as soon as it pops up
Answers
Answer:
1.) [tex]=50x+30y[/tex]
2.? The first one
Step-by-step explanation:
1.)[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac[/tex], [tex]a=10,\:b=5x,\:c=3y[/tex]
[tex]=10\cdot \:5x+10\cdot \:3y[/tex][tex]=50x+30y[/tex]
2.) The first one
The front view of a square pyramid is in the shape of a triangle that
has a base of 30 yards and a height of 40 yards. What is the area
of the front view of the square pyramid?
600 sq yards
0 1200 square yards
250 yards
600 yards
Answers
Answer:
600 sq yards
Step-by-step explanation:
font view as in on triangle
30*40/2 = 600
B*H/2 = area of triangle
A snake catches and eats a small field mouse. Later that day, a hawk catches the snake and eats it.
Which three terms describe the snake?
Answers
Answer:
Consumer, predator, and prey.
Step-by-step explanation:
The consumer is the mouse because the snake is eating the mouse and the predator to the snake and the hawk is the eating the snake which is the snake is the hawks prey.
Please give me brainliest! Hope I helped!
PLEASE HELP AGAIN. IM TIMES
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Answer:
u didnt put any questions
Step-by-step explanation:
Find 0% of 60:
Find 100% of 60:
Find 50% of 60:
Find 25% of 60:
Find 75% of 60:
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Answer:
Find 0% of 60: 0
Find 100% of 60: 60
Find 50% of 60: 30
Find 25% of 60: 15
Find 75% of 60: 45
Step-by-step explanation:
hi can anyone please help me with number 10
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Answer: (1.5, 1.2) are the coordinates and the distance is 4 graph across the paper.
Step-by-step explanation:
If you reflect it across the x-axis you get two positives and no negative becouse in a graph paper there are four diffrent groups your nswer is on the top right side.
Link= REPORT
Х
5 ft.
8 ft. M
24 ft.
(A) 13
(B) 15
(C) 17
(D) 11
Please someone help!!
Answers
Answer:
I think the answer is c
explanation:
A special CPI is constructed to measure the variation of these products, so that coffee and bread have a weight of 0.35 of the total and egg, ham and cheese 0.1 of the total. variation of the CPI?
Answers
9514 1404 393
Answer:
The CPI increased 3.42% in Month 2.
Step-by-step explanation:
In a spreadsheet, the weighted sum is easily computed using the SUMPRODUCT( ) function. It multiplies the corresponding values of two arrays, then returns the sum of those products. If one of the values is a weight, then the result is a weighted sum.
Your CPI is computed as the weighted sum of the prices of the individual products. The percentage change is computed in the usual way:
pct change = ((new value)/(old value) -1) × 100%
Of course, the spreadsheet can format a fraction as a percentage, so the computation of the change can stop after 1 is subtracted from the ratio.
A group of Americans participated in a study that involved taking their temperatures during exercise in extreme heat. The participants had a mean body temperature of 104^{\circ} \text{F}104 ∘ F104, degrees, start text, F, end text and a standard deviation of 2^{\circ} \text{F}2 ∘ F2, degrees, start text, F, end text. Doctors analyzing the results prefer to work in degrees Celsius, so they convert the data by applying the formula below to each data point: ^{\circ}\text{C}=\dfrac59(^{\circ}\text{F}-32) ∘ C= 9 5 ( ∘ F−32)degrees, start text, C, end text, equals, start fraction, 5, divided by, 9, end fraction, left parenthesis, degrees, start text, F, end text, minus, 32, right parenthesis If each temperature is converted to degrees Celsius, what will be the mean and standard deviation of the distribution of new temperatures?
Answers
Answer:
the mean is 40 degrees celcius
standar deviaton is 1.11 degrees Celsius
Step-by-step explanation
khan academy
The temperature values of the participants in celcius are :
Mean = 40°CStandard deviation = - 16.67°CInformation about body temperature :
Mean = 104°F
Standard deviation = 2°F
To convert to Celsius temperature :
°C = 5/9(°F - 32)
To temperature values in °C :
Mean temperature :
°C = 5/9(104 - 32)
°C = 40°C
Standard deviation of temperature :
°C = 5/9(2 - 32)
°C = - 16.67°C
Hence, the temperature values in Celcius are : 40°C and - 16.67°C
Learn more : https://brainly.com/question/18112348
2. Use the distributive property to write an expression that is equivalent to 12 + 4x.
Answers
Answer:
4(x+3)
Step-by-step explanation:
So with the distrubutive property, you look at the numbers you have, and then take the greatest common factor between the two.
So lets think about it, what goes into both 12 and 4?
2 does, but is that the greatest common factor? No.
What about 4? That goes into 12 and 4. Is it the greatest common factor? Yup it is.
So, what do we get when we take 4 from 4x? We get 1x, or just x.
How about 12? Well, when we take 4 from 12, we get 3.
Now, lets take the common greatest factor, and our two new numbers and put them back into the expression.
Remember that the greatest common factor, the one you took from the other numbers, is what goes first:
4()
Remember to put the parethese there, or else you would only be multiplying the first number by 4, and not the second.
Next lets put the other numbers in. In most expressions, you should put the x number in first, and the normal number in second. So it should now be:
4(x+3)
This is your expression.
Hope this helps! ;)
9514 1404 393
Answer:
4(3 +x)
Step-by-step explanation:
The greatest common factor is 4, so any divisor of that can be factored out:
12 +4x = 2(6 +2x) = 4(3 +x)
Gloria, Teresa, and Rebecca went to an office supply store. Gloria bought 8 pencils, 4 markers, and 6 erasers. Her total was
$22.00. Teresa spent $19.25 buying 5 pencils, 7 markers, and 8 erasers. Rebecca bought 5 pencils, 5 markers, and 4
erasers for $15.75. What is the cost of each item?
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Can someone help me? I am stuck on this question I would mean the world if u helped me! and tysm for the people who helped me!
Answers
Answer:
$10.10
Step-by-step explanation:
0.25 × 27 = 6.75
0.10 × 26 = 2.60
0.05 × 15 = 0.75
6.75 + 2.60 + 0.75 = $10.10
The sum of N and the product 5 times n is 24. What is the value of n?
Answers
Answer: n = 4
Step-by-step explanation:
We will first write a mathematical equation to represent the situation. Then, we will solve it.
The sum of n → Sum means addition, so "n +"
product of 5 times n → Product and times means multiplication, so "5n"
is 24 → Is represents equals, so "= 24"
The sum of N and the product 5 times n is 24 → n + 5n = 24
Now that we have our equation, we can solve. We will do this by adding n and 5n, then dividing both sides of the equation by 6.
n + 5n = 24
6n = 24
n = 4
Beginning at 8:30 A.M., tours of the National Capitol and
the White House begin at a tour agency. Tours for the
National Capitol leave every 15 minutes. Tours for the
White House leave every 20 minutes.
a) How often do the tours leave at the same time?
b) When is the next time the two tours will leave at
the same time?
Answers
Answer:
Step-by-step explanation:
if both tours start at 8:30 A.M, the NC (National Capitol) 8:45, and the WH (White House) leaves at 8:50.
NC
08:45 08:50
09:00 09:10
09:15 09:30
09:30 09:50
09:45 10:10
10:00 10:30
10:15 10:50
10:30 11:10
10:45
11:00
Both tours leave at 9:30, and then away at 10:30.
They leave at the same time every hour.
if the area is 48 square meters what is the length of side R in meter
Answers
Answer:
12 m
Step-by-step explanation:
the area of a rectangle is length x width
we know the width, so we can proceed like this:
Lenght = A/width
Lenght = 48/4 = 12 m
Jack has a bag of coins. The bag
contains 8 dimes, 4 nickels, 3
pennies, and 1 quarter. He will
randomly select 2 coins from the bag
at one time without replacement
What is the probability that Jack will
select 2 dimes?
a. 15/23
b. 7/30
c. 5/9
d. 1/2
Answers
Answer:
i think 1 half sorry if i am wrong
Step-by-step explanation:
2. Which of the following congruence statements is true?
(A) A = B
(B) CE = DE
(C) AED = CEB
(D) AED = BEC
GEOMETRY
Answers
Answer:
D)
hope it helps..........
Answer:
D is the correct answer
hope it is helpful to you ☺️☺️☺️
you pick random 6,7,8,9 what is P(9)
Answers
Step-by-step explanation:
There are a total of 4 numbers to pick.
P(9) means is the probability of you picking the number 9.
Since you are only picking one number, the probability will be 1/4 or 0.25
Ms. Nelson wants to buy a stair runner carpet to make it easier for her dog, Max, to go up and down the stairs. There are 15 stairs in Ms. Nelson's staircase, and each stair needs 60 centimeters of carpet. How many meters long will Ms. Nelson's stair runner be?
Answers
Find total centimeters by multiply total steps by centimeters per step:
15 x 60 = 900 centimeters total needed.
Convert centimeters to meters by dividing total centimeters by 100:
900/100 = 9
He will need 9 meters
Answer:
Ms nelson need 900 centimeters of carpet
Step-by-step explanation:
15 times 60 cm = 900cm
In a survey of 12 people, it was found that an average of $36 was spent on their child's last birthday gift with a standard deviation of $11. Estimate the mean amount people spend on their child's last birthday gift with 80% confidence using the appropriate critical value to three decimal places. Enter your answer as equations or as numbers rounded to four decimal places.
Answers
Answer:
(27.3692 ; 44.6308)
Step-by-step explanation:
Mean, xbar = 36
Standard deviation, s = 11
Sample size, n = 12
Tcritical at 0.2, df = 12 - 1 = 11 ; Tcritical = 2.718
Confidence interval :
Xbar ± Margin of error
Margin of Error = Tcritical * s/sqrt(n)
Margin of Error = 2.718 * 11/sqrt(12) = 8.6308
Confidence interval :
Lower boundary : 36 - 8.6308 = 27.3692
Upper boundary : 36 + 8.6308 = 44.6308
(27.3692 ; 44.6308)
Solve the equation 23+n=29 using the inverse operation.
Answers
Answer:
n=6
Step-by-step explanation:
i used math-way :P
TIMED WILL GIVE BRAINLEIST HELPPPPPPPPPPPP
Answers
Answer:
3.13π
Step-by-step explanation:
One plane is a quarter of a semi-circle, since the semi-circle is split into four equal parts. One quarter of a semicircle is one eighth of a circle, so find the are of a circle with diameter 10ft, and divide by 8:
Diameter is half the radius, so the radius is 5ft.
Area of a circle = π(radius)²
=5²π
=25π.
We're looking for an eigth of the circles area so: 25π/8 = 3.125π≈3.13π
Are 5x + 9 - 2x = 12 and 3x = 3 equivalent equations
Answers
Answer:
Yes
Step-by-step explanation:
If you simplify the 1st equation,
5x + 9 - 2x = 12
Add like terms
3x + 9 = 12
Subtract the 9 from both sides
3x = 3
It gives you the same equation as the other one
Answer:
yes they both equal 1
Step-by-step explanation:
Find the area of the composite figure.
Answers
Answer:
B. [tex] 200.5 \: {m}^{2} [/tex]
Step-by-step explanation:
Area of the composite figure = Area of square with side length 12 m + Area of semicircle with radius (12/2= 6) 6 m
[tex] = {(12)}^{2} + \frac{1}{2} \pi {r}^{2} \\ \\ = 144 + \frac{1}{2} \times 3.14(6)^{2} \\ \\ = 144 + \frac{1}{2} \times 3.14 \times 36 \\ \\ = 144 + 56.52 \\ \\ = 200.52 \: {m}^{2} \\ \\ \approx \: 200.5 \: {m}^{2} [/tex]
help me with geometry practice . DN=O NOT ANWSER IF YOU DON'T KNOW.
Answers
Answer: See Below
Step-by-step explanation:
there is a ton of information here to get through
<a is 34 (half of 68)
<C is 56
triangle YRC is iscocles, YR and RX are both radius, so they are equal. So the base angles must be equal as well. we know that the central angle is 68, because arc YX is 68. to find the measure of angle C use the equation 2x+68=180 (2 of the same angle (x) + 68 makes all the angles in the triangle. 2x=180-68 2x=112x=56Skip E until the end
<G is 84
<G and the angle that is 96 make a linear pair <G + 96=180<G=84Arc YS is 112
Arc YS is = <Rfind <R<R and the angle across from ARC YX are a linear pair<YRX is 68<R+68=180<R is 112<D and F are 42
<D and <F are the base angles of an isosceles triangle (2 sides are the radius again)the central angle in this case is 962x+96=1802x=84x= 42so both D and F are 42now <E is 96
measure of an angle outside the circle with 2 rays touching the circle is the measure of the larger arc of the circle minus the smaller arc divided by 2the measure of the smaller arc is the same as <Gsmaller arc is 84the larger arc is 360-84the larger arc is 276276-84= 192divide by 2 to get <E192/2=96Can someone help me please I will mark u brilliant
Answers
Answer:
I think the answer is option 3
Step-by-step explanation:
Answer: The box plot that represents this data is option 3.
Step-by-step explanation:
What is the surface area of the triangular prism?
A triangular prism. The rectangular sides are 3 feet by 6 feet, 3 feet by 7.5 feet, and 3 feet by 4.5 feet. The triangular sides have a base of 6 feet and height of 4.5 feet.
[Not drawn to scale]
54 square feet
67.5 square feet
81 square feet
85.5 square feet
Answers
Answer:
The answer would be 81, or C
Step-by-step explanation:
youre welcome, have a great day :D!!
Answer:
81 or c
Step-by-step explanation:
The volume of this rectangular prism is 53.72 cubic centimeters . what is the value of y?
Answers
Answer:
y = 1.7 cm
Step-by-step explanation:
V= lwh
w = [tex]\frac{V}{lh}[/tex] = [tex]\frac{53.72 cubic centimeters}{4cm(7.9cm)}[/tex] = 1.7 cm
Solve the following inequality.
-4x + 5 2 25 + 6x
A. X2
B. XS2
C. XS-2
OD. XX-2
