Several expressions are shown below. Which expressions are equal to 18?
5x (9 x 2)
(9 X 2) X (4-3)
(9 X 2) + 3
22 - (9 X 2)
(9x2 + 7
4x x (9x2)
1 X 9 X 2)
3X (9x2)
Answers
Related Questions
Mr. Dennison bought us teachers 5 1/2 boxes of donuts. We destroyed them - We
ate 3 9/10 boxes! How nany boxes are leftover?*
Answers
Answer:
1 3/5 boxes
Step-by-step explanation:
There are 5 1/2-3 9/10 boxes left over. We need to simplify this expression.
First, convert both fractions to improper fractions:
11/2-39/10
Now, convert both fractions to have a common denominator of 10:
11/2*5/5 (note we can only do this because any number over itself is equivalent to 1, so technically this is multiplying the number by 1)
55/10-39/10=16/10
Convert it back into a mixed fraction:
1 6/10=1 3/5 boxes
Answer:
1 3/5 boxes
Step-by-step explanation:
5 1/2=5 5/10
leftover=5 5/10-3 9/10=1 6/10=1 3/5
make sure to take 1 from 5
1=10/10
and add it to 5/10 since cant' take away 9/10
Combine like terms.
34y + 23y =
Answers
Answer:
57y
Step-by-step explanation:
23y+34y = 57y
Enter the number 82.2978 rounded to the nearest hundredth (two decimal places) 82.2978 rounded to the nearest hundredth (two decimal places).82.2 978 rounded to the nearest hundredth two decimal places
Answers
Answer:
82.30
Step-by-step explanation:
Mark your place, look next door, five or greater add one more!
4 5/9 is the same as the sum of 2 1/3 and 5/6 times a number
Answers
the answer is 2 2/3
asdasdsadjklhsjkadgashjkvdjbzvxczxc
The number 3.14 is a rounded value of the mathematical quantity pie. If you replace 3.14 with pie, what is the exact formula for the circumference in terms of the diameter, d, and in terms of the radius r
Answers
Answer:
2pier is the formula for circumference
Step-by-step explanation:
PLEASE help me verify the identity!!
Answers
Step-by-step explanation:
[tex] \frac{ \tan {}^{2} (x) + 1 }{ \tan {}^{2} (x) } = \csc {}^{2} (x) [/tex]
[tex] \frac{ \tan {}^{2} (x) }{ \tan {}^{2} (x) } + \frac{1}{ \tan {}^{2} (x) } = \csc {}^{2} (x) [/tex]
[tex]1 + \frac{1}{ \tan {}^{2} (x) } = \csc {}^{2} (x) [/tex]
[tex]1 + \cot {}^{2} (x) = \csc {}^{2} (x) [/tex]
[tex] \csc {}^{2} (x) = \csc {}^{2} (x) [/tex]
3 A new club opens with 20 members, plus an unknown number of members from another club. The club allows only members to join once a year. After the first year, the number of total members doubles. The following year, half of the members that joined from the other club leave, but another 40 people join. After the third year, the total number of members triples. Give a non-simplified expression that represents the total number of members at the club after the third year. Then simplify your expression
Answers
Step-by-step explanation:
let the unknown members be X
At first, the club had 20 + X members
After the first year,
2( 20+X)
The second year,
2( 20 +X/2) +40
The third year,
3[2(20+ X/2) +40]
Total number =
20+X + 2(20+X) + 2( 20 +X/2) +40 +3[2(20+ X/2) +40]
= 20+ X + 40+ 2X + 40 +2X/2 +40 +3[40+2X/2 +40]
= 20+40+X +2X +40+X+ 40 + 3[ 40+40+X]
= 60 +3X +80+X + 3[80+X]
= 140+4X + 240+3X
=380 + 7X
-380=7X
X = -54.3
which inequality does the shaded region in the graph above represent
Answers
Answer:
a. y > 2x +3
Step-by-step explanation:
Your worksheet tells you that the > and < symbols will show as a dashed line. That eliminates the last two choices. (They use the ≥ and ≤ symbols.)
The shading is above the line, so the appropriate relation is the one that includes y-values greater than those on the line:
y > ... (matches choice a.)
A path 5m wide runs around the inside of a square park of side 100m , find the area of the path ,
COMPLETE EXPLANATION ..NO UNWANTED ANSWERS !!
Answers
[tex]\qquad\huge\underline{\boxed{\sf AnSwEr}}[/tex]
[tex]\small\underline\purple{\sf Given}[/tex]
[tex]\sf\longmapsto side \: of \: a \: square \: park \: = \: 100m \: [/tex]
[tex]\sf\longmapsto width \: of \: the \: pathway \: = 5m \: [/tex]
[tex]
\small\underline\purple{\sf To \: find}
[/tex]
[tex]\sf\longmapsto area \: of \: the \: pathway \: [/tex]
[tex]\small\underline\purple{\sf Solution}[/tex]
[tex]\sf\longmapsto side \: of \: inner \: sq \: = 100 - (5 + 5)[/tex]
[tex]\sf\longmapsto 90m[/tex]
[tex]\sf\longmapsto area \: of \: outer \: sq \: = 90 \times 90 {m}^{2} [/tex]
[tex]\sf\longmapsto 8100 {m}^{2} [/tex]
[tex]\sf\longmapsto area \: of \: pathway \: \: = \: area \: of \: outer \: - \: inner \: [/tex]
[tex]\sf\longmapsto 10000 - 8100[/tex]
[tex]\sf\longmapsto 1900 {m}^{2} [/tex]
Hope it helps ~
Statement 3m-9 true or false
Answers
Answer: true
Step-by-step explanation:
Find the number of sides of a regular polygon in which the measure of an interior angle is three times the measure of an exterior angle.
Answers
Also sum of all the exterior angles of any polygon is 360°
Given (n-2)180° = 3(360°)
=> n-2 = 6
=> n = 8.
Hence the number of sides of a polygon is 8
Qué diferencia hay entre la masa y el volumen de un objeto
Answers
Answer:
la masa es la magnitud fisica que tiene un cuerpo, es medida en Kg (kilogramos), G (gramos) el volumen es la magnitud fisica
que expresa la extensión en tres dimensiones: largo, ancho y alto, es medida en L (litros), MI( mililitros) suerte!!
Identify the domain and range of the function f(x) = -2x2 + 10x + 2.
Answers
Answer:
Step-by-step explanation:
range is the y values or ouputs
domain is inputs or x vvalues
we can use any x value
but at a certain y value, w can't go below that
find thatminimum
find the vertex
for
ax^2+bx+c
the x value of the vertex is
-b/2a
plug that in to the equaiton to get the y value
-b/2a=-(-6)/(2*2)=6/4=3/2
plug that in
2(3/2)^2-6(3/2)-9
2(9/4)-9-9
9/2-18
4.5-18
-13.5
domain=all real numbers
range=from -13.5 to positive infinity
mark me as brainliest
The domain and range of function is Domain: (−∞,∞), {x| x ∈ R},
Range: (−∞, 29/2], {y| y ≤ 29/2}.
What is domain and range?The constituent parts of a function are its domain and range. A function's domain is the set of all its input values, and the function's range is the possible output. Range, Function, and Domain. If the function f exists: A is the domain and B is the co-domain if every element in A is mapped to elements in B. Under the relation R, the image of the element a is represented by b, where (a, b) ∈ R.
Given function
f(x) = -2x² + 10x + 2.
range is the y values or ouputs
domain is inputs or x values
we can use any x value
but at a certain y value, w can't go below that
find that minimum
find the vertex
for
ax² + bx + c
the x value of the vertex is
-b/2a
plug that in to the equation to get the y value
-b/2a = -10/(-4) = 5/2
substitute value of x
f(x) = -2x² + 10x + 2
f(x) = -2(5/2)² + 10(5/2) + 2
f(x) = -25/2 + 50/2 + 2
f(x) = 29/2
Domain: (−∞,∞), {x| x ∈ R}
Range: (−∞, 29/2], {y| y ≤ 29/2}
Hence, Domain: (−∞,∞), {x| x ∈ R}
Range: (−∞, 29/2], {y| y ≤ 29/2}.
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use the ratio table to find the unit rate with the specified units
Answers
To get this you divide 3 by 3.60
"Duela Dent is single and had $189,000 in taxable income. Using the rates from Table 2.3 in the chapter, calculate her income taxes."
Answers
From the income provided, the taxable income will be $42170.
How to calculate the taxable incomeFrom the complete information, the calculation goes thus
First $9525 = 10% = $952.50
Next $9525 - $38700 = 12% = $3501.00
Next $38700 - $82500 = 22% = $9636
Next $82500 - $157500 = 24% = $18000
Next $157500 - $189000 = $10080
Taxable Income = $952.50 + $3501.00 + $9636 + $18000 + $10080
= $42170
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Write an appropriate and interesting word sum for: 439 and 514. Solve it.
Answers
It should be noted that this is addition of numbers and the value will be 953.
Addition of numbersIt should be noted that the question is about an appropriate and interesting word sum for 439 and 514.
This will be Joy has 439 pencils in a bag and Michael has 514 pencils in another bag. How many pencils for they have together?
This will be;
= 439 + 514
= 953.
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What are the steps to figure out this math word problem? 5.9% of women were diagnosed with diabetes, how many were not diagnosed?
Answers
Answer: The answer is 94.1
Step-by-step explanation:
Because if it's a percent then the total number would be 100%. So if 5.9% were diagnosed and the rest of the 100% weren't, you would do 100-5.9 which would give you an answer of 94.1.
Write an equation that represents the following statement. Five less than the product of r and two is 3.
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A line segment has an endpoint at (-4,8) and a midpoint
at (2,-2) what is the x coordinate of the other endpoint?
Answers
Answer:
The coordinates of the midpoints are the average coordinates of the endpoints. Suppose (x1,y1) and (x2,y2) are the endpoints and (xm,ym) is the midpoint, we have xm=x1+x22 and ym=y1+y22 . Therefore, 2xm=x1+x2 and 2ym=y1+y2 . From there, we should be able to figure the other endpoint out given an endpoint and the midpoint.
PLEASE help and please show steps!!
Answers
Answer:
THE ANSWER IS IN THE PICTURE
HOPE IT HELPS:)
angle A and angle B are vertical angles. If angle A= (5x – 9)° and angle B = (8x – 30) then find the value of x.
Answers
Answer:
x=7
Step-by-step explanation:
5x-9=8x-30
8x-5x=-9+30
3x=21
x=21/3=7
Which ratio is the simplest form of 68:84? A 2:3 B 17:21 C 34:42 or D 21:17? Please help me!
Answers
Answer:
B
Step-by-step explanation:
That is the answer
Answer:
The answer is B 17:21
Step-by-step explanation:
68:84
68/2=34
84/2=42
34:42 but we can also divide again so 34:42 can't be the simplest form of 68:84
so 34/2=17
42/2=21
17:21
Solye for r.
r - 4.5 < 11
Answers
Answer:
r < 15.5
Step-by-step explanation:
r - 4.5 < 11
+ 4.5 + 4.5
r < 15.5
r can be any number less than 15.5
Solve this put it in an equation and show your work
Answers
Answer:
[tex]y = -\frac{5}{2}x +30[/tex]
Situation: You start out with $30 and spend $2.50 every day on a soda.
Step-by-step explanation:
The equation of a line is y = mx + b
b = y-intercept
m = slope, rise/run
The line crosses the y axis at 30, so b is 30
Now for the slope, rise/run.
Start at 30 on the y-axis and go down to 25, that is a rise of -5. Now you are at (0, 25) on x-axis. Move right to the point (2, 25). The run is 2.
m = -5/2
The equation of the line is y = -5/2x + 30
Whats the next number in this pattern
2,3,5,9,17
. 34, 31,32,33
explain how you got the answer too
Answers
Answer:
33
Step-by-step explanation:
to get from 2 to 3 you add 1
to get from 3 to 5 you add 2
to get from 5 to 9 you add 4
to get from 9 to 17 you add 8
as you can see the numbers are doubling each time you add on
to get the next number double 8 = (8 × 2) = 16
so now 17 + 16 = 33
the next number is 33
To get from 2 to 3 you add 1
To get from 3 to 5 you add 2
To get from 5 to 9 you add 4
To get from 9 to 17 you add 8
Each time the number doubles
Sienna listened to music on her phone while she exercised at the gym. If she listened to 12 songs and each song was at least 35 minutes long, how many minutes did she spend exercising? Inequality Solution please help :(
Answers
12x ≥ 420
is solution, simple
if the store purchased a kitchen appliance for $42 and sold it for $58.80, what was the percent markup?
Answers
Answer:
40%
Step-by-step explanation:
Percent markup = new price - original price/original price
Do the subtraction first.
58.80 - 42.00 = 16.80
Now do the division
16.8/42 = 0.40
Change the decimal to a percent by moving the decimal two place to the right.
0.40 = 40%
for question 18 how do get the answer?
Answers
The total number of ships on both days 2x + 5
The total in all the 5 days is 7x +2
Sum of functionsFrom the given table;
Total number of ships on Monday = x - 4Total number of ship on Tuesday = x + 9The total number of ships on both days = x - 4 + x + 9
The total number of ships on both days 2x + 5
b) To get the total for all the days;
Total for all days = 2x + 5 + 2x + 3x - 7 + 4
Total for all days = 7x + 2
Hence the total in all the 5 days is 7x +2
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Calculate the midpoint of line segment AB with points A(1,4) and B(3,8).
Answers
Answer:
(2,6)
Step-by-step explanation:
Use the midpoint formula: (x1+x2/2, y1+y2/2)
Please helppp
At a coffee shop, the first 100
customers' orders were as follows.
Small
Medium
Large
Hot
5
48
22
Cold
8
12
5
What is the probability that a customer ordered a
hot drink given that he or she ordered a large?
P( Hot Large ) = [?]
Round to the nearest hundredth
Answers
Answer:
0.81.
Step-by-step explanation:
1) the required probability Hot_from_Large can be calculated as:
[tex]P(Hot \ | \ Large)=\frac{LargeHot}{LargeHot+LargeCold};[/tex]
2) according to the ratio above:
[tex]P(Hot \ | \ Large)=\frac{22}{22+5} =0.(814)=0.81.[/tex]
The probability that a customer ordered hot drink given that he or she ordered a large 29.3%.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.
Here,
P(Large| Hot) = n(Large and Hot)/n(Hot)
Using the data on the given table, we have:
P(Large| Hot) = 22/(5 + 48 +22)
P(Large| Hot) = 22/75
= 0.2933
= 29.3%
Hence, the probability that a customer ordered hot drink given that he or she ordered a large 29.3%.
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