Answers
True
Related Questions
5.Regarding the equations below. What is the value of x?
5x + 2y = 4
x – 3y = –23
Answers
Answer:
x=−2
y=7
Step-by-step explanation:
5x+2y=4
x−3y=−23
In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.
5x+2y=4,x−3y=−23
To make 5x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 5.
5x+2y=4,5x+5(−3)y=5(−23)
Simplify.
5x+2y=4,5x−15y=−115
Subtract 5x−15y=−115 from 5x+2y=4 by subtracting like terms on each side of the equal sign.
5x−5x+2y+15y=4+115
Add 5x to −5x. Terms 5x and −5x cancel out, leaving an equation with only one variable that can be solved.
2y+15y=4+115
Add 2y to 15y.
17y=4+115
Add 4 to 115.
17y=119
Divide both sides by 17.
y=7
Substitute 7 for y in x−3y=−23. Because the resulting equation contains only one variable, you can solve for x directly.
x−3×7=−23
Multiply −3 times 7.
x−21=−23
Add 21 to both sides of the equation.
x=−2
The system is now solved.
x=−2,y=7
Graph if needed:
Find angles A, B, C, D, & E.
Answers
Answer:
Step-by-step explanation:
B = 35 {Alternate interior angles}
C = 75 {Corresponding angles}
D + 75 = 180 {Linear pair}
D = 180 - 75
D = 105
A = C {Corresponding angles}
A = 75
E = A {Alternate interior angles}
E = 75
What is the product of the complex numbers below?
(2 - 3i)(1 + 7i)
A)-19+11i
B) 23-17i
C) -19-17i
D) 23+11i
Answers
Answer:
23+11i
Step-by-step explanation:
took the test :)
(1,-2)(5,4) find the mid point
Answers
Answer:
Step-by-step explanation:
Given points A ( 1 , - 2) and B ( 5 , 4)
Mid point of AB is
= ( ( x1 +x2)/ 2 , ( y1+ y2)/ 2 )
= ( ( 1 + 5)/2 , ( - 2 + 4)/2 )
= ( 3 , 1 )
hope it helps :)
Put the following equation of a line into slope-intercept form, simplifying all fractions. y - 3x = -1
Answers
Answer:
y=3x-1
Step-by-step explanation:
y-3x=-1
y-3x+3x=-1+3x
y=3x-1
Answer:
y=3x-1
Step-by-step explanation:
y-3x=-1
y=3x+(-1)
y=3x-1
Please help I'm in hurry
Answers
Answer:
its twenty five
Step-by-step explanation:
25
if xsqured +y squred =16, xy=10 find the value of x+y using bionomial expansion
Answers
Answer:
x+y=6Step-by-step explanation:
to understand thisyou need to know about:algebraPEMDAStips and formulas:x²+y²=(x+y)²-2xylet's solve:according to the question:
(x+y)²-2xy=16substitute the value of xy:(x+y)²-2.10=16simplify multiplication:(x+y)²-20=16add 20 to both sides:(x+y)²-20+20=16+20=>(x+y)²=36[tex] \sf squre \: root \: both \: sides : \\ \sqrt{ (x + y {)}^{2}} = \sqrt{36} \\ \therefore x + y = 6[/tex]Find the value of x so that the function has the given value.
9(x) = x-9; g(x) = 3
Answers
Answer:
-15
Step-by-step explanation:
Addison earns a fixed hourly rate working as a sales clerk. If she works on a holiday, she earns a different hourly rate than she earns on a regular day. In one week, she earns $188.50 by working 5 hours on a holiday and 16 hours during regular days. A different week, she earns $254.00 by working 8 hours on a holiday and 20 hours during regular days.
Answers
Answer:
10.50
Step-by-step explanation:
The lunch choices last Friday were mushroom or pepperoni pizza. The cafeteria made 10
pizzas in all, 4 of which were mushroom pizzas. What percentage of the pizzas were
mushroom pizzas?
Answers
see 10 as 100% so the 4 would be 40%:) have a great day
Answer:
40%
Step-by-step explanation:
4/10=.40
.40=40% as a percentage
please help me!!!!! asap
Answers
A is correct.
5^2=25
2^3=8
3^2=9
25+8x9
For brainiest:):):):):):)):)
Answers
Answer:
Step-by-step explanation:
1st one is 28.27 cm and 2nd one is 22 in.
Hope i helped.
You purchase 5 pounds of apples and 2 pounds of oranges for $9. Your friends purchases 5 pounds of apples and 6 pounds of oranges for $17. What is the price per pound for each fruit?
Answers
Answer:
One pound of apple = $1
One pound of Orange = $2
Step-by-step explanation:
Plz mark brainliest thanks
Answer:
Apples $1
oranges $2
Step-by-step explanation:
The three squares below join together to form a right triangle. The area and the perimeter for two of the squares is shown. Find the side length of the largest square.
Answers
Answer:
YES
Step-by-step explanation:
by dividing perimeter by 4, we
get the side lengths of 12, 35 and 37.
122 + 352 = 372.
The side length of the largest square is 15 inches.
From the given figure, area of one of the square is 81 square inches and the perimeter of another square is 48 inches.
What is the perimeter?The perimeter of a shape is defined as the total distance around the shape. It is the length of the outline or boundary of any two-dimensional geometric shape. The perimeter of different figures can be equal in measure depending upon the dimensions.
We know that, the area of a square = a²
Here, a²=81 square inches
⇒ a=9 inches
The perimeter of square = 4s
⇒ 4s=48
⇒ s = 12 inches
In the given figure, let the hypotenuse of triangle be x
Using Pythagoras theorem, we get
Now, x²=a²+s²
⇒ x²=9²+12²
= 81+144
= 225
So, x=15 inches
Therefore, the side length of the largest square is 15 inches.
To learn more about the perimeter visit:
https://brainly.com/question/6465134.
#SPJ5
What is the greatest factor of 48x²and 32x³
Answers
Answer:
Step-by-step explanation:
Write the prime factors making up the two expressions
48x^2: 2 * 2 * 2 * 2 * 3 * x * x
32x^3: 2 * 2 * 2 * 2 * 2 * x * x * x
Underline what is common to both
The highest common factor is 2 * 2 * 2 * 2 * x * x
The highest common factor is 16x^2
This may look very simplistic, but try a question like this
5397691 and 3271021
The method I've shown you is likely the only way you could factor these two monsters and they are relatively small numbers.
If the perimeter of square X is triple that of square Y, then the are of X is how many times the area of Y?
Answers
Answer:3 more than y i think srry if im wrong
Step-by-step explanation:
9 times a number is the sum of the number and 56.
Translate the statement to equations
Answers
Answer:
9x = x + 56
Step-by-step explanation:
A square has a side length of 6 centimeters. What is the perimeter of the square?
Answers
Answer:
Perimeter of square = 4 x side length
4 x 6 = 24cm^2
Answer:
It’s 24
Step-by-step explanation:
6*4=24
It’s that simple
Make me brainliest pls
Find the missing angle measures?
Answers
Answer:
x)45
y)45
z)135
Step-by-step explanation:
Determine the coordinates of the y-intercept of 3x − 4y = 24.
Answers
Answer:
(0, -6)
Step-by-step explanation:
At the y-intercept, the x-coordinate equals zero.
3x - 4y = 24
3(0) - 4y = 24
-4y = 24
y = -6
Answer: (0, -6)
answerr to 4p+7p+3+7p+3
Answers
Answer:
18p+6
Step-by-step explanation:
Re-write the expression in the rational exponent form
Answers
Answer:
[tex]11^{\frac{1}{2} }[/tex]
Step-by-step explanation:
The rational exponent form is as the pictures show. (The first one just shows random examples).
Hope it helps!
There are about 16 kilometres in 10 miles About how many kilometres are in 5 miles?
A: 3 kilometres
B: 8 kilometres
C: 32 kilometres
D: 80 kilometres?
Answers
Answer:
167
Step-by-step explanation:
89-g8+16
11/6=n+7/9 what does n equal
Answers
Answer:
n = 19/18
Step-by-step explanation:
11/6 = n + 7/9
-n + 11/6 = 7/9
-n = 7/9 - 11/6
-n = -19/18
n = 19/18
Answer:
n = 19/18
Step-by-step explanation:
The equation 11/6=n+7/9 has fractions with two different denominators (6 and 9). The LCD is 18, which is the smallest number evenly divisible by 6 and 9. Thus, we can rewrite 11/6=n+7/9 as:
33/18 = (18/18)n + 14/18 (Now all three denominators are the same: 18)
Then 33 = 18n + 14, or
19 = 18n
Dividing both sides by 18, we get n = 19/18
Check: Is 11/6 = 19/18 + 7/9 true? YES
A salesperson works 40 hours per week at a job where has two options for being paid. Option A is an hourly wage of $20. Option B is a commission rate of 10% on weekly sales. How much does need to sell this week to earn the same amount with the two options?
Please help..
Answers
Answer:
$8,000
Step-by-step explanation:
40x20= .1s
8000=s
First option, the salesperson will earn 40*20=800 dollars.
For second option, the person will earn the amount he sells/10.
For them to be equal the second salesperson have to sell 800*10=8000 dollars of items to earn that as much money as the first salesperson.
6+1/5x=11.. Solve for x... Help?
Answers
Answer:
x = 25
Step-by-step explanation:
1/5x = 11 - 6
1/5x = 5
x = 5 / (1/5)
x = 5 x 5
x = 25
Hope that helps!
Answer: x=25
Step-by-step explanation:
Calculate the rise and run between any two coordinates to find the slope of each line ...
Answers
For the first one its a slope of -2/3
The second one is 4/5
and the third one is -1/7
1. Casey is filling a box with unit cubes. She can place 3 along the width, and 4 along the length. She can also stack 6 on top of each other inside the box. How many unit cubes can fit inside the box?
Answers
Answer:
72 units^3
Step-by-step explanation:
Finding the volume of a cube is as simple as length × width × height
3 × 4 × 6
72 units^3
The chart below shows the rabbit and fox populations in Boxerville over the last year. Of the choices below, in which month were the populations of rabbits and foxes closest to being equal?
A. November
B. August
C. October
D. September
HELP PLEASE IM STUCK
Answers
jus look at the graph, the blue and orange r the closest together in august
WILL GIVE BRAINLIEST FASTTTTT
Factor x^2−4x+4
(x−4)^2
(x+2)^2
(x+4)^2
(x−2)^2
Answers
Answer: (x−2)(x−2)
The middle number is -4 and the last number is 4.
Factoring means we want something like
(x+_)(x+_)
Which numbers go in the blanks?
We need two numbers that...
Add together to get -4
Multiply together to get 4
Can you think of the two numbers?
Try -2 and -2:
-2+-2 = -4
-2*-2 = 4
Fill in the blanks in
(x+_)(x+_)
with -2 and -2 to get...
(x-2)(x-2)
Answer:
(x−2)(x−2)
so the answer is D.