Answer:
x = 6
Step-by-step explanation:
Alex bought some crayon pens and sketch pens in the ratio of 7:4.
Each crayon pen cost $2.
Each sketch pen cost $2 more than each crayon pen.
He spent a total of $360 on these crayon pens and sketch pens.
How much did he spend on the crayon pens he bought?
Answer:
$168.
Step-by-step explanation:
1 group of 7 crayon pens and 4 sketch pens = 7 x 2 + 4 x (2 + 2) = 14 + 4 x 4 = $30
Number of groups = 360/30 = 12
12 x 7 x 2 = 168
He spent $168 on the crayons.
A company models its net income, in thousands of dollars, with the function f(x)=9x2−54x−144 , where x is the number of units of its product sold. How many units of its product does the company need to sell in order for the net income to equal $0?
The company needs to sell 8 units in order for the net income to equal $0
The net income function is given as:
[tex]f(x) = 9x^2 - 54x - 144[/tex]
When the net income is 0, then f(x) = 0.
So, we have:
[tex]9x^2 - 54x - 144 = 0[/tex]
Divide through by 9
[tex]x^2 - 6x - 16 = 0[/tex]
Expand the above equation
[tex]x^2 +2x- 8x - 16 = 0[/tex]
Factorize the above equation
[tex]x(x +2)- 8(x + 2) = 0[/tex]
Factor out x + 2 in the above equation
[tex](x - 8)(x + 2) = 0[/tex]
Split and solve for x
[tex]x = 8[/tex] or [tex]x =-2[/tex]
The units of product cannot be negative.
So, the value of x is [tex]x = 8[/tex]
Hence, the company needs to sell 8 units
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Type a digit that makes the statement true. 762,78___ is divisible by 6
Answer:
good morning
127,13 is the answer
Find the image of the given point
under the given translation.
P(-3,-3)
T(x,y) = (x -8, y-3)
P' = ([?], [])
Answer:
Step-by-step explanation:
p(-3,-3)
here x is -3 and y is also -3 so
p(-3,-3)=p'(x-8,y-3
=p'(-3-8,-3-3)
=p'(-11,0)
Each day, Robert eats 40% of the pistachios left
in his jar at that time. At the end of the second
day, 27 pistachios remain. How many pistachios
were in the jar at the start of the first day?
Answer:
At the beginning of the first day there were 75 pistachios in the jar.
Step-by-step explanation:
Given that each day, Robert eats 40% of the pistachios left in his jar at that time, and at the end of the second day, 27 pistachios remain, to determine how many pistachios were in the jar at the start of the first day you must perform the following calculations:
100 - 40 = 60
60 = 27
100 = X
100 x 27/60 = X
2700/60 = X
45 = X
60 = 45
100 = X
100 x 45/60 = X
4500/60 = X
75 = X
Therefore, at the beginning of the first day there were 75 pistachios in the jar.
On three successive plays, a quarterback was sacked for a total loss of more than 19 yards. What describes the number of yards gained
A. more than B. less than
Hector's father is 4 times as old as Hector and twice as old as Carlos . If Carlos is 24 years old , how many years old is Hector ?
Which of the following best describes Y on the scatter plot below?
A.
positive association
B.
outlier
C.
cluster
D.
nonlinear association
Hi! Does anyone know the answer to this question? I’m bad at geometry and I’m struggling to get the answer. Please help!
if i understand the question it's 25
Step-by-step explanation:
6/21 equal 10/10+x
info x is GJ
6x=150
x=25
i used the similarity in trangle formula because he sayed that FG is parelel to HJ
Draw a scale diagram of 15 mm scale factor of 8
pleaseee help
do u want us to draw it 4 u ? cuz I can
Please help will mark brainliest
Answer:
D,C,E IS CORRECT
Step-by-step explanation:
what is 434 miles in 7 hours as a rate
Answer:
420 miles/7 hours = 60 miles per hour.
Answer:
62 miles and hour
Step-by-step explanation:
What is the recursive rule for the sequence? -1,-0.5,0,0.5,1,...
9514 1404 393
Answer:
C
Step-by-step explanation:
The subscript (n-1) is used to indicate the term previous to term (n). In this sequence, each term is 0.5 more than the previous term, so the recursive relation ...
[tex]a_n=a_{n-1}+0.5[/tex]
is the appropriate one. This matches choice C.
__
Additional comment
Of course, if the next term is 0.5 more than the last, then the previous term is 0.5 less than the present one. The sequence can be described in this "backward" fashion by the recursive relation of choice A. While that does work to describe the sequence, it is usually not the form we desire for a recursive relation.
Someone help me with this pleaseee!!! I need help asap!!!!
Solve the following system of equation using any method.
3x+3y=12
2x+4y=16
X = and Y=
Answer:
X=0
Y=4
Step-by-step explanation:
3x=12-3y
x=4-y
Plug 4-y in for x in the other equation:
2(4-y)+4y=16
8-2y+4y=16
2y=8
y=4
If x=4-y and y=4, x=4-4=0
HELP HELP HELP FIRST RIGHT ANSWER GETS BRAINLIEST
Answer:
No solutions
Step-by-step explanation:
Which transformation produces another triangle that has the same area as the one shown?
A clockwise rotation of 180' about the origin, then a
dilation by scale factor 2
3
2
A reflection in the line y = -2, then a translation of
2 units right.
1
Р
-4 -3
-2
11
Z
-10
-1
Q4%
A clockwise rotation of 90 about the origin, then a
dilation by scale factor 4.
-2
R
-3
A dilation by scale factor then a translation of
4 units up.
Answer:
A reflection in the line y = -2, then a translation 2 units right.
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.
Rigid transformation are transformation that preserves the shape and size of the object. Rotation, reflection, translation are rigid transformation whereas dilation is not a rigid transformation.
Any transformation regarding dilation changes the side length of the object and hence the area.
From the question, only one option is right. The rest options are not right because they involve dilation. The correct option is:
A reflection in the line y = -2, then a translation 2 units right.
Need help with #6
Find the missing angles
Answer:
p = 95
q = 95
r = 85
s = 85
Step-by-step explanation:
85 deg & p are same-side int angles & are supplementary.
p = 180 - 85 = 95
p & q are vertical & congruent.
q = 95
p & s are supplenmentary.
s = 85
s & r are alt int angles & congruent.
r = 85
PLEASE HELP MEEEEEEEEEEEEEEE
Answer:
y = √61
Step-by-step explanation:
the steps are in the pic above, stay outta drugs and pass ur tests.
What is the MEAN of this data set? (3, 6, 3)
Answer:
mean=sum of data/no of data
=12/3
=4
Step-by-step explanation:
therefore mean=4
Answer:
3+6+3 = 12
12/3 = 4
Step-by-step explanation:
Therefore the mean is 4
Give me authentic answers please.
Jenny needs 1/2 of a stick of butter for a recipe. She cuts the half stick of butter into four equal pieces what portion of the whole stick of butter is each of the pieces I need to show my work plz
Answer:
1/16
Step-by-step explanation:
1/2 of 1/2 is 1/4 then 1/4 of 1/4 is 1/16
If Janie cuts half a stick of butter into four equal pieces, one-eighth (1/8) portion of the whole stick of butter is in each of the pieces.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
We'll apply division by Splitting into equal halves or groups, the division may be used to decide how to distribute a dish of cookies evenly among a group.
It is given that Jenny needs 1/2 of a stick of butter for a recipe. She cuts the half stick of butter into four equal pieces.
The portion of the whole stick of butter in each of the pieces is found as,
= (1/2) / 4
=1/8
Thus, if Janie cuts half a stick of butter into four equal pieces, one-eighth (1/8) portion of the whole stick of butter is in each of the pieces.
Learn more about the arithmetic operation here:
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Calculate the percent error
15 po
Mr. Boone estimates that it will take him 48 minutes to run 8 miles. It
actually takes him 60 minutes. What was his percent error? *
18%
20%
25%
30%
Answer:
20%
Step-by-step explanation:
The formula to find percent error is the absolute value of the actual value (60) minus the approximate value (48) divided by the actual value (60) times 100. So first we calculate 60 - 48 which is 12 then divide 12 by 60 which gives us 0.2 and finally multiply by 100 which gives us the answer of 20%
Which equation has a graph that is a parabola with a vertex at (-2, 0)?
O y=-22²
O y = (x + 2)2
O y = (x - 2)2
Oy=x²-2
Answer: y = (x+2)^2
Aka: B
Step-by-step explanation:
Did it on edge just now !
The equation y = (x + 2)² has a graph that is a parabola with a vertex at
(-2, 0).
Option B is the correct answer.
What is a parabola?A parabola is an equation of a curve, such that any point on the curve is equidistant from a fixed point called the focus and a fixed line called the directrix of the parabola.
The equation of a parabola:
y = a(x-h)^2 + k
We have,
The equation that has a graph that is a parabola with a vertex at (-2, 0) is
y = (x + 2)².
The general equation for a parabola is y = a(x - h)² + k, where (h, k) is the vertex of the parabola.
Comparing this general equation to y = (x + 2)²,
We can see that h = -2 and k = 0, which means that the vertex of the parabola is (-2, 0).
Therefore,
The equation y = (x + 2)² has a graph that is a parabola with a vertex at
(-2, 0).
Learn more about parabola here:
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Can ya help me with this and tell me where to plot it
Answer:
plot x in -3 1/2 from the origin(to left, so put it in middle of -3 and -4)
plot y in 2 1/4 from the origin(to up, so put it in 2 1/4)
Hope this helped, if you have questions; feel free to ask in comments!
Step-by-step explanation:
DETERMINE WHICH OF THE ANGLE MEASURES BELOW CORRECTLY
SATISFY THE MISSING VALUE, X, IN EACH DIAGRAM.
choices:
x= -6
x= -3
x= -2
x= -1
x= 0
x= 1
x= 2
x= 3
x= 6
Hi there!
[tex]\large\boxed{x = -1, 2, 3}[/tex]
The zeros of a polynomial are where the graph intersects the x-axis.
Thus, by looking at the graph, we can see that it intersects the x-axis at x = -1, x = 2, and x = 3.
Answer:
x = - 1, x = 2, x = 3
Step-by-step explanation:
The zeros are the values of x on the x- axis where the graph crosses, that is
x = - 1, x = 2, x = 3 ← are the zeros
what is the answer??
[tex] \red{ \boxed{ \bf Answer: The \: second \: graph } } [/tex]
Which of the following are square roots of the number below? Check all that apply.
Answer:
The answer is D my friend
Answer:
square roots of the 9=3.
#6. Find the volume of the cone. Use 3.14 for Pi and round to the nearest
tenth. *