Answer:
A) (15 x $3) + (10 x $2) + (12 x $1) = X
B) $77
Step-by-step explanation:
A) Each wrapping paper is 3 dollors, and they bought 15 (15 x 3)
Each greeting card is 2 dollors, and they bought 10 (10 x 2)
Each roll of ribbon is 1 dollors, and they bought 12 (12 x 1)
B) 15 times 3 is 45
10 times 2 is 20
12 x 1 is 12
45 + 20 + 12 = 77
50 in.
14 in.
Find the length of the missing side.
52 in.
24 in.
48 in.
16 in.
Answer:
48
Step-by-step explanation:
what is 4.949 cubic feet rounded to
Answer:
5 Cubic Feet
Hope this helps.
Ivania is trying to figure out how far her home is from the library. If 1/4 of the distance between Ivania’s home and library is 1/3 mile, how long is the total distance?
Write an absolute value inequality for the graph
Step-by-step explanation:
sooooo hard
wysjamajaklansjsmz.zu
I'll be friend
Find the value of k , if one of the two roots of the equation : x2 + k X – 98 = 0 is double
the additive inverse of the other.
«+
C
Given:
[tex]x^2+kx-98=0[/tex]
One of the two roots of the given equation is double the additive inverse of the other.
To find:
The value of k.
Solution:
Let two roots of the given equation are [tex]\alpha[/tex] and [tex]\beta[/tex].
According to the question,
[tex]\beta=2(-\alpha)[/tex] (Additive inverse of [tex]\alpha[/tex] is [tex]-\alpha[/tex])
[tex]\beta=-2\alpha[/tex]
If [tex]\alpha[/tex] and [tex]\beta[/tex] are roots of the quadratic equation [tex]ax^2+bx+c=0,[/tex] then
[tex]\alpha+\beta=-\dfrac{b}{a}[/tex]
[tex]\alpha\beta=\dfrac{c}{a}[/tex]
We have,
[tex]x^2+kx-98=0[/tex]
Here, a =1, b=k and c=-98.
[tex]\alpha+\beta=-\dfrac{k}{1}[/tex]
[tex]\alpha-2\alpha=-k[/tex] [tex][\because \beta=-2\alpha][/tex]
[tex]-\alpha=-k[/tex]
[tex]\alpha=k[/tex] ...(i)
Now,
[tex]\alpha\beta=\dfrac{c}{a}[/tex]
[tex]\alpha(-2\alpha)=\dfrac{-98}{1}[/tex] [tex][\because \beta=-2\alpha][/tex]
[tex]-2\alpha^2=-98[/tex]
Divide both sides by -2.
[tex]\alpha^2=49[/tex]
Taking square root on both sides.
[tex]\alpha=\pm \sqrt{49}[/tex]
[tex]\alpha=\pm 7[/tex]
Using (i), we get
[tex]k=\pm 7[/tex]
Therefore, the value of k is either -1 or 1.
Li bought his dog Spot a huge bone that is 15 inches long. Spot chews 4 inches off the bone every day. What is the new length of the bone after 3 days?
Answer:
3 inches
Step-by-step explanation:
If the dog chews off 4 inches every day, you first have to multiply the inches by the number of days, which in this case is 3 x 4, which equals 12. In 3 days, he chewed off 12 of the original 15 inches, leaving only 3 inches left.
Calculati- 2x + 3y – 5x + y
Answer:
.10
x
2
+
11
x
y
−
6
y
2
Step-by-step explanation:
The Expression
=
(
2
x
+
3
y
)
(
5
x
−
2
y
)
=
2
x
(
5
x
−
2
y
)
+
3
y
(
5
x
−
2
y
)
=
10
x
2
−
4
x
y
+
15
x
y
−
6
y
2
=
10
x
2
+
11
x
y
−
6
y
2
.
Which word phrase could represent 4÷m?
select all the lines that have a slope of 5/2
Answer:
the answer is e i think.
Step-by-step explanation:
The Sloan family stayed in a hotel room for 6 nights while on vacation. The total cost before tax was $1,170. If the hotel room tax rate in the city is 12%, what was the total cost for the hotel room?
Answer:
Total cost for the hotel room is $1310.4
Step-by-step explanation:
The total cost before tax was $1170.
The tax rate is 12%.
So, tax paid = 12%(1170)
Convert 12% to decimal. We get 12% as 0.12
So, tax =0.12*1170 =140.4
So, total cost for the hotel room = $140.4 +$1170 =$1310.4
WHOEVER ANSWERS IT WILL GET BRAINIST ASAP DUE IN 5 MINUTES
Answer:
A. & B.
Step-by-step explanation:
General form is ax2 + bx + c = 0.
Must contain an x2 term
Must NOT contain terms with degrees higher than x2 eg. x3, x4 etc
Answer:
a and b, that's what the first guy said but i dont know I think hes right
11x -20y=28 3x+4y =36
Answer:
x = 8
y = 3
Step-by-step explanation:
11x - 20y = 28
3x + 4y = 36
11x - 20y = 28
11x = 20y + 28
x = [tex]\frac{20}{11}[/tex]y + [tex]\frac{28}{11}[/tex]
3x + 4y = 36
3 ( [tex]\frac{20}{11}[/tex]y + [tex]\frac{28}{11}[/tex] ) + 4y = 36
[tex]\frac{104}{11}[/tex]y = [tex]\frac{312}{11}[/tex]
y = 3
x = [tex]\frac{20}{11}[/tex]y + [tex]\frac{28}{11}[/tex]
x = [tex]\frac{20}{11}[/tex] ( 3 ) + [tex]\frac{28}{11}[/tex]
x = 8
6 The manufacturer of an oven states that the
temperatures displayed while cooking are within a
5% error. Rachel is using the oven to cook a chocolate
cake that must be cooked at a temperature below
325°C. The oven display shows a temperature of 310°C.
Can Rachel be certain that the temperature is suitable
for cooking her cake? Explain your answer.
Result, Rachel can be certain that the temperature is suitable for her cake.
Rachel cannot be certain that the temperature displayed on the oven is suitable for cooking her cake.
The manufacturer's claim of a 5% error on the displayed temperature means that the actual oven temperature can be off by 5% in either direction. To calculate the range of possible actual temperatures, we need to find 5% of 310°C. 5% of 310 = (5/100) * 310 = 15.5°C This means that the oven temperature could be 15.5°C higher or 15.5°C lower than the displayed temperature.
To find the maximum possible temperature, we add the error to the displayed temperature: 310°C + 15.5°C = 325.5°C Since the maximum possible temperature is slightly above 325°C, Rachel cannot be certain that the temperature is suitable for cooking her cake, as it needs to be cooked at a temperature below 325°C. It's important for Rachel to consider using an alternative thermometer or verifying the actual temperature with the oven manufacturer to ensure the cake is cooked at the desired temperature.
To know more about thermometer visit:
https://brainly.com/question/16840415
#SPJ2
Triangles ABC and DEF are similar. If ∠ABC = 101°and ∠BCA = 39°, find the measure of angle FDE.
Two triangles, ABC and DEF, similar. <ABC = 101° and <BCA = 39°. Find the angle of FDE!
40°
EXPLANATIONKnown :Triangle ABC and DEF is similar<ABC = 101° = <DEF<BCA = 39° = <DFEAsked :Angle of FDEAnswer :
The sum of all triangle angle is 180°
101 + 39 = 140°
180 - 140 = 40°
So, the angle of FDE is 40°
ANSWER DETAILSSubject : Math
Class : 7th Grade (Junior High School)
Chapter : -
Categorization Code : -
Keywords : Angle of a triangle
Pam buys 6 of these kits and has a total of 144 cookies and icing
packets. The equation shown represents
this situation.
6(x + 12) = 144
What does the variable x represent in Pam's equation?
>
A the number of cookies in one kit
B) the number of cookies in all 6 kits
the number of icing packets in all 6 kits
D the number of icing packets in one kit
Answer:
A
Step-by-step explanation:
Help me please.
Trevors mark on a math test was 10/15
Anne’s mark was 15/20
Trevor said each of us got 5 wrong so our marks are equal
Agree or disagree with this statement
A gym membership charges a one-time application fee of $15, plus $32 each month. Which of the following equations could represent the total cost, y, for x number of months?
A.y = 32x + 15
B.y = 15x + 32
C.y = 47x
D.15y = 32x
Answer:
The answer is A. y =32x + 15
Step-by-step explanation:
The reason behind this is the rate. The amount of money each month is the slope (m). The additional fee would be the b.
what is 2/3x + 1/4x= 6 ??????
Answer:
x=72/11
Step-by-step explanation:
In a recent flu epidemic, the number of flu cases increased by 40% each week. There were 3,000 flu cases during the first week of January. How many more people were affected by the flu during the third week of January than during the first week?
Answer:
2880
Step-by-step explanation:
The total number of people affected by flu during the 2nd and 3rd week of January, 1200 + 1680 = 2880
Answer
2880
Step-by-step explanation:
can someone please help me factor and write the equations for these two problems ?
Answer:
Step-by-step explanation:
Asymptotes 3
g(x) = [tex]\frac{3x}{x^2-3x-10}[/tex]
Factors of denominator will be,
x² - 3x - 10 = x² - 5x + 2x - 10
= x(x - 5) + 2(x - 5)
= (x + 2)(x - 5)
Therefore, factored form of g(x) will be,
g(x) = [tex]\frac{3x}{(x + 2)(x - 5)}[/tex]
Asymptotes 4
h(x) = [tex]\frac{(x-5)}{x^{2} + 14x + 40}[/tex]
= [tex]\frac{x-5}{x^{2}+10x+4x+40}[/tex]
= [tex]\frac{x-5}{x(x+10)+4(x+10)}[/tex]
= [tex]\frac{x-5}{(x+10)(x+4)}[/tex]
everything is above
Answer:
Option B
Step-by-step explanation:
8 - 2x < 18
Subtract 8 from both sides;
-2x < 10
Divide both sides by -2
x > -5
Answer:
X > -5
it would be B.
open circle on -5 and the arrow point on the right. Because x can be any number greater than -5.
Step-by-step explanation:
8 - 2x < 18
- 2x < 18 - 8
-2x < 10
x > 10/-2
x > -5
You are going to work out the problem 25.7 divided by 0.05. When you rewrite the problem what does dividend become?
Marcy went to store and bought a t-shirt for $7.89 and a skirt for $10.99. There was a 25% discount off everything in the store. How much did she pay, not including tip?
Answer:
$5.91 for the t-shirt. $8.24 for the skirt
Step-by-step explanation:
It's correct don't worry. The problem is I cant explain but it's correct, also if you can please give brainliest
7y-(9+4y)= -3
y=?
Rest in peace 999
Answer:
y = 2
Step-by-step explanation:
Given
7y - (9 + 4y) = - 3 ← distribute parenthesis by - 1
7y - 9 - 4y = - 3 , that is
3y - 9 = - 3 ( add 9 to both sides )
3y = 6 ( divide both sides by 3 )
y = 2
Answer:
you are not a brainly bot
Step-by-step explanation:
What is the slope of the line?
Answer:
One
Step-by-step explanation:
When you count the units from one point to another, the answer is one. The units are one to the right then one up. 1/1
Step-by-step explanation:
slope =1
since the intercepted part of X_ axis and y_ axis are equal
so , the line make 45 angle with x_ axis
slope = tan O =1
Please help will give brainliest!
Which change to the simulation used is BEST to produce output that better resembles the theoretical output? A increase the number of trials to 1000
Answer:
Dont worry I got you
Step-by-step explanation:
The Answer is 30 or at least it was for my test, I got the same question lol
Find f(6); f(n) = 5 – 2n
Answer:
f(6)=-7
Step-by-step explanation:
Just plug in n=6 into the function:
f(n)=5-2n
f(6)=5-2(6)
f(6)=5-12
f(6)=-7
Therefore, the correct answer is f(6)=-7
Answer:
the answer is g=−12+ 30/n
Step-by-step explanation:
Which of the following are part of the solution to 7-6n<31 ( select all that apply)
A. -10
B. -4.1
C. -4
D. -3.9
E. 0
F. 3.9
G. 4
H. 4.1
I. 10
Answer:
the anwers is the G
i hope this hepl you
Josh has been working andsaving money in order to buy a car andtravel the country. According to hiscalculations, it will cost him $1450 amonth for all his expenses. If Josh hassaved up $40,000, and will be purchasinga car for $16,500, at most, how manymonths will he have enough money totravel?
Answer:
16 months
Step-by-step explanation:
40k-16.5k=23.5k. 23.5k/1450= A little bit more than 16 months.
Bananas are 5 for 79 cents . Isaiah bought 7 bananas. How many did Isaiah spend?
A. $1.58
B. $1.18
C.$1.11
D.$1.01
?
