Answer:
(-60/11,111/11)
Step-by-step explanation:
Solving simultaneously, 4x - 3y=6 -3(6x + y=42) then it becomes, 4x - 3y=6
-18x - 3y= 126 subtracting the two equations, 22x= -120, x= -60/11 and y = 111/11
.
Answer:
(-0.5, 1)
Step-by-step explanation:
4x - y = -3 ----------------------(I)
-6x + 3y = 6 -------------------(II)
Multiply equation (I) by 3 and then add. So, y will be eliminated and you can find the value of x.
(I) * 3 12x - 3y = -9
(II) -6x + 3y = 6 {Now, add}
6x = -3
x = -3/6
x = - 0.5
Plug in x = -0.5 in equation(I)
4*(-0.5) - y = -3
- 2 - y = -3
-y = - 3 + 2
-y = -1
y = 1
Find x. Round to the nearest tenth.
4
6
5
Answer:
7.5
Step-by-step explanation:
The ratio between the two numbers in each set are the same, so the process used to get from 4 to 6 could also be used to find x. 6/4=1.5, so 4*1.5=6. Multiplying 5 by 1.5 would get x. 5*1.5=7.5, so x=7.5.
Fill in the missing number to complete the equivalent fraction show what you multiply or divided by convert each improper fraction to a mixed number or whole number
Answer:
3a) 5/45 you divide by 5
3b) 6/7 you divide by 2
3c) 2/7 you divide by 9
3d) 2/5 you divide by 9
4a) 6
4b) 1 1/4 or 5/4 (both are correct)
4c) 3 1/2 or 3 3/6 (both are correct)
4d) 5 1/8
The fraction bar tells you to divide the top number by the bottom number.
Step-by-step explanation:
For 3a through 3d, you just use the fraction that has a missing number, and if the missing number is at the bottom, use the top number and devide it by the other top number that the fraection is equal to.
For 4a through 4b, devide the top the bottom number
Chcies needs a cabeat is 11 inches long the cable costs $1.20 per centimeter how such would be pas for the table Shehu
set up the calcuno sales problem
Answer:
1.20 times 11. I hope it helped!
(18 POINTS) PLEASE HELP me! thanks!
Answer:
2 \frac{1}{4}
Pls help due tonight. BRIANLIEST IF CORRECT. Prob easy tho.
which one is greater 3 with the power of 2 or 2 with the power of 3 tell me why
Answer:
3 with the power of 2
Step-by-step explanation:
This is greater because when you multiply 3 by 3 you get 9, and when you multiply 2 x 2 x 2 you get 8
A student had $16.08 in his lunch account on Monday. By the end of the day on Thursday, he had spent $11.25. How much money was left in his lunch account to use for Friday? *( wrong answers only)
420.69
Step-by-step explanation:
He lunch was fire
Which is a better measure of spread: range or interquartile range? Why?
The interquartile range is a better measure of spread because, The interquartile range is often seen as a better measure of spread than the range as it is not affected by outliers.
hope it helps.
have a good day.
Answer:
She's correct
Step-by-step explanation:
EDG 2021
In a particular region, for families with a combined income of $57,000 or more, 12% have no children, 37% have one child, 43% have two children, and 8% have three children. Use this information to construct the probability distribution for X, where x represents the number of children per family for this income group. Arrange x in increasing order and write the probabilities P(x) as decimals.
Answer:
P(X = 0) = 0.12.
P(X = 1) = 0.37.
P(X = 2) = 0.43.
P(X = 3) = 0.08
Step-by-step explanation:
12% have no children
This means that P(X = 0) = 0.12.
37% have one child
This means that P(X = 1) = 0.37.
43% have two children
This means that P(X = 2) = 0.43.
8% have three children.
This means that P(X = 3) = 0.08
Help, this is a course challenge
Answer:
Step-by-step explanation:
Statements Reasons
1. m∠BAC = m∠DAC = 51° 1). Given
2. AB = AD = 4 2). Given
3. AC = AC 3). Segments are the same length as
themselves.
4. ΔABC ≅ ΔADC 4). Side - Angle - Side property of
congruence.
According to Wikipedia, the average weight of an adult male in the U.S. is 197.7 pounds with a standard deviation of 18 pounds, while the average adult female weighs 168.7 pounds with a standard deviation of 15 pounds. Both weights vary according to a Normal distribution.
7.) If you randomly selected one adult woman, what is the probability that her weight exceeds (is higher than) 130 pounds?
Suppose you randomly selected one adult male and one adult female from the entire U.S. population. Let the variable D = the difference in their weights (male – female).
8.) Calculate and interpret the mean of D.
9.) Interpret your answer from #8 in context.
10.) Calculate the standard deviation of D.
11.) Calculate the probability that the randomly selected male would weigh less than the randomly selected female.
What are the advantages and disadvantages of bar chart
Answer:
Advantages:
● Bar charts are pretty easy to interpret, and there's a very clear relationship between size and value that allows easy comparison.
● They're simple to make and most people have experience creating and understanding them from school.
● They can help in presenting very large or very small values more emphatically.
Disadvantages:
● Bar charts that attempt to represent wide ranges of numbers will struggle to efficiently communicate their message. For example, a bar chart for the numbers 5, 6, 10 and 378 will lend extreme visual weight to the highest value and make the relative values of the other measurements appear irrelevant. An alternative to this would be creating an adjusting scale for the bars, but this complicates the visual aspect of the presentation and breaks the intuitive sense that size correlates directly to value.
● Bar graphs tend to be locked into a particular data set, making it hard to show multiple values or changes over time unless the chart is modified, such as by making the bars layered and three-dimensional.
I hope it's helpful!
Answer:
Advantages:
Bar charts are pretty easy to interpret, and there's a very clear relationship between size and value that allows easy comparison.They're simple to make and most people have experience creating and understanding them from school.They can help in presenting very large or very small values more emphatically.Disadvantages:
Bar charts that attempt to represent wide ranges of numbers will struggle to efficiently communicate their message. For example, a bar chart for the numbers 5, 6, 10 and 378 will lend extreme visual weight to the highest value and make the relative values of the other measurements appear irrelevant. An alternative to this would be creating an adjusting scale for the bars, but this complicates the visual aspect of the presentation and breaks the intuitive sense that size correlates directly to value. Bar graphs tend to be locked into a particular data set, making it hard to show multiple values or changes over time unless the chart is modified, such as by making the bars layered and three-dimensionalHEY PLEASE HELP ME ASAP I NEEEEEED HELP
Use check words to complete the H diagram
Answer:
What diagram
Step-by-step explanation:
What is the length of BC please help I’ll give you BRAINLIEST
Answer:
3.8
Step-by-step explanation:
use pythagoras theorem
a^2+b^2=c^2
a^2+5^2=6^2
a^2+25=36
a^2=36-25
a^2=11
a=3.3
but on the answers provided write 3.8 because its close
PLZ HELP :(
The area of the green square is 9 ft. The area of the red square is 16 ft?
What is the length of side c?
A)5 ft
B)25 ft
C)81 ft
D)128 ft
Answer:
A) c = 5 ft
Step-by-step explanation:
a = 3
b = 4
3^2+4^2 = c^2
c^2 = 9+26 = 25
c = 5
Answer:
B
Step-by-step explanation:
Unfortunately, I dont really have a explanation for this besides yellow square is larger than both red and green, so using judging by the answers, it has to be B.
PLEASEE HELP MEH I WILL GIVE U BRAINLIST!!!!!!
Answer:
I will first divide the shape into two rectangles. first rectangle area would be 60x15=900mm^2. next rectangle is 20x30=600mm^2. 900+600=1500mm^2. the area is 1500mm^2, which is answer D
Step-by-step explanation:
Mark me brainliest and I give you luck boost on the test :)
What are the benefits of online note-taking tools?
Answer:
They teach students note-taking skills. They give students the answers for tests. They provide a fast and easy way to take notes.
Step-by-step explanation:
Answer:
Its A C E its makes ace but its a c e i took it already please like this
Step-by-step explanation:
11x + 4y = -46
7x – 4y = 10
40 POINTS PLS HELP I WILL ALSO GIVE BRAINLY (ANSWER THE BOXES ON BOTTOM RIGHT)
Answer: See explanation
Step-by-step explanation:
ΔLNM and ΔLKN are 30°- 60°- 90° triangles
We have to find the length of LN before we can find the length of MN.
In a 30°- 60°- 90° triangle, the length of the hypotenuse is 2 times the length of the shorter leg, and the length of the longer leg is the length of the shorter leg times √3
Since the hypotenuse is 6, the short leg would be 3 since the hypotenuse is 2 times the length of the short leg.
LN = √3 times the shorter leg
3 × √3 = 3√3
LN = 3√3
We now know the length of the longer leg in ΔLNM (3√3)
MN would be 3√3 × √3
3√3 × √3
= 3√9
= 3 × 3 = 9
MN = 9
ΔLKM is also a 30° - 60° - 90° triangle
The short leg is 6 m
The hypotenuse would be 12 m
The longer leg would be 6√3
Perimeter: 6 + 12 + 6√3
The perimeter is 18 + 6√3
Area: 1/2 × b × h
b = 6√3
h = LN = 3√3
6√3 × 3√3
18√9 = 18 × 3 = 54
Area: 54 m²
Hope it helps!!
If 120 L of an acid solution is 75% acid, how much pure acid is there
in the mixture?
Answer:
25% or 30L
Step-by-step explanation:
100% is 120L, we know 75% is acid, we need the other 25% to make the 100%. 25% of 120 is 30, so 30 liters is pure acid
Solve each inequality and give your answers in interval notation:
|9x – 11 < 4
16x – 31 > 2
Submit Question
Answer: for |9x – 11 < 4
7/9<x<5/3
Step-by-step explanation:
interval notation:
(7/9 , 5/3)
for each sequence find the first 4 terms and the 10th term
Answer:For these, n is equal to the term you want. So you substitute the number in for whichever term you want. This means:
a) 1 (1st term) + 5 = 6
2 (2nd term) + 5 = 7
3 (3rd term) + 5 = 8
4 (4th term) + 5 = 9
10 (10th term) + 5 = 15
And so on for b (not going to keep writing the term, I’m sure you get that by now.
b) 2(1) - 1 = (2x1) - 1 = 1
2(2) - 1 = (2x2) - 1 = 3
2(3) - 1 = (2x3) - 1 = 5
2(4) - 1 = (2x4) - 1 = 7
2(10) - 1 = (2x10) - 1 = 19
Hope this helps :)
Fill in the blank
4+ (-15)=
Answer:
-11
Step-by-step explanation:
4+(-15)=
-11
Using the information given name each of the following figure
Answer:
I think that's either a Rhombus or a Square.
I think it's more of a Rhombus.
Step-by-step explanation:
If all the sides are equal then its either a Rhombus or a Square. Then look if all the angles are equal and are right angles, Yes? then it's a Square. If only the angles opposite from each other are equal, then it's a Rhombus.
Working 4 hours for $7.00 per hour.
Answer:
You will have 28 dollars in 4 hours
Step-by-step explanation:
4 x 7 =28
(4m+2)+(5b+9)=
I will give the brainiest for the first answer!
Please help for brainliest.
Answer:
not sure but I think it's B... I'm so sorry if it's wrong!
Step-by-step explanation:
Nice to meet you❤️
Hunter surveyed 200 of the students in his school about their favorite color. 66 students said their favorite color was blue. What percentage of the surveyed students said their favorite color was blue?
The percentage of the surveyed students who said their favorite color was blue is 33%
What are percentages?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”
Given here: Hunter surveyed a total of 200 students.
Also students with blue as their favorite color are 66
We know percentage is ratio of the quantity involved over the whole multiplied by 100
Thus the number of students with blue as their favorite color in percentage terms is = 66/200 × 100
= 33%
Learn more about percentages here:
https://brainly.com/question/29306119
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