Answer:
110
Step-by-step explanation:
Simplify:
2(xy - 7) = [?]
x = -1 and y = 3
Answer:2(xy-7)= -20
Step-by-step explanation:
Plug in -1 for x and 3 for 3, as the question says that x and y represent those values.
2(xy-7) = ?
2((-1)(3) - 7) = ?
2(-3-7)=?
2(-10)
-20
2(xy - 7) = -20
The expresssion 2(xy - 7) = -20 , when x = -1 & y = 3
What is expression ?
In mathematics, if two or more numbers or variables present with one or more mathematical operations, then the statement is called expression.
Example : 4x-3y+4, where x,y are variables, 3 & 4 are numbers and they are operated with addition and subtraction, so this is an expression.
What is the value of given expression ?Here, in the problem, x = -1 & y = 3
The given expression is 2(xy - 7) .....(1)
Now, we have to put the values of x & y in (1),
So, 2(xy - 7)
= 2{(-1)(3)-7}
= 2{-3-7}
= 2×(-10)
= -20
So, the value of the expression is -20
Learn more about expression here :
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Write an equation for the line in slope-intercept form.
y = 1/2 x -3
Explanation: the y-intercept is where it crosses the y axis so the y-intercept is -3
12-3 ( x-8 ) simplify
Answer:
-3x + 36
Step-by-step explanation:
The first step is to distribute the -3 to (x - 8), like so:
12 - 3(x - 8)
12 - 3x + 24
Add like terms (12 and 24):
12 + 24 = 36
-3x + 36
Find the slope: (-1,5) and (2,-3)
Answer:
-2/3
Step-by-step explanation:
Answer:
(-3-5)/(2-(-1))=-8/3
Step-by-step explanation:
What is the Surface Area of the prism, in square centimeters?
Answer:
[tex]2( \frac{1}{2} \times 4 \times 6 ) + 2( 5 \times 10 ) + ( 6 \times 10 )[/tex]
[tex]= {184cm}^{2}[/tex]
thomas has a square swimming pool at home. Each side is 18 m long. What is the area of the swimming pool
Answer:
324 m^2
Step-by-step explanation:
since it is a square, each side is 18 meters. to find the area, you multiply the length by the width. the answer is 324 m^2
Please help with this
Answer:
C
Step-by-step explanation:
A quadratic function can be defined as a function where the highest degree or exponent is 2. Since option B has a zero in front of the x squared, it is not a quadratic function because 0 times anything is zero. Therefore, the only other option with an exponent of 2 is C.
Hope this helped! :D
What percent of 50 is 15? 0.3% 3% 3.33% 30%
Answer:
30%
Step-by-step explanation:
15/50 × 100% = 30%
Colin, Sara and Gordon share some sweets in the ratio 5:2:1. Colin gets 36 more sweets than Gordon. How many sweets are there altogether?
c=36+g
c:g:s=5:2:1
The ratio gives us two equations so that's three equations in three unknowns. Actually we're after the total t; let's put that in to solve for directly.
c:g:s:t = 5 : 2 : 1 : 5+2+1
We turn the ratio to fraction equations. s has the one; let's write everything in terms of s.
c/s = 5/1, g/s = 2/1, t/s = 8/1
Clearing the fractions,
c = 5s, g = 2s, t = 8s
Our other equation is
c = 36 + g
Substituting in for c and g,
5s = 36 + 2s
Solving,
3s = 36
s = 12
That's right; let's just get the total t.
t = 8s = 72
Answer: 72
78% of what number is 22?
Answer: 22 is 78% of 28
Step-by-step explanation:
22÷28×100=78
78 is the percentage
Answer:
28. 21 or 28.2 or 28
Step-by-step explanation:
Since 22 is equal to 78% percent, then x is equal to 100%
78% = 22
100% = x
Cross múltiply
100(22) = 78x
2200 = 78x
÷ 78. ÷78
28.205 = x
Depending on what your rounding off to, nearest tenth, hundreths, or whole number
tenth = 28.2
whole number= 28
hundreth= 28. 21
You revived 1/4 pound of candy from your grandmother, 1/2 pound of candy from your sister, and 1/8 pound of candy from your best friend. How many pounds of candy did you receive?
Answer:
⅞ pound
Step-by-step explanation:
You received 1/4 pound of candy from your grandmother.
You received 1/2 pound of candy from your sister.
You received 1/8 pound of candy from your best friend.
The total amount of candy you received is given as the sum of all the candy that he received from your grandmother sister and best friend.
The total amount of candy is therefore:
¼ + ½ + ⅛ = ⅞ pound
You received ⅞ pound of candy in total.
Solve if u r genius
11*11=4
22*22=16
33*33=?
Answer:
36
Step-by-step explanation:
bc 11*11=2*2=4
22*22=4*4=16
33*33=6*6=36
u add 1 and 1 together
then u add 2 and 2 together and then u add the 3 and 3 together to get 2, 4 and 6
Answer:
The answer is 36.
Step-by-step explanation:
This is a brain-solving question :
(1+1)×(1+1)
= 2×2
= 4
(2+2) × (2+2)
= 4×4
= 16
(3+3) × (3+3)
= 6×6
= 36
What is 2x+3=x+15 pls help
Answer:
x = 12
Step-by-step explanation:
2x+3=x+15 (subtract x from both sides)
2x + 3 - x = x + 15 - x
x + 3 = 15 (subtract 3 from both sides)
x + 3 - 3 = 15 - 3
x = 15-3
x = 12
concrete is poured to create a slab in the shape of a rectangular prisim the slab is 50 yards long 1.5 yards wide and 0.25 yard stick how many cubic squares of concrete are needed to create slab
Answer:
18.75 cubic yards
Step-by-step explanation:
Multiply the length width and height by each other.
50 x 1.5 x 0.25 = 18.75
Answer:
18.75 yards³
Step-by-step explanation:
To solve this, we can solve for the volume of the rectangular prism by using the formula: [tex]V= l*w*h[/tex]
We can plug in the values, giving us:
V= 50×1.5×0.25= 18.75 yards³
What is the perimiter of the rectangle? Write your answer in scientific notation.
6.2 x 10^6cm (perimiter)
Answer:
68cm
Step-by-step explanation: this is the right answer :)
Find the exact valu
triangle.
variable that represents a side length in a right
On Bianca's 5th birthday gift of $100 cash from her dad. Bianca's dad promises to double her money
yearly if Bianca plans to not spend money but instead deposit into "daddy's - super-saving - account".
Will Bianca be able to afford her dream car, a Mini Cooper worth $30,000 when she turns 16? Use words,
numbers, and tables to explain your answer.
Answer:
Bianca would be able to afford her dream car conveniently when she turns 16.
Step-by-step explanation:
Bianca was 5 years and wish to project her savings for the next 11 years.
On her 5th birthday, she saves $100
Her dad promises to double her money yearly with respect to a condition. So that;
On her 6th birthday, she would save $ 200
On her 7th birthday, she would save $400
On her 8th birthday, she would save $800
On her 9th birthday, she would save $1600
On her 10th birthday, she would save $ 3200
On her 11th birthday, she would save $ 6400
On her 12th birthday, she would save $12800
On her 13th birthday, she would save $25600
On her 14th birthday, she would save $51200
On her 15th birthday, she would save $102400
On her 16th birthday, she would save $204800
When she turns 16, she would have a total sum of $409500.
Therefore, Bianca would be able to afford her dream car conveniently when she turns 16.
How many pennies are equal to 6 dimes?
Answer:
60 pennies
Step-by-step explanation:
Answer:
60 pennies
Step-by-step explanation:
Find the volume of a pyramid with a square base, where the area of the base is
8.7 m and the height of the pyramid is 10 m. Round your answer to the nearest
tenth of a cubic meter.
Answer: 29.0
Step-by-step explanation:
The volume of a pyramid is equal to l*w*h/ 3 and we know that the length times the width is the same as the base.
so we will multiply 8.7 * 10= 87 /3= 29
Volume = 87 m³
You need to multiply the area and the height to find the volume. If you have the length, width, and height, then you need to multiply and 3 and divide it by 3. Hope I helped :)
You are going to the grocery to buy the candies for you and your sisters/brothers. You want to buy
chocolates and gums. Each chocolate costs 1.50 AED and each gum costs 0.50 AED. At the end you spent a total
of 78.50 AED. You bought a total of 87 chocolates and gums combined. You must report the number of
chocolates bought and the number of gums bought. How many chocolates were bought and how many gums
were bought?
Answer: 35 chocolates were bought and 52 gums were bought.
Step-by-step explanation:
c + g = 87 where c is the number of chocolate and g is the number og gums
1.50c + 0.50g = 78.50 solve both equations by elimination.
-1.50c - 1.50g = -130.5
1.50 + 0.50g = 78.50
-1g = -52
g= 52
1.50c + 0.50(52) = 78.50
1.50c + 26 = 78.50
-26 -26
1.50c = 52.5
c = 35
what is between 1/6 and 2/6 on a number line
Answer:
3/12 or 1/4
Step-by-step explanation:
To find what is between, we have to use the formula:
x + y= z
z/2 = midpoint!
So, we can do that with this number.
1/6 + 2/6 = 3/6. We could simplify it, but let’s keep it at 3/6
3/6 divided by 2 = 3/6 · 1/2 = 3/12
So, the midpoint would be 3/12.
what is the slope of the line passing through (2,9) and (2,-14)
Answer:
The slope is undefined
Step-by-step explanation:
When graphed, the two points form a vertical line, since we can't divide the slope by zero thw slope is considered as undefined
A custodian carries a large key ring. The key ring has a radius of 4 centimeters. What is the key ring's circumference?
Answer:
About 25.13
Step-by-step explanation:
circumference equation: 2pi(r)
2pi(4) = 25.13
The area of a parallelogram is 12 ft^2 The height is 2 ft. Find the length of the corresponding base
Answer:
The length of the corresponding base is 6 ft.
Step-by-step explanation:
A = bh Use this equation to find the length of the base
12 = 2b Divide both sides by 2 to get b by itself
6 = b
If this answer is correct, please make me Brainliest!
Answer:
6
Step-by-step explanation:
did lesson
Consider circle C with angle ACB measuring StartFraction 3 pi Over 4 EndFraction radians.
Circle C is shown. Line segments A C and B C are radii. Angle A C B is StartFraction 3 pi Over 4 EndFraction radians.
If minor arc AB measures 9 inches, what is the length of the radius of circle C? If necessary, round your answer to the nearest inch.
6 inches
12 inches
18 inches
24 inches
Answer:
12 inches
Step-by-step explanation:
I just took the unit test review on edge
Since the minor arc AB measures 9π inches, the length of the radius of circle C is equal to: B. 12 inches.
Given the following data:
Arc length = 9π inches.Central angle = 3π/4 radians.How to calculate the length of the arc?Mathematically, the length of an arc formed by a circle is calculated by using this formula:
Arc length = rθ
Where:
r is the radius of a circle.is the angle measured in radians.Substituting the given parameters into the formula, we have:
9π = r × 3π/4
36π = 3πr
36 = 3r
r = 36/3
Radius, r = 12 inches.
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I NEED HELP WITH THIS
Answer:
(i think it is for q6 so) $6
Step-by-step explanation:
4.50÷3=1.50 (that's for 1 pound of fudge)
1.50×4=6
How can you determine if a point is a solution to a system of linear equations?
Please Help!
Answer:
You can substitute the x value of coordinate (x,y) in the equation. If the outcome = the y value in the coordinate (x,y), then you have determined it to be on the system of linear equations.
Step-by-step explanation:
Point P has a coordinates: ( Px , Py ).
You can choose which value is easy to substitute. Eighter start with the Py or you could start with the Px. It could save you time if you pick the right one for the job.
If you want to verify if any point is valid in any (linear) equation(s), you can:
a) substitute the x value of coordinate (x,y) in the equation, and if the outcome has the same value as y in the coordinate (x,y), then that point is a valid solution of the (linear) equation.
b) substitute the y value of coordinate (x,y) in the equation, and if the outcome has the same value as x in the coordinate (x,y), then that point is a valid solution of the (linear) equation.
Answer:
You can substitute the x value into the equation if the answer for y is the same for the y coordinate you will have your answer.
Step-by-step explanation:
Keith makes 8 dollars for each hour of work. Write an equation to represent his total pay p after working h hours.
Answer:
P=8h
Step-by-step explanation:
P is the total amount of dollars that Keith will make, while h is the number of hours he will work for. If you multiply the number of hours he works for and how much he makes in an hour which is 8. You will get the total amount.
Thanks for all the help
Answer:
<FBE
Step-by-step explanation:
supplementary just mean 180
Answer:
∠CBG or ∠FBG
Step-by-step explanation:
Supplementary angles add up to 180°.
Order each set of numbers from LEAST to GREATEST.
-4 , -5/4 , 0 , -5, -1.5
Answer:
-5, -4, -1.5, (-5/4) -1.25, 0
Step-by-step explanation:
The higher the negative the lower the number (least).
~Anna
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