Hi there!
[tex]\large\boxed{x = 2.5}[/tex]
We can solve for x by using an elimination of variables.
2x + 5y = 20
-2x + 10y = 25
Add the two equations to eliminate x:
0x + 15y = 45
15y = 45
y = 3
Substitute this value of y into an equation to solve for x:
2x + 5(3) = 20
2x + 15 = 20
2x = 5
x = 2.5
Answer:
I believe it is (5/2,3)
Step-by-step explanation:
Hope this works for u :)
The 17 students on the varsity basketball team want to raise 857.11 to buy new game jerseys,they have already raised 218.25,if each student raises the same amount,how much more money must each other raise?
Answer:Each of the 17 students will need to raise 37.58 each
Step-by-step explanation:
Total amount needed to be raised =857.11
Amount of money already raised =218.25,
Amount of money required to complete the amount needed to be raised =857.11 -218.25=638.86
Since there are 17 students to raise the money, Each student will raise
638.86/17=37.58
Each of the 17 students will need to raise 37.58 each to complete the money
Explain what's happening in Step 2.
Answer:
The person is adding the numbers in the tenth place and carrying the leftover ten over onto the one's place.
Step-by-step explanation:
HELP ASAP! Math - Pixel Art- Area and Perimeter i will mark brainly please help!!!!!!!
Answer:
Area
4 and width 8 equals 32
Perimeter
length 4 and width 8 equals 24
Area
length 20 and width 22 equals 440
Perimeter
length 20 and width 22 equals 88
Area
length 12 and width 8 equals 96
Perimeter
length 12 and width 8 equals 40
Area
length 15 and width 20 equals 300
Perimeter
length 15 and width 20 equals 70
Isn't this what you are asking for or is it something else. I hope this helps, If I did the answer wrong tell me and I will change it
The graph of y = x2 + 11x + 24 is equivalent to the graph of which equation?
y = (x + 8)(x + 3)
y = (x + 4)(x + 6)
y = (x + 9)(x + 2)
y = (x + 7)(x + 4)
Answer:
y = (x+8)(x+3)
Step-by-step explanation:
The equivalent expression to the given quadratic equation is:
y = (x + 8)*(x + 3).
Which equation is equivalent to the given one?Here we start with:
[tex]y = x^2 + 11x + 24[/tex]
To solve the problem, we need to find the roots of the quadratic equation, to do it, we will use the Bhaskara's formula:
[tex]x = \frac{-11 \pm \sqrt{11^2 - 4*24} }{2} \\\\x = \frac{-11 \pm 5 }{2}[/tex]
Then the two solutions are:
x = (-11 + 5)/2 = -3x = (-11 - 5)/2 = -8Meaning that we can write the cuadratic equation as:
y = (x + 3)*(x + 8).
So the correct option is the first one.
If you want to learn more about quadratic equations:
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What is the value of w?
Answer:
2
Step-by-step explanation:
If you need me to write it I will
ASAP need help!!
vvvv
Answer:
Step-by-step explanation:
5 5 5 m²
Maggie and jillian are both collecting postcards. Maggie has 4 times as many postcards as jillian. Maggie has 40 postcards.
How many postcards does jillian have?
Answer:
10
Step-by-step explanation:
braniyest pls
(I'm probably spammy lol)
More babes-
I just need help, like point me in the right direction, something.
I'm so tired-
Answer:
x= 9
Step-by-step explanation:
85 + 2x +2 + {180 -(11x + 6) }=180 (sum of angles in a triangle)
87 + 2x + 180 - 6 -11x = 180
87 -9x - 6 = 0
81 = 9x
x= 9
35% of flowers sold on a day were roses. If 42 roses were sold, how many total flowers were sold?
Hence, 120 flowers were sold in total on that day as the Roses made up 35% of the total number of flowers.
what is unitary method ?In mathematics, the unitary approach entails determining the value of a single unit and then using that value to determine the value of a certain number of units. It is frequently applied to issues concerning rates and proportions as well as issues relating to ratios and proportions. The unitary method, for instance, would result in a cost of $5 for 5 apples if the price of 1 apple is $2. To calculate the overall cost using the unitary method, we would multiply the $2 worth of one apple by the quantity we wish to purchase. Therefore $5 would be spent on 5 apples, or $2 each.
given
Assume that "x" represents the total quantity of flowers sold on that particular day.
Roses made up 35% of the total number of flowers, which means that:
0.35x = 42
By dividing both sides by 0.35, we can determine the value of "x":
x = 120
Hence, 120 flowers were sold in total on that day as the Roses made up 35% of the total number of flowers.
To know more about unitary method visit:
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B
13 ft.
5 ft.
A
C
12 ft.
Find the value of Tan (B) =
Answer:
5/12
Since you calculate tan ratios as tan(B)=opposite side/ adjacent side
Answer:
5
Step-by-step explanation: pls give me brainliest
One ticket to a show costs $20 at full price. Susan buys 4 tickets using a coupon that gives her 25% discount.
Answer: [tex]\$60[/tex]
Step-by-step explanation:
Given
One ticket costs $20
Susan buys 4 tickets with 25% discount
Cost of 4 tickets is [tex]4\times 20=\$80[/tex]
On applying discount, it costs
[tex]\Rightarrow 80-80\times 0.25\\\Rightarrow 80(1-0.25)\\\Rightarrow 80\times 0.75=\$60[/tex]
So, total cost of tickets is [tex]\$60[/tex].
On a map, the scale is 1 inch = 125 miles. What is the actual distance between the two cities if the map distance is 2 3/4 inches?
Answer:
343.75 miles
Step-by-step explanation:
2.75 * 125 = 343.75
what is the correct answer?
Answer:
well we can see the sign's a trapezoid
area of trapezoid = 1/ 2 × sum of parallel sides × height
= 1/ 2 × (7+5) × 4
= 1/ 2 × 12 × 4
= 24 Sq feet
that's first option
I can't figure out the answer
Answer:
63/100
Step-by-step explanation:
Im Pretty sure this the correct answer
Use elimination to find the solution to the system of equations. 9r + 2y = 59
2r + 5y = 4
A. I = I = 7, y = -2
В. 1 41 I = 2 , Y = 9
C. I = 5, y 14 5 55
D. 1 = 9, y = 2
Answer:
r = 7
y = -2
Step-by-step explanation:
9r + 2y = 59 (Multiply this by 5)
2r + 5y = 4 (Multiply this by -2)
45r + 10y = 295
-4r - 10y = -8
41r = 287
r = 7
2r + 5y = 4
2(7) + 5y = 4
14 + 5y = 4
5y = 4 - 14
5y = -10
y = -2
whats the answer to 876 + 17.2638
893.2638
is this what you mean?
Please answer question :) need help
Answer:
C. 1/3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
Identify
a = 2/3
b = 3/4
c = 1/2
a(b - c²)
Step 2: Evaluate
Substitute in variables: 2/3[3/4 - (1/2)²][Brackets] Exponents: 2/3(3/4 - 1/4)(Parenthesis) Subtract: 2/3(1/2)Multiply: 1/3Answer:
C. 1/3
Step-by-step explanation:
Replace each letter with their corresponding value and simplify using the order of operations:
a(b - c*c)
turns into:
[tex]\frac{2}{3} (\frac{3}{4}-(\frac{1}{2}*\frac{1}{2}))[/tex]
You want to remember that order of operations follows the rules of PEMDAS. The operations within the parentheses come first.
1/2 times 1/2 = 1/4
Now we have:
[tex]\frac{2}{3}(\frac{3}{4}-\frac{1}{4})[/tex]
Then 3/4 - 1/4 = 2/4 = 1/2
[tex]\frac{2}{3}(\frac{1}{2})[/tex] = 1/3
Therefore your answer is C. 1/3
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Write the equation of the line in fully simplified slope-intercept form.
For the remaining portion of the living room not covered by the new flooring, Michelle wants to paint the concrete. After carefully measuring the exposed concrete, she determines 6 square feet are already painted and the remaining unpainted area forms a square with side length x. The entire area of concrete, including the painted and unpainted portions, is a total of 31 square feet. Write an equation that could be used to find the unpainted square side length x
Answer:
[tex]x^2 + 6 = 31[/tex]
Step-by-step explanation:
Given
[tex]Painted = 6ft^2[/tex]
[tex]Total = 31ft^2[/tex]
Dimension of unpainted area:
[tex]Length = Width = x[/tex] --- Square
Required
Determine an expression to solve for x
First, calculate the area of the unpainted space;
[tex]Area = Length *Width[/tex]
[tex]Area = x*x[/tex]
[tex]Area = x^2[/tex]
The unpainted area, added to the painted area, equals the total area.
So, we have:
[tex]Area + Painted = Total[/tex]
[tex]x^2 + 6 = 31[/tex]
Hence, the expression is: [tex]x^2 + 6 = 31[/tex]
What is an equation of the line that passes through the points (-3, -5) and
(-5, -3)?
Answer: y = -x-8
Step-by-step explanation:
(-3,-5) (-5,-3)
Slope (m) = (y-y)/(x-x) = (-3- -5)/(-5- -3) = (-3+5)/(-5+3) = 2/- 2 = - 1
m = - 1
Point (-3,-5)
y-y=m(x-x)
y- -5= -1(x- -3) = y+5 = -1(x+3)
y+5 = - x -3
y+5= - x - 3 (substract 5 from both sides)
y = - x - 8
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Answer:
63/50 or 1 13/50
Step-by-step explanation:
Answer:
Step-by-step explanation:
the first one
how to get a square root of a given number
Answer:
See below
Step-by-step explanation:
The square root of a number is defined as [tex]\pm y=\sqrt[2]{x}[/tex] where [tex](\pm y)^{2}[/tex] gives the original number. For example, [tex]\sqrt{4}=\pm2[/tex] because [tex]2^{2}=2*2=4[/tex] and [tex](-2)^{2}=-2*-2=4[/tex].
Example of Calculating Square Roots with Multiplication :
The square root of 9 is 3. The number 9 is an integer. This number comes from multiplying 3×3 which results in the number 9The square root of 25 is 5. The number 25 is an integer. This number comes from multiplying 5×5 which results in the number 25The square root of 81 is 9. The number 81 is an integer. This number comes from multiplying 9×9 which results in the number 81The square root of 100 is 10. The number 100 is an integer. This number comes from multiplying 10×10 which results in the number 100Example of Calculating Square Roots by Division
The square root of 4 is 2. The number that divides 4 is the number 2, like 4: 2 makes the number 2. It cannot be divided anymore and can be multiplied by itself.The square root of 9 is 3. The number that divides 9 is the number 3, such as 9: 3 to produce the number 3. It cannot be divided anymore and can be multiplied by itself.The square root of 25 is 5. A number that divides 25 is 5, as 25:5 makes 5. It is indivisible and can be multiplied by itself.2a2 + 3b2 + a2 + b2
Answer:
Solution given:
2a2 + 3b2 + a2 + b2
adding like terms
2a²+a²+3b²+b²
3a²+4b² is a required answer.
what is the value of x??
Answer:
x + 5 = 5×
7x - 5 = 2x
5x + 2x + x = 180
8× = 180
8 8
x = 22.5
The sum of two numbers is 24. The difference of
those numbers is 8. Write a system of equations to
represent the scenario.
Answer:
Call x and y the 2 numbers. x + y = 32 x - y = 8 2x = 40 -> x = 20, and y = 32 - 20 = 12.
Step-by-step explanation:
Which equation represents a line which is parallel to the line 3x+y=8?
A. y=3x-4
B. y=−3x+2
C. y= 1/3x + 6
D. y= -1/3x-2
Answer:its A or C
Step-by-step explanation:i hope this helps
Someone please help me with this, is very urgent
Answer:
1=75 Degrees
2=105 Degrees
Step-by-step explanation:
sECOND LAST QUESTION PLS HELP DHGIFSTSTSHVJD
Answer:
96
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Answer:
It A. 96 inches
Hope it helps!
Step-by-step explanation:
i really need help!! please! 10 points
Answer:
48°
Step-by-step explanation:
The angle CRS looks like a "L" shape, meaning that both lines are perpindicular to each other, resulting in a right angle (which is 90°)
90° + 42° = 132°
180° - 132° = 48°
Answer:
<RCS = 48 degrees
Step-by-step explanation:
I'm pretty sure that is a right triangle
180-90-42=48