Using two or more complete sentences, describe and correct the error in the solution.
Solve the system of equations.
3x - 2y = 2
9x - 6y = 6
3x - 2y = 2 → 9x - 2y = 6
9x - 6y = 6 → 9x - 6y = 6
-8y = 12
y = 1.5
3x - 2y = 2 → 3x - 2(1.5) = 6
3x - 3 = 6
3x = 9
x = 3
Answer:
In the very first step, when they multiply both sides by 3 the -2y should become -6y but instead it stays as -2y. The correct solution would be:
9x - 6y =6
9x - 6y = 6
0 = 0
This means there are infinite solutions.
I need help with these two questions please
Answer:
1) Option (b) 32km
2) Option (c) 17
Step-by-step explanation:
According to Pythagoras Theorem,
Hypotenuse²=Perpendicular²+Base²
H²=P²+B²
1) Perpendicular=?
Base=24km
Hypotenuse=40km
40²=P²+24²
1600=P²+576
1600-576=P²
1024=P²
√1024=P
32=P
2) Perpendicular=15
Base=8
Hypotenuse=?
H²=15²+8²
H²=225+64
H²=289
H=√289
H=17
CAN SOMEONE PLEASE DO THE MOST THEY CAN THIS IS URGENT
Answer:
1) 30
2) 1
3) 72
4) 0
5) 6
6) 2
7) 80
11) 16
12) 75
13) 31
14) 36
15) 0
16) 26
17) 52
Step-by-step explanation:
____________________________
1.) [tex]\bold{x=30}[/tex]2.) [tex]\bold{x=1}[/tex]3.) [tex]\bold{x=72}[/tex]4.) [tex]\bold{x=0}[/tex]5.) [tex]\bold{x=6}[/tex]6.) [tex]\bold{x=2}[/tex]7.) [tex]\bold{x=80}[/tex]11.) [tex]\bold{x=16}[/tex]12.) [tex]\bold{x=75}[/tex]13.) [tex]\bold{x=31}[/tex]14.) [tex]\bold{x=36}[/tex]15.) [tex]\bold{x=0}[/tex]16.) [tex]\bold{x=26}[/tex]17.) [tex]\bold{x=52}[/tex]____________________________
5.
0.5, 1.4, 3.0, 7.0, 0.5, 1.8, 0.5
Mean
Median
Mode
Answer: mean- 2.1
Median- 1.4
Mode- 0.5
Step-by-step explanation:
please help meeeeeeee
PLEASE HELP ILL GIVE BRAINLIEST PLEASE
Answer:
-4, -4.3, and -4.43
Step-by-step explanation:
The TV has a volume of 2,808 in³. The width measures 24 inches, and the height measures 18 inches. What is the depth of the TV? 18 in 6.5 in 24 in
Answer:
quisiera ayudarte pero no hablo inglés
i will give you brainliest whoever answers correct first!!
Answer:
X = 24
Step-by-step explanation:
180 - 156 = 24
These are supplementary and equal to 180.
Here is an expression: 3
Evaluate the expression when t is 4.
Answer:
12
Step-by-step explanation:
I think u meant the expression is 3t...
If so, then the answer is:
3t = 3*4
= 12
Find the area and the circumference of a circle with radius 6 m.
Write your answers in terms of it, and be sure to include the correct units in your answers.
(a) Area:
6 m
(b) Circumference:
Answer:
(a) 113.04m²
(b) 37.68m
Step-by-step explanation:
(a)
Area = πr²
=π(6)²
=36π
=113.04m²
(b)
Circumference = 2πr
2π(6) = 12π
=37.68m
Step-by-step explanation:
(a) πr^2= 22/7 * 6*6
= 113.1 m^ 2
(b) 2πr= 2*22/7*6
= 37.7 m
Watch help video
You are at a restaurant and the check comes to a total of $29. If you want to
leave a 19% tip, how much total money should you pay, to the nearest cent?
Answer:
Submit Answer
attempt 1 out of 2
(hp
Answer:
$34.51
Step-by-step explanation:
Okay, to find percentage of numbers in problems, all you have to do is multiply 29 by 0.19 to get 5.51, that's the tip
you then add 29 and 5.51 to get $34.51
The product of two rational numbers:
Answer:
"The product of two rational numbers is rational."
So, multiplying two rationals is the same as multiplying two such fractions, which will result in another fraction of this same form since integers are closed under multiplication. Thus, multiplying two rational numbers produces another rational number.
Step-by-step explanation:
Answer: Is a rational number.
Step-by-step explanation: Two rational numbers produces another rational number. "The product of two rational numbers is rational." So, multiplying two rationals is the same as multiplying two such fractions, which will result in another fraction of this same form since integers are closed under multiplication.
Horatio recorded the daily high temperatures. On 66 days, the high temperature was greater than 88°F. This was 75% of the days that Horatio recorded. How many days was the high temperature less than or equal to 88°F?
Answer:
The answer is 22
Step-by-step explanation:
The total number of days recorded by Horatio was 88,
The number of days with high temperatures less than or equal to 88°F is 22 days.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
We know that the high temperature was greater than 88°F on 75% of the days, which means it was less than or equal to 88°F on the remaining 25% of the days.
So we can set up an equation to solve for the number of days the high temperature was less than or equal to 88°F:
So,
25% x total number of days = number of days with high temperature less than or equal to 88°F
Or in other words:
0.25 x total number of days = number of days with high temperature less than or equal to 88°F
We are given that the number of days with high temperatures greater than 88°F is 66.
Let's use x to represent the total number of days:
0.25x = number of days with high temperature less than or equal to 88°F
0.25x = x - 66
(since the number of days with high temperatures less than or equal to 88°F is the remainder)
0.25x - x = -66
-0.75x = -66
x = 88
The total number of days recorded by Horatio was 88,
The number of days with high temperatures less than or equal to 88°F.
= 0.25 x 88
= 22 days.
Thus,
The total number of days recorded by Horatio was 88,
The number of days with high temperatures less than or equal to 88°F is 22 days.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ3
marco set aside 50 minutes
Answer:
So what's the Question Because to me it looks like something random
question is in the attchment
Answer: A: (-3, -1) B: (4, -3)
Step-by-step explanation:
(5 + 3) − (−3 − 7) − 2
What's the answer
Answer:
16
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
8 - ( - 3 - 7 ) - 2
8 - ( - 10 ) - 2
8 + 10 - 2
18 - 2
16
Kathy has 8 feet of ribbon. How many inches of ribbon does she have?
Isabella’s room is 4 yards wide. How many feet wide is her room?
Answer:
96 inches, and 12 feet
Step-by-step explanation:
There are 12 inches in every foot, so I multiplied 8 times 12, which is 96. Then, there are 3 feet in every yard, so I multiplied 4 times 3, which is 12. I hope this helps :)
Carlos bought a video game that was 15% off. The game was originally $20. How much money DID HE SAVE by getting it on sale?
Answer:
Carlos saved 17 dollars.
Step-by-step explanation:
15% of $20.00 = $3.00
The diameter of the circle shown below is 12. What is the area of the circle?
12
7
Answer:
113.1 square inches.
Samantha is making a trapezoidal picture frame. She measured the frame. One of the bases is 6.5 cm and the height is 8 cm. What must the length of the other base be in order for the area of the frame to be between 45 2 and 60 2 ? Circle all that apply
Answer:
between 45 and 60?
Step-by-step explanation:
5.5 and 8,
Can someone please help me
Answer:
3a⁴b³
Step-by-step explanation:
subtract exponents and divide numbers
Find the slope of the line that passes through (10, 6) and (7, 10).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
-1 1/3 - Proper Fraction
-4/3 - Improper Fraction
Step-by-step explanation:
(10,6) (7,10)
m = [tex]\frac{rise}{run}[/tex]
your "equation" should look like this: [tex]\frac{10-6}{7-10} =\frac{4}{-3} = -1\frac{1}{3}[/tex]
I hope this helped!!!!
Tony wants to
make a line plot of the distances he rode
his bike last week. He rode the following
distances in miles:
3, 4 1/2, 6, 3, 5 1/2, 3, 5 1/2
Make a line plot for the distances Tony rode.
Which of the following characteristics does The Love
John bought 18 pizzas. Mitchel bought 12 pizzas. What percent of the total number of pizzas Mitchel buy?
Answer: 40%
Step-by-step explanation: The total number of pizzas is 12 + 18 = 30. Mitchel bought 12 of those 30 pizzas. To find the percentage you do the portion/total. Thus 12/30 = 0.4, as a proportion. To turn a proportion into a percentage simply multiply by 100. 0.4 * 100 = 40%
Find the value of each trigonometric ratio
the total cost of kurts required textbooks this quarter is $342.50. optional textbooks cost a total of $65.25. whicg inequality shows the total cost C that kurt could pay for his textbooks?
Answer:
342.5 + 65.25 = C
407.75 = C
Step-by-step explanation:
Given that the total cost of Kurt's required textbooks this quarter is $ 342.50, while optional textbooks cost a total of $ 65.25, to determine which inequality shows the total cost C that Kurt could pay for his textbooks, the following mathematical reasoning must be performed:
Mandatory books + optional books = Cost
342.5 + 65.25 = C
407.75 = C
Thus, Kurt could pay a total cost of $ 407.75 for his textbooks this quarter.
Graph and write the equation of a line which has a
slope of − 2/3 and y−intercept of (0,−1)
Answer:
y = -2/3x - 1
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Slope m = -2/3
y-intercept b = -1
Step 2: Write Function
Substitute
y = -2/3x - 1
What value of x makes this equation true?
2 (3x – 8) = 2 (7x + 2)
Answer:
I think the answer to this question or (x) is -2.5 .
I will mark you brainliest
Answer:
a i think
GIVE ME BRAINLIESTpls not trynna be demanding
Step-by-step explanation:
but pls can i have brainliest
A family wants to rent a car to go on vacation. Company A charges $35.50 and 11¢ per mile. Company B charges $60.50 and 14¢ per mile. How much more does Company B charge for x miles than Company A?
Answer:
$30 and 1 cent more
Step-by-step explanation:
$60.50 - $30.50 = $30
0.12 - 0.11 = 0.01