Answer:
-8x-16+2x-2
-4x = 18
x= -4.5 or -4 1/2
Step-by-step explanation:
Solve the system of equations -4x-2y=30−4x−2y=30 and -x+y=6−x+y=6 by combining the equations.elimination
Answer:
215.00
Step-by-step explanation:
please help me on this will give you brainliest
Answer:
x + 8*19
Step-by-step explanation:
2x−7=−19 x =
x/-3+5=12 x =
3/4x −5=4 x =
John spent $75 on a shopping trip for new clothes last week. He had expected to spend $100 on clothes,
Approximate Value Exact Value Error Absolute Error Ratio Percent Error
$100
$75
$25
How much was the absolute error in his estimate?
$
Intro
Answer:
Absolute error = $25
Step-by-step explanation:
Given that:
Amount spent by John on shopping trip = $75
Estimated amount to spent on shopping trip = $100
Absolute error = Approximate value - Exact value
Here,
Approximate value = $100
Exact value = $75
Absolute error = 100 - 75
Absolute error = $25
Percentage = [tex]\frac{Absolute\ error}{Exact\ value}*100[/tex]
Percentage = [tex]\frac{25}{75}*100[/tex]
Percentage = 33.33%
Hence,
Absolute error = $25
Given m ||n, find the value of x.
(7X+9)
(9x+5)°
Answer:
x = 2Step-by-step explanation:
(7x + 9)° is corresponding angle to (9x + 5)° angle
Therefore:
m║n ⇒ (7x + 9)° = (9x + 5)°
(7x)° + 9° = (9x)° + 5° {subtract (7x)° from both sides}
9° = (2x)° + 5° {subtract 5° from both sides}
4° = (2x)° {divide both sides by 2°}
x = 2
1/8 - 1/7 please :DDDDDDDDD
It is due at 1:45 plz help
Help me there is brainliest insured
Answer:
33
Step-by-step explanation:
44 - 25% off is 33
ILL GIVE BRAINLIEST! HELP!
What is the expanded form of this number?
(14.702)
A. (1×10)+(4×1)+(7×1/100)+(2×1/100)
B.(1×10)+(4×1)+(7×1/10)+(2×1/100)
C.(1×10)+(4×1)+(7×1/10)+(2×1/1,000)
D. (1×10)+(4×1)+(7×1/100)+(2×1/1,000)
Answer:
is B))))
Step-by-step explanation:
brainliest pls
.
.
.
.
.
Answer:
D
Step-by-step explanation:
Look at chart
If AB is the mid segment of XYZ, then find AB and x.
Answer:
AB=17
x=6
Step-by-step explanation:
2AB=XZ(mid-segment theorem)
AB=17
3x-1=17
3x=18
3x=18
x=6
Type the correct answer in the box. Use numerals instead of words,
Consider this expression.
m2 - 71 +22
When m
= -2 and n = 5, the value of the expression is
The value of the expression is -53.
What is an expression?An expression or algebraic expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them.
Given expression
m2 - 71 +22..................(1)
m = -2 and n = 5
Substitute m = -2 and n = 5 in equation(1)
⇒ m2 - 71 +22
⇒ (-2) × 2 - 71 + 22
⇒ -4 -71 +22
⇒ -75 + 22
⇒ -53
Hence, the value of the expression is -53.
Find out more information about expression here
brainly.com/question/19131200
#SPJ2
A person going to a party was asked to bring 5 different bags of chips. Going to the store, she finds 11 varieties.
How many different selections can she make?
Answer:
as an instinct i thought that i should multiply 11 and 5, so im saying 55 different selections
Step-by-step explanation:
sorry if im wrong
If x : 3 = 5 : 7 , then x = ………
Answer:
the answer is A which 2(1/7)
Is it possible for the measure of an exterior angle of a triangle to be equal to the measure of a remote interior angle? Explain
Answer:
The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles. (Non-adjacent interior angles may also be referred to as remote interior angles.) FACTS: An exterior ∠ is equal to the addition of the two Δ angles not right next to it.
2200 dollars is placed in an account with an annual interest rate of 7.25%. How much
will be in the account after 20 years, to the nearest cent?
Answer:
$3190.00
Step-by-step explanation:
-5x + y = -1
10x – 2y = 2
Answer:
y= -1+5x
Step-by-step explanation:
what is a precent of 17/20?!
Given that € 1 = £0.72
b) What is the £ to € exchange rate?
Which of the following lists of numbers is closed under division?
O Rational Numbers
O Whole Numbers
O Natural Numbers
O Irrational Numbers
Answer:
The set of rational numbers is closed under addition, subtraction, multiplication, and division (division by zero is not defined) because if you complete any of these operations on rational numbers, the solution is always a rational number
Step-by-step explanation:
Rational Numbers closed under division
What are rational numbers?Rational Numbers: Any number that can be written as a ratio (or fraction) of two integers is a rational number.
Given:
we have to find the Numbers closed under division
Whole numbers are not closed under division because denominator can't be equal to 0.
Similarly, Natural Numbers and Irrational Numbers are not closed under division.
Since the result of any of these operations on rational numbers is always a rational number, the set of rational numbers is closed under addition, subtraction, multiplication, and division (division by zero is not defined).
Learn more about rational number here:
https://brainly.com/question/16591101
#SPJ2
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.
Answer:gay
Step-by-step explanation:
Answer:
k=4.5
Step-by-step explanation:
if you multiply 4.5 by x your result will be y
ex: 4x4.5=18
4=x and 18=y
Please helppp! I only have 10 minutes
Will mark brainlist if you answer this correctly!!!
If P is the incenter of triangle JKL, find the measure of JKP.
Answer:
m∠JKP = 31.5°
Step-by-step explanation:
Incenter of a triangle is the point where all the bisectors of interior angles intersect each other.
JN is the angle bisector of ∠KJL.
Therefore, m∠KJN = m∠LJN
(7x - 6) = (5x + 4)
7x - 5x = 6 + 4
2x = 10
x = 5
m∠KJN = (7x - 6)
= 7(5) - 6
= 35 - 6
= 29°
In ΔKJN,
m∠JKN + m∠KNJ + m∠NJK = 180°
m∠JKN + 90° + 29° = 180°
m∠JKN = 180°- 119° = 61°
Since KO is the angle bisector of ∠JKN,
m∠JKP = [tex]\frac{1}{2}(\angle JKN)[/tex]
= [tex]\frac{1}{2}(61)[/tex]
= 30.5°
An ice cream factory makes 375 quarts of ice cream in 5 hours. How many quarts could be made in 13 hours?
Answer:- 975 quarts of Ice cream is prepared in 13 hours.
Step-by-step explanation:
If 375 quarts of ice cream is made in 5 hours
then in 1 hour quantity of ice cream prepared is = 375/5=75
then in 13 hour quantity of ice cream prepared would be = 13×75=975 quarts.
Hope this helps you.
3 managers and 47 non-managers attended a company meeting. What percentage of the
people in the meeting were managers?
Answer:
6%
Step-by-step explanation:
50 managers in total.
3/50=0.06 which translates to 6%
Grace is practicing for an upcoming piano recital.
The graph shows the hours she spent practicing over a 4-week period.
Answer:
The relationship is proportional.
The points form a straight line that passes through the origin.
Step-by-step explanation:
Answer:
The pionts lie on a straight line that goes through the origin
Step-by-step explanation:
cuz i got it right
Calculator
A gift box has the shape of a cube with an edge length of 4.5 in.
What is the volume of the gift box?
Enter your answer in the box.
in3
1
2
3
4
5
Answer:
91.125 in³
4.5 ^3
91.125 in³
2x^2 -8x+5=0
Rewrite this quadratic into vertex form and then give the vertex:
Answer:
Step-by-step explanation:
Starting with
2
x
2
−
5
=
0
, first add 5 to both sides to get:
2
x
2
=
5
Divide both sides by 2 to get:
x
2
=
5
2
Take the square root of both sides (allowing both positive and negative roots) to get:
x
=
±
√
5
2
=
±
√
5
√
2
A triangle is graphed on a coordinate grid with (x,y) representing the location of a point on the triangle.The triangle is transformed using the rule (x,y)-(kx,k,y)
The line CD passes through the points C (2, -1) and D (1, 1). Which of the
following represents the equation of the line in Point-Slope Form?
Answer:
The equation of the straight line in point - slope form
y +1 = -2 ( x-2)
Step-by-step explanation:
Step(i):-
Given points are C( 2,-1) and D(1,1)
Slope of the line
[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} } = \frac{1-(-1)}{1-2} = \frac{2}{-1} = -2[/tex]
m = -2
Step(ii):-
Equation of the straight line passing through the point ( 2,-1) and having slope
m =-2
y - y₁ = m ( x- x₁)
y - (-1) = -2 ( x-2)
y +1 = -2 ( x-2)
Final answer:-
The equation of the straight line
y +1 = -2 ( x-2)