Answer:
X=1
Step-by-step explanation:
-10x-2=-3x-9
-10x-2+2=-3x-9+2
-10x=-3x-7
-10x+3x=-3x-7+3x
-7x=-7
Then divide both sides by -7
x=1
In November 2010 the average cost of 5 gallons of regular unleaded gasoline in the United States was $14.46. What was the average cost for 16 gallons of gasoline?
Answer:
$46.72
Step-by-step explanation:
The first step is to find the price of 1 gallon
5 gallons= 14.46
1 gallon= x
5x= 14.46
x= 14.46/5
1 gallon= $2.92
Therefore the cost of 16 gallons of gasoline can be calculated as follows
1 gallon= 2.92
16= x
x= 2.92 × 16
= $46.72
Perry is making a scrapbook with pictures of all his summer activities. He filled 6 pages with
24 pictures from his weekend at the beach. Perry has 44 pictures from his week at camp.
If Perry adds pictures to his scrapbook at the same rate, how many pages will he fill with his
camp pictures?
Answer: 188
Step-by-step explanation:
So first do
6 X 24=144+44=188
Tell me if I am right
Answer:
Step-by-step explanation:
11
1. The price decreased from $25.00 to $10.00. Find the percent of decrease.
60% decrease
15 is 60% of 25
What is 60% of 25?
Y is 60% of 25
Equation: Y = P% * X
Solving our equation for Y
Y = P% * X
Y = 60% * 25
Converting percent to decimal:
p = 60%/100 = 0.6
Y = 0.6 * 25
Y = 15
Answer:
It decreased by 71%
Step-by-step explanation:
25 divided by 35
What is the equation of this parabola?
Answer:
y = - x² + 4
Step-by-step explanation:
The equation of a parabola whose vertex is on the y- axis is
y = ax² + c
where a is a multiplier and c is the y- intercept
• If a > 0 then minimum vertex
• If a < 0 then maximum vertex
Here vertex is a max, thus a = - 1 and c = 4
Then equation of parabola is
y = - x² + 4
Ricardo has $25 to spend on school supplies. He spends 56% of the money on a backpack and the rest on a large binder. How much money does he spend on the backpack? How much does he spend on the binder
Answer:
Ricardo spends $14 on the backpack and $11 o the binder.
Step-by-step explanation:
First, you have to calculate 56% of the amount Ricardo has to spend on school supplies to find the money he spends on the backpack:
$25*56%=$14
Now, you have to subtract 56% from 100% to find the percentage that he spent on a large binder:
100%-56%=44%
Finally, you have to calculate the 44% of the amount Ricardo has to spend on school supplies to find the money he spends on a large binder:
$25*44%=11
According to this, the answer is that Ricardo spends $14 on the backpack and $11 o the binder.
Question is in the picture. PLEASE HELP ASAP GIVING BRAINLIEST & 30 POINTS!
Answer:
x=5
Y=0
Hope this helpssssssssssssssss
Answer:
x=1; y=13/5
Step-by-step explanation:
(I'm sure you can do given yourself)
<D=<B Def of parallelogram
8x+5=5y Substitution
<a and <d is Def of paralleogram
supplementary
3x+10=5y Substitution
8x+5=5y Do system of equations
3x+10=5y
8x+5=3x+10 they both equal 5y so set both the equations together
5x+5=10 subtract 3x from both sides
5x=5 subtract 5 from both sides
x=1 divide by 5 on both sides
8(1)+5=5y plug in x to one of the previous equations
13=5y Simiplfiy
y=13/5
Select the points that are solutions to the system of inequalities. Select all
that apply.
A. (1,2)
B. (-10,10)
C. (-2,0)
D. (0,10)
Answer:
B and D
Step-by-step explanation:
When will Peter's baseball hit the ground? Use mathematical evidence to explain your answer.
Question:
The height of Peter’s baseball is given by the graph below (See attachment)
When will Peter’s baseball reach the highest height? What is the height? When will Peter’s baseball hit the ground? Use mathematical evidence to explain your answer.
Answer:
Peter's baseball reached the maximum height at 1.5 secondsPeter's baseball hit the ground at 4 secondsStep-by-step explanation:
The (a) & (b) will be answered by making reference to the attachment.
Solving (a): Time to reach maximum height
The height is plotted at the vertical axis while the time taken is at the horizontal axis.
From the attachment; the following details can be observed
The maximum height is at 90ftWhen the maximum height is traced to the horizontal axis, the corresponding time is 1.5sUsing function notations, this can be represented as:
[tex]f(1.5) = 90[/tex]
And the interpretation is that:
Peter's baseball reached the maximum height at 1.5 seconds
Solving (b): Time to hit the ground
The interpretation of this question is to solve for the x intercept of the graph.
From the attachment; the following details can be observed
The ground is at 0 feetThe corresponding time at 0 feet is 4sUsing function notations, this can be represented as:
[tex]f(4) = 0[/tex]
And the interpretation is that:
Peter's baseball hit the ground at 4 seconds
Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80!
Answer:
1.15
Step-by-step explanation:
HELP ME PLEASE I'M RUNNING OUT OF TIME!
Answer:
i think it should be C, im not so sure though
Step-by-step explanation:
if you look, you just go greatest to least, so ig Sanjay (who has 1000) should be the greatest, then Raisa, Felicity, then Megan. if im wrong im so sorry- ;-;
Does 4(x - 8) + 12 = 2(2x - 9) have one solution, no solution, or infinitely many solutions?
Answer:
no solution
Step-by-step explanation:
hope this helps =)
The given equation has no solution.
What is equation?
Equation is a statement that show the equality of two expressions connecting by equal sign. for example, 3x - 5 = 20. In this case, 3x - 5 and 20 both are expressions which are connected by equal sign. The two expressions are written on the left side of equal and right side of equal. There are different types of equations such as linear equation, quadatic equation, etc.
The equation is given in the question is 4(x - 8) + 12 = 2(2x -9).
when we find out the solution,
4(x - 8) + 12 = 2(2x -9)
Multiply x with 4 and 2 according to the equation.
4x - 32 + 12 = 4x - 18
4x - 20 = 4x - 18
now, you can see this equation has no solution as the value of x cannot be determined.
To know more about the equations click the link below.
https://brainly.com/question/2972832
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( THIS COULD BE A QUICK ONE ! )
Amy solved the inequality and was asked to express her answer in set notation. Determine if she
made a mistake, correct the mistake if she made one and create the correct expression in set notation.
-X-7>-6
X> 1
(1, ∞ )
Step-by-step explanation:
-X - 7 > -6
-7 > X - 6
X < -1
Hence the answer in set notation is (-∞, -1).
Answer:
x<-1
x€(-∞,-1)
Step-by-step explanation:
Yes she made mistake
Here's the correction
If 12 X 15 = 180 then what would 24 X15 equal (without solving it on paper)? Is there an easy way to figure out the answer? If so, explain.
Answer:
360
Step-by-step explanation:
It's a simple concept. All you have to do is double the answer! Here's why:
We already know that 12 x 15 is 180. Now we're trying to figure out 24 x 15. 24 is 12 two times, or 12 doubled. Since 12 is doubled, the answer should also be doubled.
Let's take an easier example: 3 x 2.
The answer is 6. What if you doubled the 3 to get 6 x 2? The answer is 12, which is 6 doubled. By doubling the multiplier or multiplicand of the problem, you are also doubling the answer.
It's not just doubling, either. If 3 x 2 is 6. Then 9 x 2 is 18. You tripled the multiplier which is 3, so the answer is also tripled.
Hope this makes some sense lol
A gymnast's score for a routine is calculated by finding the sum of a difficulty score and an execution score, minus any penalties. The execution score starts at 10 and is reduced by deductions. The gymnast's score can be represented by: 6.9 + (10 – 1.534) – 0.3. What is the gymnast's score?
Answer:
the gymnast score is 15.066
Step-by-step explanation:
The computation of the gymnast score is shown below:
Given that
6.9 + (10 - 1.534) - 0.3
Here the 10 denotes the execution score
6.9 denotes the difficulty score
0.3 denotes the penalties
Based on the above information, the gymnast score is
= 6.9 + (10 - 1.534) - 0.3
= 6.9 + 8.466 - 0.3
= 15.066
Hence, the gymnast score is 15.066
Given h(x)=5x-2, find h(5)
Answer:
h(5)=23
Step-by-step explanation:
The monthly salry of Mr jha is Rs 165000.he spends his income in every month in the following ways food 20 percent house rent 25 percent fuel 10 percent miscellaneous 15 percent find his monthly expenditure on each item. how much does he save every month
Answer:
Total monthly expenditure = Rs 115,500
Total savings = Rs 49,500
Step-by-step explanation:
Total salary = Rs 165000.
Food = 20%
= 20/100 × Rs 165,000
= 0.2 × 165,000
= Rs 33,000
House rent = 25%
= 25/100 × Rs 165,000
= 0.25 × 165,000
= Rs 41,250
Fuel = 10%
= 10/100 × Rs 165,000
= 0.1 × 165,000
= Rs 16,500
Miscellaneous = 15%
= 15/100 × Rs 165,000
= 0.15 × 165,000
= Rs 24,750
Total monthly expenditure = food + house rent + fuel + miscellaneous
= Rs 33,000 + Rs 41,250 + Rs 16,500 + Rs 24,750
= Rs 115,500
Total monthly expenditure = Rs 115,500
Total savings = Total salary - Total expenditure
= Rs 165,000 - Rs 115,500
= Rs 49,500
Total savings = Rs 49,500
Find the x value of the system of equations. Use the technique of ELIMINATION to solve this problem. Proper work must be shown on your work submission. 3x-2y=4 5x+y=11 the answer choices are 2 , -1 , 1 , -2
Answer:
2
Step-by-step explanation:
Given the equation :
3x - 2y = 4 - - - (1)
5x + y = 11 - - - (2)
Multiply (1) by 1 and (2) by 2
3x - 2y = 4 - - - - - (3)
10x + 2y = 22 - - (4)
Add (3) and (4)
13x = 26
x = 26/13
x = 2
Two binomials were multiplied together and the result is represented by the 1 point
algebra tiles shown. What are the two original binomials?
Answer:
What are the answers?
Step-by-step explanation:
X Y
27 9
48 16
63 21
Does Y vary directly with x
Yes or no
what
[tex] \sqrt{9} [/tex]
Answer:
3 is the answer ####%%##
PLEASE HELP ASAP!!
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
I WILL NAME BRAINLIEST
Answer:
J(8,4)K(4,10)L(12,12)M(14,10)
3D3L -> J(8,1)K(4,7)L(9,9)M(11,7)
2R3D -> J(10,1)K(6,7)L(14,9)M(16,7)
3L2UP -> J(5,6)K(1,12)L(9,14)M(11,12)
which is the best approximation of square root of 51
a 5.9
b 5.3
c 9.2
d 7.1
need answer asap
Answer: Answer is D.
Step-by-step explanation:
Answer:
d 7.1Step-by-step explanation:
Use a calculator
Solve two sixths times three fifths.
six thirtieths
seven thirtieths
five elevenths
six elevenths
Answer: 2/6 times 3/5 = 1/5
Step-by-step explanation:
Answer:
Six thirtieths is the answer
Find m ABD. Please help me.
Answer:
31x
Step-by-step explanation:
Were just looking at the top triangle because it has the points A,B, and D. now we solve for x (aka answer the equation in the parentheses). We need to get rid of the 22 so we only have x. We do that by adding it to itself so it equals 0. What we do to one side we do to the other. Now adding 22 to 9 we get 31 (put the x back).
9x - 22
+22 +22
9x - 22 = 31x
Cole averaged 35 points per game in last year's Math Hoops season. This year he has increased his scoring by 30%. What is his new average score per game?
Answer:
45.5 points per gamesl
Step-by-step explanation:
Cole averaged 35 points per game in last year's Math Hoops season. This year he has increased his scoring by 30%. What is his new average score per game?
Step 1
We find how many points the score increase by
The percentage increase = 30%
Hence:
30% × 35 points
= 10.5 points
Step 2
His new average score =
Former score + increase
= 35 + 10.5
= 45.5 points per game
Write the following precent as a decimal 1/8%
Answer:
.125
Step-by-step explanation: To convert 1/8 to a decimal, divide the denominator into the numerator. 1 divided by 8 = . 125. To convert the decimal .
Answer: 0.00125
Step-by-step explanation:
percent= decimal×100 therefore, decimal=percent/100 so 1/8 divided by 100 is 0.00125
Write 22 decreased by 6 as an algebraic expression
Answer:
22-6
Step-by-step explanation:
there isnt a variable so the answer is 16
Answer:
I am pretty sure you would just write 22-6
Step-by-step explanation:
12.5% of what number is 24
Answer:
192
Step-by-step explanation:
Evaluate the expression 50g^2 if g = 1/5.
Answer:
2
Step-by-step explanation:
50*1/5 squared
1/5 = 0.2.
0.2 squared = 0.04
0.04 * 50 = 2
The expression after simplifying gives as 2.
What are like and unlike terms in an expression?In Algebra, the like terms are defined as the terms that contain the same variable which is raised to the same power. In algebraic like terms, only the numerical coefficients can vary. We can combine the like terms to simplify the algebraic expressions.
Given here: 50g² and g = 1/5.
Thus substituting we get 50 × 1/25=2
Hence, The expression after simplifying gives as 2.
Learn more about like and unlike terms in an expression here:
https://brainly.com/question/29078851
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A bag of 7 bouncy balls cost $9.80. What is the unit price?
Answer:
$1.40
Step-by-step explanation:
Unit = "1 value"
9.80/7 = 1.4