Answer:
f+(2f-7)=41
Step-by-step explanation:
Farah's age is represented by the first f and her brother's age is represented by the (2f-7) and the sum of their ages is 41, therefore this is the correct answer
1) Which expression has a value equal to 28 = 4?
7 x 4
28 over 4
4 x 28
4 over 28
Answer:
option . B
Step-by-step explanation:
The reason for this is because 28 over 4 is the same thing to 28 = 4 .
love you have a good day <3
Use the elimination method to solve the system of equations. Choose the correct ordered pair.
-x + y = -2
2x - 3y = 4
A. (3, 1)
B. (4, 2)
C. (2, 0)
D. (5, 3)
Answer:
C. (2, 0)
Step-by-step explanation:
-x + y = -2
2x - 3y = 4
Multiply both sides of the first equation by 2.
Write the second equation below it and add them.
-2x + 2y = -4
(+) 2x - 3y = 4
----------------------------
-y = 0
y = 0
Start again with the original equations.
Multiply both sides of the first equation by 3. Write the second original equation below it and add them.
-3x + 3y = -6
(+) 2x - 3y = 4
-------------------------
-x = -2
x = 2
Answer: C. (2, 0)
Solve x ^ 2 + 10x = -21.
x = 7 and x = 3
x = -7 and x = -3
x = - 7 and x = 3
x = 7 and x = -3
Answer:
X = -7, -3
(AKA B)
Answer:
x= -7 and x= -3
Step-by-step explanation:
x^2 + 10x = -21
= X^2 + 10x + 21 (Bring the -21 to the other side to make it positive)
factor the equation...
= (x+7)(x+3)
x= -7 and x= -3
if you need help on how to factor I can help
Which of the following is a Pythagorean triple?
A. (5, 12, 15)
B. (8, 9, 10)
C (8, 15, 17)
D. (3, 3, 6)
Someone please answer this I’m confused
What is the slope of the line which contains the ordered pairs (2, 1) and (-3, 5)?
a. -5/4
b. -4
c. -1/4
d. -4/5
Answer:
d. -4/5
Step-by-step explanation:
When using the equation m = y2 - y1 / x2 - x1, we get m = 5-1 / -3-2.
Simplified: m = 4/-5.
The negative can be placed on the numerator or denominator, it doesn't make a difference.
Determine which problem matches the given inequality.
c<5 1/2
1
O There are 5 fewer cups of
2.
sugar than flour.
5.1
5 1 /
O There are 5
more cups of sugar than flour.
O There are less than 5
2
cups of sugar
O There are more than 5
5.
1
2.
cups of
sugar
Answer:
There are less than 5 1/2 cups of sugar.
Step-by-step explanation:
E D G E N U I T Y
Have a good day! (◕ヮ◕ヽ)
Answer:
c
Step-by-step explanation:
What is the slope of a line perpendicular to the line whose equation is 12x-9y=135
Answer:
[tex]\frac{-9}{12}[/tex]
Step-by-step explanation:
First, we need to isolate y.
1. Subtract 12x from both sides.
-9y=-12x+135
2. Divide by -9 in order to isolate y.
[tex]y=\frac{12}{9} x-15[/tex]
3. Understand that perpendicular equations' slopes are opposite and reciprocal to the original equation. The slope of the original equation is [tex]\frac{12}{9}[/tex], so the reciprocal and opposite (flip and change the sign) slope would be [tex]\frac{-9}{12}[/tex].
If snow falls at a rate of 5 inches every 3 hours, what is the unit rate?
Answer:
5:3
Step-by-step explanation:
Jaron paid $13.80 for 5 tickets to the game. At the same rate, how much would 3 tickets cost? *
Answer:
it will cost 8.28
Step-by-step explanation:
Evaluate the expression when x = -3
-5x -15
Show your work
-5x - 15
-5(-3) - 15
15 - 15
0
Hope this helps! :)
Which expression is equivalent to pq?
O p+q
O p-q O p/q O qp
Answer:
qp.
Step-by-step explanation:
Answer:
It is qp Aka D.
Step-by-step explanation:
I just did the quiz and got a 100%. :)
Which of the following expressions is equivalent to 50-30y?
Answer:
I need the other expressions :l
Step-by-step explanation:
:l
Mrs.Smith brought pencils for her students as a gift.If there are 21 students in her class and each pencil cost $0.74,What was the total cost of the pencils?
Answer:
$15.54
Step-by-step explanation:
IF EACH STUDENT GETS 1 PENCIL, AND $0.74X21=$15.54 THEN THAT IS THE TOTAL COST
The pencils cost $15.54 in all.
Hope I helped!
#2) Choose the graph that matches the equation below.
y =1/2x+1
A
B
C
D
Answer:
A
Step-by-step explanation:
The answer is A because the slope is 1/2, and according to rise over run, the line goes up 1 and to the right 2, which is correct. The y-intercept is also 1, as the line goes through 1 on the y axis.
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It rained all day on Father's Day and the temperature dropped ten and seven tenth degrees. The next day the rain stopped and the temperature rose twelve and six tenths degrees. If the temperature at the beginning of Father's Day was sixty five and eight tenths degrees, what was the temperature at the end of the day after Father's Day?
Find the slope (m) and the y-intercept (b)
The graph shows a square root function. Use what you know about domain to select all of the following functions that could be the one graphed f(x) - V-3 0 KG) V-1 f(x)= x+1 Fx) = x3z- 3
Answer:
on ed its the first one and the second one
Answer:
f(x) = [tex]\sqrt{x - 3}[/tex]
f(x) = [tex]\sqrt{x - 1}[/tex]
Step-by-step explanation:
I want to find the coordinates of each point of the face
Answer:
A) (2,5)
B) (4,4)
C) (3,2)
D) (3,-1)
E) (1,-3)
F) (-1,-3)
G) (-3,-1)
H) (-3,2)
I) (-4,4)
J) (-2,5)
K) (-1,4)
L (1,4)
un vaso contiene leche hasta los 3/5 de su capacidad. si echa un 1/7 mas, es seguro que la leche
A.se derramara porque supera el 100% de la capacidad del vaso
B.no se derramara porque no supera el 50% de la capacidad del vaso
C.se derramara porque la cantidad total es equivalente a la capacidad de dos vasos
D.no se derramara porque la cantidad total esta entre el 70% y el 80% de la capacidad del vaso
Answer:
De las opciones presentadas, la correcta es la D.
Step-by-step explanation:
Suma de fracciones
Dado que un vaso contiene 3/5 de su capacidad con leche, aún tiene libre una fracción que puede ser llenada.
Si se echa 1/7 más de leche, vamos a encontrar si la suma de las dos cantidades supera al 100% o también al número 1 que es la representación del vaso completo.
Sumemos:
[tex]\displaystyle \frac{3}{5}+\frac{1}{7}=\frac{3*7+1*5}{35}=\frac{21+5}{35}=\frac{26}{35}[/tex]
Como el numerador es menor que el denominador, la fracción es menor que 1 y aún cabe más leche en el vaso. Calculando el valor aproximado:
[tex]\displaystyle \frac{26}{35}\approx 0.74[/tex]
Lo cual representa un 74% aproximadamente.
De las opciones presentadas, la correcta es la D.
Which verbal expression is represented by 1/2 (n-3)
(A) One-half n decreased by 3
(B)One-half n subtracted from 3
(C)The difference of one-half n and 3
(D)One-half the difference of n and 3
Answer: (D)One-half the difference of n and 3
Step-by-step explanation:
The correct verbal expression for the function f(n) = 1/2 (n-3) is →
One-half the difference of n and 3.
What is a verbal expression in mathematics?
A mathematical expression when written using verbal statements is known as the verbal expression of that mathematical expression.
Given is the following mathematical expression -
f(n) = 1/2 (n-3)
The given expression is -
f(n) = 1/2 (n-3)
Now, Assume A = (n - 3) represents the the difference of n and 3.
1/2 (A) represents its one half.
Therefore, the correct verbal expression for the function f(n) = 1/2 (n-3) is → One-half the difference of n and 3.
To solve more questions on Verbal Expressions, visit the link below-
https://brainly.com/question/2510639
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-7=-7+9x what is the answer?
Answer:
x=0
Explanation:
Add 7 to -7 ( 0 )
Bring down 9x
then divide
x= 0
I need answer to this question.
Explain why triangle ABC is congruent to triangle FED.
Answer:
The two angles of ΔABC are equal to the two respective angles of ΔFED. Also, the sum of all interior angles of a triangle is 180º. Therefore, third angle of both triangles will also be equal in measure.
Hiii!!!!!!!!!!!!!!!!!!
Answer:
Hi!
Step-by-step explanation:
How are you?
Answer:
i! lovely day isnt it?
Step-by-step explanation:
Find the volume of the rectangular prism. Type your result in the empty box provided. V=whl
Answer:
36
Step-by-step explanation:
Since Volume = Width x Length x Height.
We know everything but volume.
So you just do 2x3x6.
You would get 36.
Answer:
V = 36 ft³
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASGeometry
Volume of a Rectangular Prism: V = whlStep-by-step explanation:
Step 1: Define variables
w = 3 ft
l = 6 ft
h = 2 ft
Step 2: Find Volume
Substitute: V = (3 ft)(6 ft)(2 ft)Multiply: V = (18 ft²)(2 ft)Multiply: V = 36 ft³4(x-3) = 1/2(x/2+5) one nine or infinity
9514 1404 393
Answer:
one
Step-by-step explanation:
The coefficients of x are ...
4 . . on the left
(1/2)(1/2) = 1/4 . . on the right
These values are different, so there is exactly one solution to this equation.
__
The solution is x = 3 13/15.
Please help me and I’ll give you brainiest!!!!!!!!!
Have a wonderful day!!:))))))!!!!!!
|9x|=63 may someone help me out
what will be the result of subtituting 2 for x in both the exprestions below 1/2x + 4, x + 6 - 1/2x - 2
Answer:
For the first one, it will be 6.
The second one, it will be 8.
Step-by-step explanation:
Tell me if its right