Answer: Alvin is 78, Elga is 26
Step-by-step explanation:
Let's first start by naming the variables:
a = Alvin's age
e = Elga's age
a = 3e
a + e = 104
substitute a (in the second equation) as 3e
3e + e = 104
4e = 104
e = 26
Substitute e as 26 into either equation
a = 3(26)
a = 78
Find the perimeter of the triangle NET
please help ._. i’ll give brainliest-
Answer:
it equals .85 hope this helps!
Step-by-step explanation:
A store manager combines 2 lb of trail mix that contains some cashew nuts with 30 lb
of trail mix that is 20% cashews. The result is a trail mix that is 25% cashews. What is the concentration of cashews in the first mixture?
Answer:
100%
Step-by-step explanation:
Let p = percent of cashews in first mix
2p = lb. of cashews in first mix
30(.20) = 6 = lb. of cashews in second mix
32(.25) = 8 = lb. of cashews in the combined mix
So,
lb. of cashews in first mix + lb. of cashews in second mix = lb. of cashews in the combined mix
2p + 6 = 8
2p = 2
p = 1 = 100%
Answer:
100%
Step-by-step explanation:
I solved it and it was correct lol
please condense and/or solve and show work. log8(x+1)-log base 8 of x=log base 8 of 7
Answer:
x=1/6
Step-by-step explanation:
since the base is the same, condense the equation
from log m base a=log n base n, m=n
What is a improper fraction and a mixed multiplication
Answer:
Step-by-step explanation:
An improper fraction is a fraction that the numerator is greater than the denominator. As for a mixed fraction, that is a whole number with a fraction next to it.
plsssss help its easy!!!!!
(one question)
wrong answer for points=banned
Answer:
First that's a quiz. Lol
Step-by-step explanation:
It is the 2'nd answer.
Your Welcome.
20 - x/3 = x/2 what if the solution? show work please
Answer:
x = 24
Step-by-step explanation:
[tex]20 - \frac{x}{3} = \frac{x}{2}[/tex]
[tex]40 - \frac{2x}{3} = x[/tex]
[tex]120 - 2x = 3x\\120 = 5x\\x = 120 /5\\x = 24[/tex]
Can somebody plz help solve this word problem using a equation or showing a way how u got the answer thx :3
WILL MARK BRAINLIEST WHOEVER ANSWERS THIS FIRST :DD!!
Answer:
598 possibly because you multiply 46 x 13
choose the correct classification of 2x+10^2-x^3
a) third degree trinomial
b) fourth degree trinomial
c) sixTh degree polynomial
d) first degree binomial
can some one plss help me??
Answer:
a) third degree trinomial
Step-by-step explanation:
The degree of a polynomial is the same as the degree of the term of the polynomial with the highest degree. The degree of a term is the sum of all the exponents of the variables of the term. Remember that a variable such as x, or y, or z has degree 1.
Now we look at the degree of each term:
2x: degree 1 (since x is the same as x^1)
10x^2: degree 2
-x^3: degree 3
The term with highest degree is the last term which has degree 3, so the degree of the polynomial is 3.
The polynomial has 3 terms, so it is a trinomial.
Answer: a) third degree trinomial
Kareem and Lena each open a savings account today. Kareem opened his account starting amount of $370, and he's going to put a $95 per month. Lena opened her account with the starting amount of $850, and she's going to put in $35 per month. let x be the number of months after today.
a- for each amount write an expression for the amount of money in the account after x months
b-write an equation to show into accounts would have the same amount of money
Answer:
D= It is the total number of data points in the data set, which is also the sum of the row totals or the column totals.
Step-by-step explanation:
What was the height of
the tree at time 0?
What was the rate of
growth (ft/yr)?
What is the equation for the growth of this tree?
What was the distance from home at time 0?
What was the rate if speed(mph)?
What is the equation for the distance from home?
Answer: i dont know lol i just need points
Step-by-step explanation:
) Which of the following is the correct equation of a vertical line that contains (5, 6)?
Answer:
[tex]y = {x}^{2} - 11x + 30[/tex]
(29 points!!!)Enter the correct answer.
in the rectangle ABCD, BD =96. What is the length of ED?
Diagram not drawn to scale.
Numeric answer only Do NOT include units (degrees, inches, feet, etc).
Answer:
48
Step-by-step explanation:
Do 96/2=48
What is the missing term?
-4.-12.x
12.-4 .
2x
?
2.2
3х
+1
Answer:
Step-by-step explanation:
The question is not displaying correctly.
4x·3x = 12x²
PLEASE HELP ILL GIVE BRAINLIEST
Answer:
The third one
Step-by-step explanation:
Answer:
the 3rd option
Step-by-step explanation:
because im smert
Mr. Wade took his family on an 8-hour boat trip. During the trip, the boat used 48 gallons of gasoline. The boat used the same number of gallons each hour. At what rate did the boat use gasoline?
Answer:
6 gallons of gas an hour
Step-by-step explanation:
pls mark brainliest if correct
Answer:
6 gallons used per hour
Step-by-step explanation:
you would divide 48 by 8 because Mr. Wade used 48 after 8 hours.
Solve for x. Enter your answer in interval
notation using grouping symbols.
x2 + x < 20
Answer:
x<18
Step-by-step explanation:
2+x<20
Answer:
(-5, 4)
Step-by-step explanation:
x^2 + x < 20 can be rewritten as a quadratic in standard form: x^2 + x - 20 < 0. Recognize that the graph of x^2 + x - 20 is that of a parabola that opens up. Because the y-intercept (0, -20) is below the x-axis, we know for certain tht the graph intersects the x-axis in two places. Our job is to determine the two horizontal intercepts, which in turn determine the solution set.
x^2 + x - 20 = 0 factors as follows: (x + 5)(x - 4) = 0, whose roots are -5 and 4.
These two roots form 3 intervals: (-infinity, -5), (-5, 4) and (4, infinity). We now must identify on which intervals x^2 + x - 20 is less than 0 (that is, on which intervals the graph is below the x-axis). Choose three test values for x: the first could be -6 (which is in the set (-infinity, -5) ); x^2 + x - 20 is + there, and so the graph is above the x-axis and x^2 + x - 20 is positive. Reject this.
Next, test x = 0; x^2 + x - 20 is negative there, meaning that x^2 + x - 20 < 0 and that x^2 + x < 20. Thus, the solution is (-5, 4). It can be shown that x^2 + x - 20 is positive again for x-values within the interval (4, infinity).
Evaluating
12 quarts of soil are used to completely fill 5 flower pots. If each pot holds the same amount of soil, how many quarts will each pot hold? as a mixed number as a mixed
Answer:
2.4 or 12/5 or 2 2/5
Step-by-step explanation:
HURRY PLEASE WILL GIVE BRAINLIEST
Answer:
the volume is 57600pi, also simplified as 180,956 ft^3 to the nearest whole number
Step-by-step explanation:
hope it helps
Can y’all please help me
Answer:
Rly lazy man.....
Step-by-step explanation:
1/2*l*w is the area of triangle, plug in values...
1/2*4.5*6.6
14.85 square feet is the area
Answer:
A=14.85
Step-by-step explanation:
[tex]A=\frac{ab}{2}[/tex]
"ab' are the lengths of the sides
[tex]A=\frac{(4.5)(6.6)}{2} \\\\A=\frac{29.7}{2} \\\\A=14.85[/tex]
Hope this helped and answered your question! Have a great day/night!
At Gordon Middle School, 75% of the 800 students
participate in the music program. How many students
participate in the music program?
Answer:600 students
Step-by-step explanation:
Answer:
There are 600 students participating. The operation you have to carry out is 800 × .75 = 600.
Or you can simply divide 800÷4= 200. 3/4=200×3. The percentage of students is 3/4 that would be 600 students participating.
Can someone please help me! Thank youuuu!
Answer:
d
Step-by-step explanation:
-4 = 6 - -2f
solve for f
Answer:
f= −5
Step-by-step explanation:
Identify the coefficients in the expression -3h + 3 - 5 + h
Answer:
-3, and 1
Step-by-step explanation:
-3 is the coefficient of h 1 is the co efficient of h
One of the sides of a parallelogram has the length of 5 in. can the lengths of the diagonals be: 4 in and 6 in?
PLEASE PROVIDE AN EXPLANATION
Answer:
Yes, the diagonals could be 6 and 7 in. In a parallelogram, only the opposite sides of the parallelogram are congruent.
Step-by-step explanation:
In a parallelogram, the diagonals bisect each other, so you can set the labeled segments equal to one another and then solve for . \displaystyle 20 - 3x = 2x - 4 \rightarrow 24 = 5x \rightarrow 4.8 = x. Then, substitute 4.8 for in each labeled segment to get a total of 11.2 for the diagonal length.
(x - 7.49 = 87.3) what does the variable x=
Answer:
x= 94.79
Step-by-step explanation:
x= 87.3+7.59
x= 94.79
Which of the following best represents the dependent quantities in the graph below?
A. 2, 20, 4, 40
B. 2, 4, 6, 8
C. 20, 40, 60, 80
D. 10, 20, 30, 40, 50
Answer:
C
Step-by-step explanation:
Dependent quantity = y-value
help...!.!.!!.!.!.!.!.!!.!.!.!.!.!
Step-by-step explanation:
Perimeter means the sum of all the three side of triangle perimeter= x + x+ 5 + x +7 =3x +12
Solve problem using substitution
a = 3b + 1
5b - 2a = 1
Find the area of the given rectangle.
Answer:
3x^2+10x-48
Step-by-step explanation:
(3x-8)(x+6)
3x*x+18x-8x-48
3x^2+10x-48
Answer:
C
Step-by-step explanation: