Answer:
b
Step-by-step explanation:
Take 1/2 off of the 31 1/12 to make it easier. That gives you 31 and 4. Then take one away from both numbers to get to 30 and 3. 30 minus 3 is 27.
What is the divisor in the following problem? 18 + 6 = 3 .
Quadrilateral ABCD has the following vertices:
A(-6, -2)
B(-4,4)
C(8,1)
D(6, -6)
Also, ZA is a right angle.
Is quadrilateral ABCD a rectangle, and why?
answers: (ignore the chosen one)
Answer:
It b
Step-by-step explanation:
All 3 sides of the shape is parallel as well as A so therefore is b
Answer:
No, because AB is not parallel to CD
What is the best estimate for the liquid volume of a small cartoon of milk
Answer:
Answer: 2 ml
Step-by-step explanation:
1 litre is equal to 1,000 ml, and therefore the best solution is 2 ml.
At the beginning of the year Monica puts a set amount of money into her health benefit account. Every month she withdraws $15 from this account for her contact lenses. After 3 months she has $255 left in her account.
Write an equation in slope-intercept form to represent the relationship between the time that has passed and the amount of money left in Monica's account. Let x represent the time in months and y represent the amount of money remaining in the account.
Answer:
An equation in the slope-intercept form will be:
y = 15x+210Step-by-step explanation:
We know The slope-intercept form of the line equation
[tex]y = mx+b[/tex]
where
m is the rate of change or slopeb is the y-interceptLet x represent the time in months
Let y represent the amount of money remaining in the account.
Given that every month Monica withdraws $15 from this account for her contact lenses
Thus, the rate of change or slope = m = 15
Given that after 3 months she has $255 left in her account.
So, we take the point (3, 255)
substituting m = 15, x = 3 and y = 255 in the slope-intercept form to determine the y-intercept
y = mx+b
255 = 15(3) + b
switch sides
15(3) + b = 255
45 + b = 255
b = 255 - 45
b = 210
Now, substituting m = 15 and b = 210 in the slope-intercept form of the line equation
y = mx+b
y = 15x+210
Therefore, an equation in the slope-intercept form will be:
y = 15x+210very easy need by morning answer please
Answer:
-9
Step-by-step explanation:
What % of 30 is 16.5
Answer:
55% is ur answer :)
Convert fraction (ratio) 16.5 / 30
any helllp please
i neeed help pleasee
There are 136 boys and 172 girls at Wood Middle School. There are 312 boys and 264 girls at Parker Middle School. What is the ratio of students at Wood Middle school to students at Parker Middle School? OA. B. 17 39 144 77 43 66 77 144
Answer: 77 : 144 or 77/144
Step-by-step explanation:
First find the total number of people for each school.
Wood Middle School : 136 + 172 = 308
Parker Middle School: 312 + 264 = 576
The ratio of students at Wood school to students at Parker Middle School is
308 : 576 = 77 : 144 or 77/144
Answer: 77 : 144 or 77/144
Step-by-step explanation:
First find the total number of people for each school.
Wood Middle School : 136 + 172 = 308
Parker Middle School: 312 + 264 = 576
The ratio of students at Wood school to students at Parker Middle School is
308 : 576 = 77 : 144 or 77/144
Which expression is equivalent to the given expression?
13x−29x
Please i need an answer fast
Devon's team has won 21 games and lost 7 this season. What is the
approximate probability that his team wins the next game it plays?
Answer:
i think is A
Step-by-step explanation:
Answer: probability of won=
no. of won match=21
no. of total match=28
so they cut and made 3/4
probability of lost match=
no. of lost match=7
no. of total match=28
so they cut and made 1/4
HOPE THIS HELPS
Aaron bought flowers for his mother. The flowers were half off the original price. He paid $1.12 in sales tax. If he paid a total of $15.57, what was the original price of the flowers?
Answer:
$7.225
Step-by-step explanation:
Answer:
D) 28.90
Step-by-step explanation:
28.90 divided by 2 = 14.45 + 1.12 (sales tax) = 15.15 (which was the price he had paid)
Sam used algebra tiles to make this model of an equation. Based on Sam's equation what statement is true.
Answer:
(B)
Step-by-step explanation:
Let us denote rectangular tiles by R and square tile by S, then
According to figure.
3 rectangular tiles +2 square tiles +2 square tiles =2 rectangular tiles +4 square tiles +1 rectangular tiles +4 square tiles
∴3R+2S+2R=2R+4S+R+4S
⇒5R+2S=3R+8S
⇒5R-3R=8S-2S
⇒2R=6S
⇒R=3S
Hence, 0ne rectangle =3 square
NEED HELP ASAP
Select the correct answer.
4
X
-4
2
-2
Which of the following inequalities is graphed on the coordinate plane?
O A. y > -21 + 1
OB. y -23 + 1
OC. y < -25 + 1
OD. y < -23 + 1
Answer: D. y ≤ -2x = 1
Step-by-step explanation: To determine the inequality, first determine the line equation.
Line equation can be written as
[tex]y-y_{0}=m(x-x_{0})[/tex] , called point-slope form of a line equation,
where
m is slope of the equation
x₀ and y₀ are points in the line
Slope is calculated as the difference between y-coordinates divided by the difference between the x-coordinates:
[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
From the graph, we have 2 points: (-1,3) and (1,-1), so find slope:
[tex]m=\frac{3+1}{-1-1}[/tex]
m = -2
Replacing slope and point (0,1) into point-slope form:
[tex]y-1=-2(x-0)[/tex]
[tex]y=-2x+1[/tex]
This is the equation of the line.
Now, we determine the inequality:
Observe the graph, if the line is a continuous one, it is a less-than-or-equal-to (≤) or more-than-or-equal-to (≥). If it was a dotted line, the symbol would be less-than (<) or more-than (>).
In our case, the line is continuous so it will be ≥ or ≤. To determine which one, we can plug a point located in the shaded part, for example (0,0). Substituting:
y = -2x + 1
0 ≠ -2(0) + 1
0 ≤ 1
Therefore, line equation of the graph is [tex]y\leq -2x+1[/tex].
What is the common difference between successive terms in the sequence?
2, 8, 14, 20, 26,
Answer:
They get greater, obviously and they never lessen
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
The common difference is was is being added with each number
For example-
8 - 2 = 6
14 - 8 = 6
And so on, Therefore-
Common difference is 6
1. Solve 2/3 X 4/5
a.2/3
b.8/15
c.2/15
d.6/8
Answer:
Step-by-step explanation:
2/3 x 4/5 multiply the terms
8/15
If the odds of winning the prize is 1 : 53 and If I purchased 84 tickets what are the odds of winning in percentage. Step by step?
Answer:
79.81% probability of winning.
Step-by-step explanation:
For each ticket, there are only two possible outcomes. Either you win, or you do not. The probability of winning in a ticket is independent of other tickets. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
The odds of winning the prize is 1 : 53
This means that [tex]p = \frac{1}{53}[/tex]
If I purchased 84 tickets what are the odds of winning in percentage.
To win, at least one of the tickets must have the prize, of 84 tickets, so [tex]n = 84[/tex].
We have to find [tex]P(X \geq 0)[/tex], which is given by:
[tex]P(X \geq 0) = 1 - P(X = 0)[/tex]
In which
[tex]P(X = 0) = C_{84,0}.(\frac{1}{53})^{0}.(\frac{52}{53})^{84} = 0.2019[/tex]
[tex]P(X \geq 0) = 1 - P(X = 0) = 1 - 0.2019 = 0.7981[/tex]
79.81% probability of winning.
There are 4 red, 6 green, and 5 yellow pencils in a jar. Once a pencil is selected, it is not replaced.
What is the probability you will get a red and then a yellow?
you have a 4/15 chance of getting red and a 5/14 chance of getting yellow staight after.
a) For AQRS use the Triangle Proportionality Theorem to solve for x.
b) After you have solved for x, what is the Perimeter of AQRS?
Answer:
a. x = 14
b. Perimeter = 77
Step-by-step explanation:
a. Based on the Triangle Proportionality Theorem:
[tex] \frac{2x - 2}{13} = \frac{21 - 7}{7} [/tex]
[tex] \frac{2x - 2}{13} = \frac{14}{7} [/tex]
[tex] \frac{2x - 2}{13} = 2 [/tex]
Cross multiply
[tex] 2x - 2 = 2(13) [/tex]
[tex] 2x - 2 = 26 [/tex]
Add 2 to both sides
[tex] 2x = 26 + 2 [/tex]
[tex] 2x = 28 [/tex]
Divide both sides by 2
x = 14
b. Perimeter of ∆QRS = RQ + QS + RS = (2x - 2) + 13 + 17 + (21 - 7) + 7
Plug in the value of x
= (2(14) - 2) + 13 + 17 + 14 + 7
= 26 + 13 + 17 + 14 + 7
= 77
5) Out of a group of 40 students, 14 are taking English, 29 are taking Chemistry, and 5 are
taking both English and Chemistry.
a) Draw a Venn diagram to represent this situation.
b) How many students are in neither class?
c) What is the probability that a randomly-chosen student from this group is taking only
the Chemistry class?
a. Venn diagram attached below.
b. 2 students are in neither English nor Chemistry.
c. The probability that a randomly chosen student is only taking chemistry is 24/40, or 6/10 because out of the 40 students, 24 of them take exclusively the chemistry class.
Add the expressions
Answer:
to what?
Step-by-step explanation:
Answer:
x+y=z
Step-by-step explanation:
(5y-12)+(-5y-1) find the sum
Step-by-step explanation:
Given
(5y - 12 ) + ( -5y - 1)
= 5y - 12 - 5y - 1
= 5y - 5y - 13
= - 13
Hope it will help):)❤
James can buy 12muffins for $9.60 or 3 muffins for $2.70. Which is the better deal?
Answer:
12 muffins for $9.60
Step-by-step explanation:
Hello guys come up on
ID = 4349418663
Pass = 1234
Write the equation in standard form
using factoring.
f(x) = (2x
+
1)(x – 4)
Answer:
2x^2 - 7x - 4
Step-by-step explanation:
Given the expression f(x) = (2x+1)(x – 4)
To write it in standard form, we need to factorize it
(2x+1)(x – 4)
= 2x(x) - 2x(4) + x - 4
= 2x^2 - 8x + x - 4
= 2x^2 - 7x - 4
hence the expression in standard form is 2x^2 - 7x - 4
express each ratio as a fraction in simplest form .3km to 500m
3z + 6(2-5) = -48 i need help asap
Answer:
-10
Step-by-step explanation:
12-30
3z+12-30=-48
3z=-30
z=-10
When paying for purchases, debit cards ____.
Are cash
Are exactly like credit cards
Take money directly from your account
Have no additional benefits like cash
Answer: Are exactly like credit cards
Step-by-step explanation:
Help ASAP find the values of x and y
Answer:
x = 48° and y = 70°
Step-by-step explanation:
As it is an isosceles triangle so base angles of isosceles triangle are equal
x +7° = 55°
x = 55° - 7°
Therefore x = 48°
Now
x + 7 = (48 + 7)°= 55°
Calculating the value of y as sum of angles of triangle is equal to 180°
y + 55° + 55° = 180°
y + 110° = 180°
y = 180° - 110°
Y = 70°
Hope it will help :)
Answer:
x=48
y=70
Step-by-step explanation:
Key skills required are triangles, isosceles triangles, one variable equations, interior angle sums
1) You have to start with the fact that the triangle is isosceles. This means that the 2 base angles (x+7 and 55) are equal to each other.
An isosceles triangle has 2 sides equal and 2 angles equal.
2) With the explanation above --> x+7=55
3) Subtract 7 from both sides and you will get x=48
4) The sum of all the angles in a triangle is 180 degrees. The two bottom angles are 55 degrees each, making their sum 55+ 55= 110 degrees.
5) 110 degrees + y degrees = 180
6) subtract 110 from both sides and y would equal 70.
Hope you understood and have a nice day!! :D
Find ex and Y to the quadrilateral is a parallelogram.
You have the same bowl, with 5 orange, 6 blue, 3 green, 4 red and 7 yellow candies. You take out an orange candy
from the bowl. What is the new probability that you will draw another orange candy?
A 1/5
B 1/6
C 1/8
D 5/24
Answer:
A) 1/5
Step-by-step explanation:
There are 25 candies total, and you want to choose the 5 orange candies there.
That's 5/25.
Simplifying, we divide both sides by 5.
Thus, we get:
1/5.