Answer:
100 feet squared: can u plz give me the brainliest answer!!!!!!!!! plz!!!!!!!!!!!
Step-by-step explanation:
Area of triangle: base x height divided by 2.
25 x 8 = 200
200/2 = 100
Have a nice day!!!!!!!!!! :-)
KA
A 48ft wire is cut into 3 pieces. The 2nd is three times as long as the first piece. The third piece is 4 times as long as the second piece. How long is each piece?
Answer:
3,9,and 36
Step-by-step explanation:
small=x
median=3x
big=12x
x+3x+12x=48
16x=48
x=3
3=small
3*3=9 (median)
9*4=36(big)
3+9+36 = 48
The problem is solved by setting up and solving an equation where 'x' represents the length of the first piece. The three pieces of the wire measure 3ft, 9ft, and 36ft respectively.
Explanation:The question is about finding the length of each piece of a 48ft wire when it's divided into 3 pieces, with each piece having a specific relative length. Let's denote the length of the first piece as 'x'. According to the problem, the second piece is three times as long as the first one, so it's '3x', and the third is four times as long as the second, so it's '4*3x', which simplifies to '12x'.
Combining all these pieces, we get the total length of the wire: x + 3x + 12x = 48ft. This simplifies to 16x = 48ft. Finally, solving for 'x', we find that x = 48ft / 16 = 3ft. Therefore, the three pieces of the wire measure 3ft, 9ft, and 36ft respectively.
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A number cube, labeled 1 to 6, is rolled once. What is the theoretical probability that a 4 is rolled
Answer:
1 out of 6 chance
Step-by-step explanation:
Since there are 6 possible numbers that could be rolled, and 1 number, the number 4, the chances are a 1 out of 6 chance.
OMG PLZ HELP RN
Five-eighths of a number decreased by twelve is the same as one-half of the number increased by two.
5/8x-12=1/2x+2
What is the answer?
Answer:
112
Step-by-step explanation:
The number is 112 if Five-eighths of a number decreased by twelve is the same as one-half of the number increased by two the answer is 112.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have:
Five-eighths of a number decreased by twelve is the same as one-half of the number increased by two.
Let x be the number:
From the question:
(5/8)x - 12 = (1/2)x + 2
The above equation is a linear equation in one variable:
After solving:
(5/8)x - (1/2)x = 12 + 2
(5-4)x/8 = 14
x = 14×8
x = 112
Thus, the number is 112 if Five-eighths of a number decreased by twelve is the same as one-half of the number increased by two the answer is 112.
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x square= 121 can anyone solve it
Answer:
Picture is the answer.
Step-by-step explanation:
1. Convert the number to scientific notation.
265, 984, 325, 100
2.66 ×[tex]10^{11}[/tex]
Hope this helps
find the value of 15 minus 8 divided by 2
Answer:
3.5
Step-by-step explanation:
15 - 8 = 7
7 / 2 = 3.5
Bob cycles 5.4 km every morning. How many feet are in 5.4 km, given that 1 mile = 1.609 km and 1 mile =5,280 feet?
Answer:
17720 feet
Step-by-step explanation:
5.4 km × (1 mile / 1.609 km) × (5280 feet / mile) ≈ 17720 feet
Answer:
17,720.32
Step-by-step explanation:
Divide 5.4 by 1.609 x 5,280 = 17,720.32
Simplify by combining like
terms:
--6x - 12 + 8y + 16x
The answer is 10x+8y-12 if the problem was -6x - 12 + 8y + 16x because you added an extra negative at the start.
What else would need to be congruent to show that ABC = XYZ by ASA?
Given:
Z=C
CB=ZY
A. Y=B
B. AC=XZ
C. BC=YZ
D Z=A
The answer would be A because line CB is equivalent to ZY tight? And angles Z and C are congruent. We also know that they are congruent by a ASA relationship, so then angles Y and B are congruent, the answer is A.
To establish that triangles ABC and XYZ are congruent by ASA, we need two pairs of angles and one pair of sides to be congruent. Given that angle Z equals angle C, side CB equals side ZY, the missing piece is option D: Z equals A.
Explanation:In the problem statement, we're given that triangle ABC = XYZ by ASA, which stands for Angle-Side-Angle congruence. To establish this, we require two angles and one side of the triangle to be congruent. The given details tell us that angle Z is congruent to angle C, and side CB is congruent to side ZY.
To complete the ASA proof, we need another pair of angles to be congruent. Based on the options presented in the question, option D Z=A will fulfill this requirement, thereby proving ABC = XYZ by ASA.
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Please help me!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
a. 81.9
b. 144.7
c. 110.2
d. 48
Step-by-step explanation:
a. 120/109.2 = 90/x
x = 81.9
b. 45.6/120 = 55/x
x = 144.7
c. 304.8/96 = 350/x
x = 110.2
d. 109.2/45.6 = 115/x
x = 48
-2(4-1) = -16 +y
What does y equal
Answer:
10
Step-by-step explanation:
[tex]-2(4-1) = -16 +y\\-2(3) = -16 +y\\-6 = -16 +y\\y = 16 - 6\\y = 10[/tex]
What is the awnser to -12/-4=
[tex]\frac{-12}{-4}[/tex] is 3.
Answer:
-12/-4 is 3
Step-by-step explanation:
hope this helps !!
Do number one Show your work✨
3(x - 6) + 6 = 5x - 6. what is the solution
Answer:
x=-3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(x−6)+6=5x−6
(3)(x)+(3)(−6)+6=5x+−6(Distribute)
3x+−18+6=5x+−6
(3x)+(−18+6)=5x−6(Combine Like Terms)
3x+−12=5x−6
3x−12=5x−6
Step 2: Subtract 5x from both sides.
3x−12−5x=5x−6−5x
−2x−12=−6
Step 3: Add 12 to both sides.
−2x−12+12=−6+12
−2x=6
Step 4: Divide both sides by -2.
−2x
−2
=
6
−2
x=−3
Answer: x = -3
Step-by-step explanation:
1. Distribute the 3 into the parenthesis
3x - 18 + 6 = 5x - 6
2. Combine like terms (on the left side of the equation
3x - 12 = 5x - 6
3. Add 6 to both sides to get rid of the -6 on the right side
3x - 6 = 5x
4. Subtract 3x from both sides to get rid of the 3x from the left side
-6 = 2x
5. Divide both sides by 2
-3 = x
The length of a rectangle is 2 km less than 3 times the width. If the perimeter is 68 km,What is the length of the rectangle
Answer:
The length of the rectangle is 25 km
Step-by-step explanation:
Let
x ----> the length of rectangle
y ----> the width of rectangle
we know that
The perimeter of rectangle is
[tex]P=2(x+y)[/tex]
we have
[tex]P=68\ km[/tex]
so
[tex]68=2(x+y)[/tex]
simplify
[tex]34=(x+y)[/tex]---- > equation A
[tex]x=3y-2[/tex] ---> equation B
substitute equation B in equation A and solve for y
[tex]34=(3y-2)+y[/tex]
[tex]34=4y-2[/tex]
[tex]4y=34+2[/tex]
[tex]4y=36[/tex]
[tex]y=9\ km[/tex]
Find the value of x
[tex]x=3(9)-2=25\ km[/tex]
therefore
The length of the rectangle is 25 km
Can u guys answer these 3 questions for me w/ work shown and also label the ones u guys did so I won’t get them mixed up
8:
q/6 + p
12/6 + 10
2 + 10
12
10:
15 - m/p
15 - 3/10
14.7
12:
p - 2/qp
7 - 2/(4)(7)
7 - 2/28
7 - 1/14
6.928
What is the simplified version of 127/30
Answer:
Step-by-step explanation:
The simplified version of 127/30 is 4 7/30 (mixed number)
127/30 is basically 127 divided by 30, so if you divide 127 by 30, you get 4 and a remainder of 7. WAIT! That's not where I stop. The quotient is the whole number, the remainder is the numerator, and the divisor is the denominator. Therefore, the simplified version of 127/30 is 4 7/30.
Answer:
4 7/30
Step-by-step explanation:
This is an improper fraction.
30 goes into 127 four times with 7 left over.
You place 7 over the original denominator of 30
7/30 is a reduced fraction so ...
4 and 7/30 is your answer.
Rate as brainliest
Find the total cost to the nearest cent.
$9,000 car: 5% sales tax
Answer:
$9,450.00
Step-by-step explanation:
to take sales tax, you convert the % into a decimal ( in this case 5% is equal to 0.05) and multiply that by the cost of the product:
9,000 x 0.05 = 450
that is the amount that you pay in tax. In order to get the entire total add that amount to the original price:
9,000 + 450 = 9,450
Round the following numbers to 1 decimal place,
a)
68.75
b)
5.894
c) 634.9201
d)
89.99
Final answer:
The numbers 68.75, 5.894, 634.9201, and 89.99 when rounded to one decimal place become 68.8, 5.9, 634.9, and 90.0 respectively.
Explanation:
The student is asking for rounding to one decimal place. Here is how you round the given numbers:
68.75: The digit after the decimal point to keep is 7. The next digit is 5, so we round up. The result is 68.8.5.894: The first decimal digit is 8, and the next digit is 9, so we round up. The answer is 5.9.634.9201: After the decimal, the first digit is 9 and the next digit is 2, which does not affect the rounding. Therefore, we get 634.9.89.99: The first decimal digit is 9. The next digit is also 9, so we round up. This gives us 90.0.Simplify 2x2 - y for x= 3 and y=-2.
Answer:
20
Step-by-step explanation:
2x^2-y
x = 3 and y = -2
So then we have 2*3^2--2 which equals 20.
The solution to the algebraic expression 2x² - y for x= 3 and y=-2. is: 22
How to solve Algebra Expressions?An algebraic expression in mathematics is defined as an expression which is made up of variables and constants, along with algebraic operations
We are given the algebraic expression as:
2x² - y for x= 3 and y=-2.
Thus, plugging in 3 for x and -2 for y in the given equation and we have:
2(3)² - (-2)
= (2 * 9) + 4
= 18 + 4
= 22
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4. The annual salaries of employees in a large company are approximately
normally distributed with a mean of $50,000 and a standard deviation of
$20,000:1
a) What percent of people earn less than $40,000?
b) What percent of people earn between $45,000 and $65,000?
c) What percent of people earn more than $70.000
a. What percent of people earn less than $40000?
Solution: Let S be the random variable of a salary of employee (in $), S ~ N(50000,20000). Then the random
variable X =−50000
20000
~N(0,1).
( < 40000) = ( <
40000 − 50000
20000 ) = ( < −0.5) = (−0.5) = 0.3085375.
Here Φ(x) denotes the cumulative distribution function of a standard normal distribution.
Answer: 31%.
b. What percent of people earn between $45000 and $65000?
Solution:
(45000 < < 65000) = (
45000 − 50000
20000 < <
65000 − 50000
20000 ) = (−0.25 < < 0.75)
= (0.75) − (−0.25) = 0.7733726 − 0.4012937 = 0.3720789.
Answer: 37%.
c. What percent of people earn more than $70000?
Solution:
( > 70000) = ( >
70000 − 50000
20000 ) = ( > 1) = 0.8413447.
Answer: 84%.
By converting the salary amounts to Z-scores and checking a standard normal distribution table, the percentages of people earning less than $40,000, between $45,000 and $65,000, and more than $70,000 are approximately 30.85%, 37.21%, and 15.87%, respectively.
Explanation:In this question, we are dealing with what is known as a 'normal distribution' in statistics. The properties of a normal distribution allow us to calculate the percentages requested. First, we need to convert each salary to a 'Z-score'. A z-score will tell us how many standard deviations away from the mean the salary lies.
a) For $40,000, the Z-score will be (40000-50000)/20000, yielding -0.5. Looking up this Z-score in a standard normal distribution table, or using a calculator equipped with normal distribution functions, we find that roughly 30.85% of employees would earn less than $40,000.
b) For the range $45,000 to $65,000: the Z-scores will be -0.25 and 0.75 respectively. These correspond to about 40.13% and 77.34%. The percentage of people earning between these amounts would be 77.34% - 40.13% = 37.21%.
c) For over $70,000: the Z-score is 1.0 which corresponds to around 84.13%. Therefore, the percentage earning more than $70,000 is 100% - 84.13% = 15.87%
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Nando is on a rehabilitation program following a car accident. For the first month, he needs to exercise at most five hours per week and must burn at least 2,000 calories per week. The exercise he is allowed to
do is brisk walking which burns about 350 calories per hour and biking at a moderate pace which burns
about 700 calories per hour. Which graph best represents the set of all points that satisfy the system
representing Nando's exercise options?
Answer:
See explanation
Step-by-step explanation:
Let x be the number of hours per week Nando is brisk walking and y be the number of hours per week Nando is biking at a moderate pace.
For the first month, he needs to exercise at most five hours per week, then
[tex]x+y\le 5[/tex]
Brisk walking burns about 350 calories per hour, then it burns 350x calories per x hours.
Biking at a moderate pace burns about 700 calories per hour, then it burns 700y calories per y hours.
Nando must burn at least 2,000 calories per week, so
[tex]350x+700y\ge 2,000[/tex]
You get the system of two inequalities:
[tex]\left\{\begin{array}{l}x+y\le 5\\ 350x+700y\ge 2,000\end{array}\right.[/tex]
The attached graph shows the solution set to this system of inequalities. In this diagram, red region represents the solution set to the first inequality, blue region represents the solution set to the second inequality and their intersection is the solution set to the system of two inequalities.
send help plzzzzz •~•
b.3/5
c.three
d.three
1 3
- * -
5 5
the reason the bottom is 5 is bc its was a number
Help me please!!? Idk it
Answer:
do the area of the triangle formula the base × height ÷ 2
1. What number divided by 4 1/5 is of 100?
Answer:
420
Step-by-step explanation:
Let the number be x
x / (4 1/5 ) = 100
x / (21/5 ) = 100
x = 100 * (21 / 5) = 20 * 21 = 420
What is 118 rounded to the nearest hundred
Answer:
100.
Step-by-step explanation:
118 rounded to the nearest hundred is 100
When rounding 118 to the nearest hundred, we look at the tens digit (which is 1 in this case). Since this digit is less than 5, we round down to the nearest hundred. Therefore, 118 rounded to the nearest hundred is 100.
Enter an inequality that represents the description, and then solve.
Nine more than seven times a number (x) is at least thirty.
Inequality:
The solution to the inequality is
Answer:
7x + 9 ≥ 30
x ≥ 3
Step-by-step explanation:
7x + 9 ≥ 30
7x ≥ 21
x ≥ 3
Final answer:
The inequality 7x + 9 ≥ 30 represents the description given, and the solution is x ≥ 3, meaning any number greater than or equal to 3 satisfies the inequality.
Explanation:
The inequality that represents the description 'nine more than seven times a number (x) is at least thirty' is written as 7x + 9 ≥ 30.
To solve this inequality:
Subtract 9 from both sides of the inequality: 7x ≥ 21.Divide both sides by 7 to isolate x: x ≥ 3.Therefore, the solution to the inequality is that x must be a number greater than or equal to 3.
Any body know, 38 to the power of 5? i know its hard, it is for me.
38 to the power of 5 is written as 38^5
When a number is raised to a power, multiply that number by itself the number of the power:
38 x 38 x 38 x 38 x 38 = 79,235,168
Hanna shops for socks that cost $2.99 for each pair and blouses that cost $12.99 each. Let x represent the number of pairs of socks purchased, and let y represent the number of blouses purchased. Which equation models the purchases she made with $43.92?
x + y = 15.98
x + y = 43.92
43.92x - 2.99y = 12.99
2.99x + 12.99y = 43.92
Answer:
2.99x + 12.99y = 43.92
Step-by-step explanation:
Because, 2.99 is for each pair of socks and she bought x number of that. Same for 12.99 (Y).
In conclusion her total was 43.92 and she could have bought many socks as she'd like and blouses.
These calculations are 100% correct! :)
Answer:
D.
Step-by-step explanation:
Oh Edge
Danielle can run one mile in 8.835 minutes Alex can run 1 mile and 9.75 minutes how much longer in minutes does it take for Alex to run 1 mile that it takes Danielle
Answer:
0.915 minutes
Step-by-step explanation:
First, take the 9.75 minutes that it takes Alex and the 8.835 minutes it takes Danielle.
Second, line up the numbers annexing zeros as placeholders as needed.
Third, subtract them
9.750
-8.835
-----------
0.915