Answer:
5
Step-by-step explanation:
2x + x = 15
3x = 15
x = 15/3
x = 5
SC = x = 5
Scott earns 45 dollars per week working part time at a book store. He makes one dollar more for each book that he sells. The amount, A (in dollars), that Scott earns in a week if he sells b books is given by the following function A (b) = 45 + b how much does Scott earn in a week if he sells 34 books?
Which of the systems of equations below is equivalent to the system?
4x+5y=3
2x+3y=1
Answer:
algebraic equation
Step-by-step explanation:
.....
PLEASEEEEEE AWNSER I NEED HELP! (AWNSER in scientific notation) 24-27
Answer:
24 - 27 = -3
and if you meant 2/4 - 2/7 in scientic notation:
2/4 - 2/7 = 3/14
HOPE THIS HELPS
If 2a - b = 4 , find a.
To solve for 'a' we have to make it the subject of the equation. Since there are two unknowns ('a' & 'b'), we won't get a numerical value of 'a', but an expression in terms of the second unknown 'b'.
Since 2a - b = 4 [add 'b' to both sides]
then 2a = 4 + b [divide both sides by 2 = multiplying by ¹/₂]
a = ¹/₂ (4 + b)
Davon bought 4 pairs of jeans that cost $18.50 per pair. He had a coupon that took 20% off the total cost of the purchase. What is the final cost of the jeans Davon bought?
Answer
4 pairs of jeans by shirts instead
Step-by-step explanation:
Alex simplified an equation as far as he could and determined that his equation has an infinite number of solutions. Which simplified equation leads Alex to this conclusion?
WHICH ONE IS CORRECT
A
B
C
D
The simplified equation leads Alex to this conclusion is x=5 or x= 0.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
We have given few Resultant value.
So, x = 5 shows that the resultant value of x is 5.
and, x = 0 shows that the resultant value of x is 0.
and, 5 = 5 shows only equality and for equation there must be variable.
and, 5 = - 5 shows only inequality and for equation there must be variable.
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A grocer can buy oranges for $1.65 per pound. 1. Write an equation relating c, the cost; and p, the pounds of oranges. (1 point) 2. An orange order cost $260.10. How many pounds did the grocer order? (Round to the nearest whole number) (1 point)
429.165
Step-by-step explanation:
I think 1.65 x 260 = 429.165
Write 186110 correct to 2 significant figures
Answer:
180000
Step-by-step explanation:
Hello if anyone could answer this that'd be nice
Select all the equations that have {7} as its solution set.
65−2x=6x+9
x2+1=8x−5
3+4x=5x−4
9−x=14x
Step-by-step explanation:
x = 7
3 + 4x = 5x - 4
3 + 4(7) = 5(7) - 4
3 + 28 = 35 - 4
31 = 31
Option C
The equations having the solutions 7 are 65−2x=6x+9 and 3+4x=5x−4. the correct options are A and C.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that we have to check all the equations having solution 7.
Checking option A,
65−2x=6x+9
65 - ( 2 x 7 ) = ( 6 x 7 ) + 9
51 = 51
Checking option B,
x²+1=8x−5
(7²) + 1 = ( 8 x 7 ) - 5
50≠ 51
Checking option C,
3 + 4x = 5x - 4
3 + 4(7) = 5(7) - 4
3 + 28 = 35 - 4
31 = 31
Checking option D,
9 - x = 14x
9 - 7 = 14 x 7
2≠ 98
Therefore, the equations having the solutions 7 are 65−2x=6x+9 and 3+4x=5x−4. the correct options are A and C.
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1. What is an equation of a line that is perpendicular to the line whose equation is 2y + 3x - 1?
1)
2)
3
3) y = 2/3
y = x+
x + 1 / 2
y - zx+2
+1
4)
y=-x+
Answer:
Mark me as brainlist
Step-by-step explanation:
y=-3x-7
I need the answerrrrrrrr plsssssssss
Answer:
Hope this helps
Step-by-step explanation:
Range: 6
Number of students with 6 siblings: 1
Number of students with no siblings: 3
Number of students with 3 or more siblings: 11
Number of observations: 20
Shape of the data: Left skewed
write the equation of a line that passes through the point (-1,-2) and has a slope of -4
Answer:
Y=2x+2
Step-by-step explanation:
The slope-intercept equation of a line :
y = m x + c
Here
m = slope c = y
-intercept
Therefore, the required equation is:
y = 2 xc
Putting the point
( 1 , 4 )
in it as it lies on line, we get:
4 = 2 + c
Therefore
c = 2
So
y = 2 x + 2
is the required equation.
A bicycle is marked 40% off the original price of $150. It is then taxed at 7 1/2%
What is the final total cost of the bicycle?
$96.75
$101.25
$97.50
$64.50
Answer:
$64.50
Step-by-step explanation:
You can sum 7,5% of $150 which will be $161,25 minus 40% = Correct answer is D
Please help with the question in the circle
Answer:
Step-by-step explanation:
B took the test
How to answer this question
Answer:
C. 15
Step-by-step explanation:
The scale factor is 4/10 = 2/5
To find AB:
2/5 = 6/AB cross multiply expressions
30 = 2AB divide both sides by 2
15 = AB
14.50 divided by 8.5
Answer:
1.70
Step-by-step explanation:
The answer is 1.70!
what is the oppistite of 63
Answer:
-63
Step-by-step explanation:
The opposite, or additive inverse of a number is found by changing the sign of the number. With the exception of zero, a number and its opposite (additive inverse) sum to zero.
Hello there! :)
The opposite of 63 is -63.
The opposite of a positive number is a negative number.
Hope it helps!
~Just a felicitous girlie
#HaveAnAwesomeDay
[tex]SilentNature :)[/tex]
Can someone tell me the answer marking brainlist
Answer:
the answer is a decimal that never stops (an irrational number)
Given f(x)=3x−3 and g(x)=2x−3
f(3)−g(5)+12=
Answer:
When f(x) = 3x - 3 and g(x) = 2x - 3,
f(3) - g(5) + 12 = 11.
Step-by-step explanation:
Given:
f(x) = 3x - 3
g(x) = 2x - 3
First solve f(3).
f(x) = 3x - 3
Substitute input value.
f(3) = 3(3) - 3
Multiply 3 and 3.
f(3) = 9 - 3
Subtract 3 from 9.
f(3) = 6
Next, solve g(5).
g(x) = 2x - 3
Substitute input value.
g(5) = 2(5) - 3
Multiply 2 and 5.
g(5) = 10 - 3
Subtract 3 from 10.
g(5) = 7
Knowing these values, solve the expression.
f(3) - g(5) + 12
Replace functions with their values.
6 - 7 + 12
Subtract 7 from 6.
(-1) + 12
Add -1 and 12.
11.
what is the value of U?
It's given that WXYZ is a parallelogram. In a parallelogram, the adjacent angles sum up to 180°. Here, 2u - 2 & 3u + 12 together make 180° because they are adjacent angles.
2u - 2 + 3u + 12 = 180
2u + 3u - 2 + 12 = 180
5u + 10 = 180
5u = 170
u = 170/5
u = 34
_______
꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂
Whats 2x4 i need help.
Answer:
8
Step-by-step explanation:
2 x 4 is 2 + 2 + 2 + 2, which is 8
The surface areas of Jupiter and Earth are approximately 6.0 x 1010 km2 and 5.1 x 108 km2. About how many times greater is Jupiter's surface area than Earth's surface area?
a. 1.2 times
b. 21 times
c. 100 times
d. 120 times
Answer:
D Hope I helped :) Please mark brainliest!
Step-by-step explanation:
The initial number of views for a certain website was 15 . The number of views is growing exponentially at a rate of 22% per week. Whatbis the number of views expected to be four weeks from now . Round to the nearest whle number o
Answer:
33
Step-by-step explanation:
Set up equation:
[tex]15(1+22\%)^4=15*1.22^4 = 33.23[/tex]
round to whole number 33
Charlie is making copies of fliers to advertise his new club at school. The cost for 25 copies is 3.75$
Answer:
.15
Step-by-step explanation:
I'm assuming that you are asking how much does one flier cost
Evaluate.
−8+(6+4)÷(−2)
A −13
B −4
C −3
D −1
Answer:
A -13
Step-by-step explanation:
-8+(6+4)÷(-2)
-8+(10)÷(-2)
-8+-5
-13
Answer: A. -13
Step-by-step explanation:
−8+(6+4)÷(−2)Evaluate inside the parentheses first−8+(10)÷(−2)The multiply and divide from left to right−8+-5Then add-13! So 13 btc<3
please help me i got points
Answer:
the answer is c
Step-by-step explanation:
I did the test
Graph r < -9 on number line
Graph r < -9 on number line???
Step-by-step explanation:
ayusin nyu po tanung nyuh lods
What is the smallest positive multiple of $32$?
Answer:
1
Step-by-step explanation:
i think i could be wrong
PLSSSSS help i need it quick
(SUPER EASY) ILL GIVE BRAINLIEST TOO.
just answer all the questions you know.
Answer:
what is the question
Step-by-step explanation: