CAN SOMEBODY HELP ME WITH THIS?????? I WILL MARK BRAINLIEST
CAN SOMEBODY HELP ME WITH THIS?????? I WILL MARK BRAINLIEST
Answers
Answer:
2/7 or about 29%
Step-by-step explanation:
2 are blue and there are 7 cards total so 2/7 and 2 divided by 7 is .2857 or .29 (29%).
Answer:
2/7
Step-by-step explanation:
There are 7 envelopes and 2 blue envelopes so the probability that the envelope will be blue is 2/7
Related Questions
Describe fully the single transformation that takes shape P to the shape Q
Answers
Answer:
Enlargement by a scale factor of 3 centre (1,0)
Step-by-step explanation:
Answer:
Dilation by a scale factor of 3 about (1,0)
Enlargement by a scale factor of 3 centre (1,0)
Step-by-step explanation:
u have to put both to get the full marks
hope this helped :)
Landon is building new bookshelves for his bookstore's new mystery section. Each shelf can hold 34 books. There are 1,265 mystery books. How many shelves will he need to build?
Answers
Answer:
37.2 = 38
Step-by-step explanation:
After divideing 1265 by 34, you will get 37.2. As you cannot have books not in bookshelves, you will have to round up and have 38 bookshelves.
1. The sum of a number and ten.
Answers
X+10
Explanation:
Break down the information given to you to try and identify what the algebraic expression must looks like. You know that you're dealing with
a sum
→
this means that you are adding something, so you're going to use the
+
sign;
of a number
→
this means that you're dealing with a variable. The most common notation for a variable is
x
.
and 10
→
this is simply an integer that must appear in the algebraic expression along the variable
x
.
So, put all this together to get
x
+
10
You're adding an unknown number,
x
, to an integer,
10
Answer:
x+10
Step-by-step explanation:
sum = addition (+)
number = variable because we don't know what the number is yet (x)
ten=ten
So by this we can get x+10
A department store buys 500 shirts at a cost of $13,500 and sells them at a selling price of $30 each. Find the percent markup.
Answers
Answer:
5.5% hope this helps have a great day!
Step-by-step explanation:
Answer:
450
Step-by-step explanation:
i think if you do 13,5000 divided by 30 you get 450 thats why im saying 450
Pure copper was mixed with a 10% copper alloy to produce an alloy thát was 25% copper. How much of the pure copper and how much 10% alloy were used to produce 36 kg of 25% alloy?
Answers
Answer:
6kg pure copper and 30 kg 10% copper was mixed to give 36kg of 25% alloy
Step-by-step explanation:
Here, we want to produce 36 kg of 25% alloy
Let the Pure copper be x kg while 10% alloy be y kg
Pure copper is simply 100% copper
Thus;
x + y = 36 •••••(i)
Then;
100% of x + 10% of y = 25% of 36
= x + 0.1y = 9 •••••• ii)
From i x = 36-y
from ii, x = 9-0.1y
Equate both x
36-y = 9-0.1y
36-9 = 0.1y + y
0.9y = 27
y = 27/0.9
y = 30
x = 36-y
x = 36-30
x = 6 kg
-5w = -80. solve for w.
Answers
Answer:
w=16
Step-by-step explanation:
-5w = - 80 Divide both sides of the equation by- 5 -5w ÷(-5)= - 80 ÷ ( - 5 ) any expression divided by itself equals 1 w = - 80 ÷ ( - 5 ) = w = 16 also you should use photomath that's what I use
Answer:
w=16
Step-by-step explanation: -80/-5=16
Find the equation that shows the relationship between the number of pens, p, and the
total cost, c.
5
10
15
20
Number of Pens (p)
$3.95
$7.90
$11.85
$15.80
Cost (c)
Answers
Answer: c= 0.79p
Step-by-step explanation:
Divide each cost by the number of pens it have to find the constant change value.
3.95/5 = 0.79
7.90/10= 0 .79
11.85/15 = 0.79
15.80 / 20 = 0.79
Since the constant change is 0.79 which means that for each pen it will cost you $0.79, then the equation will be c= $0.79p where c is the cost and p is the number of pens.
BRAINLIEST FOR WHO ANSWERS
(−2x ^2 −4x+2) - (−6x+2)
The answer is not -2x+2x
Answers
Answer:
-2x^2-2x
Step-by-step e-xplanation:
−2x2−4x+2−(−6x+2)
Distribute the Negative Sign:
=−2x2−4x+2+−1(−6x+2)
=−2x2+−4x+2+−1(−6x)+(−1)(2)
=−2x2+−4x+2+6x+−2
Combine Like Terms:
=−2x2+−4x+2+6x+−2
=(−2x2)+(−4x+6x)+(2+−2)
=−2x2+2x
Please find the value of this one expression
Answers
Answer:
Solving the expression [tex]\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-\frac{18}{\sqrt{81} } -2)[/tex] we get 6
The answer is 6.
Step-by-step explanation:
We need to find value of expression: [tex]\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-\frac{18}{\sqrt{81} } -2)[/tex]
We know that [tex]\sqrt{81}=9[/tex]
Our expression will become
[tex]\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-\frac{18}{\sqrt{81} } -2)\\=\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-\frac{18}{9 } -2)\\=\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-2 -2)\\=\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-4)\\=\frac{2}{\sqrt[6]{8} }.\sqrt{2}+4[/tex]
We can write [tex]\sqrt[6]{8}=(2^3)^{\frac{1}{6}}=(2)^{\frac{3}{6}}=2^\frac{1}{2}=\sqrt{2} \\[/tex]
Now, replacing [tex]\sqrt[6]{8}=\sqrt{2}[/tex]
[tex]=\frac{2}{\sqrt[6]{8} }.\sqrt{2}+4\\=\frac{2}{\sqrt{2} }.\sqrt{2}+4\\=2+4\\=6[/tex]
So, solving the expression [tex]\frac{2}{\sqrt[6]{8} }.\sqrt{2}-(-\frac{18}{\sqrt{81} } -2)[/tex] we get 6
A formal proof uses all of the following components except what?
A.) theorems
B.) a set of examples
C.) geometry rules
D.) algebra rules
Answers
Answer:
The answer is B.
Lines AB and MN intersect at P.
N
A
(3x + 24)
(9x - 54)
P
B
M
What is the value of x?
Answers
Answer:
x = 13
Step-by-step explanation:
To solve for x, we set equations (9x - 54) and (3x + 24) equal to each other because the angles are equal
(9x - 54) = (3x + 24); add 54 to both sides
9x = 3x + 78; subtract 3x from both sides
6x = 78; now divide by 6
x = 13
The ratio on a key board of number keys to letter keys is 3:15. If a manufacturer produced 156 letter keys,then how many keys would need to be produced?
Answers
Answer: Approximately 31 number keys.
Step-by-step explanation: Ratio is a comparison between two values.
Ratio for number keys to letter keys is [tex]\frac{3}{15}[/tex], which means each 3 group of number keys is equivalent to 15 letter keys.
The producer will need
[tex]\frac{3}{15} =\frac{x}{156}[/tex]
[tex]x=\frac{3.156}{15}[/tex]
x = 31
The manufacturer will need to be produced 31 keys.
5% of 60 is what number?
a . 6
b . 5
c . 3
d . 60
Answers
Answer: The answer is 3
Step-by-step explanation:
This weekend the hardware store is having a blowout sale, where everything is discounted 40%. A weed eater originally sells for $145. How much will the weed eater cost during the blowout sale?
Answers
Answer:
58
Step-by-step explanation:
Answer:
$58
Step-by-step explanation:
I jus need the focus and directrix please.
Answers
Answer:
the vertex is (3,-2), the focus is (3,-7/4), and the directrix is y=-9/4
Step-by-step explanation:
in order to find the vertex, you convert the equation into vertex form so
y=(x-3)^2-2
With this, we can find the vertex which is at (3,-2)
In order to find the focus and diretrix, we need to find the value of p
We do this by creating the equation:
x^2=4py
in this case, (x-3)^2=4p(y+2) so 4p must equal 1 so p is 1/4
In order to find the focus, we add the value of p to the y coordinate of the vertex so the focus is (3,-2+1/4) which is (3,-7/4)
In order to find the directrix, we subtract the value of p to the y coordinate of the vertex so the directrix passes through the point (3,-2-1/4) which is (3,-9/4)
When we graph this parabola, we can tell that the directrix will be in the form of y = a and since this line passes through (3,-9/4) the directrix is y=-9/4
I hope you understand this explanation.
please help (picture provided shows question)
Answers
Answer:
They need to sell 3 tees, and incurred $60.
Step-by-step explanation:
What is the revenue equation? R = 20x, where x is the # of tees sold.
What is the cost equation? C = 5x + 45, where x is the # of tees sold.
Set those two equations equal, we get:
20x = 5x + 45, 15x = 45, x = 3.
3*5 + 45 = 60.
What is the value of this expression below when z=8 and w=3
9z-8w
Answers
Answer:
Step-by-step explanation:
Putting values in the equation
9z - 8w
9(8) - 8(3)
72 - 24
= 48
Answer:
9z-8w=48
Step-by-step explanation:
9x8-8x3
72-24=48
PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!!
Answers
Answer:
the picture is really blurry i cant see anything
Step-by-step explanation:
Determine the correlation:
How much you study vs. The grade you get on your test
A- positive correlation
B- negative correlation
C- no correlation
Answers
teachers are just like that sometimes man
they are saying that the more you study the higher your grade is, so positive correlation
who's good at math? i need help ASAP. *don't mind the red numbers, i think they're wrong*
Answers
Answer:
Seems like someone answered them, because the red writing is right, but here's the answers with explanation
Step-by-step explanation:
The vertex is the point at which the graph changes direction as we go from left to right. Maximum means the graph is changing direction and going down, so the f(x)-values start becoming smaller. So the graph reached its maximum/highest point and dropped.Minimum means the graph is changing direction and going up, so the f(x)-values start becoming bigger. So the graph reached its minimum/lowest point and started risingNow the answers:Vertex is (-1,0) because if you look at the numbers for f(x) they go, 4 then 1, then 0, but instead of getting smaller they start getting bigger, so it changes as this point and goes up so minimumvertex is (3,44), when you look at f(x) it goes 143, then 88, then 55, then 44, then it changes and starts getting bigger so minimumvertex is (-4,-5) but this one is different from the first two. f(x) starts with -17 then -9, then -5, then it sort of stops and stays there, then -5 then drops and gets smaller. So it changes at x=-4 so use this point, immediately before the change and it is maximumVertex is (21,500) because f(x) was getting bigger but then it changes and goes down and becomes smaller, so it is maximumvertex is (1.5,6) the point immediately before the change, and we see f(x) was getting smaller going down, but it changes and goes up and gets bigger so it is minimumvertex is (0.5,5) because it was getting big then changed and started getting smaller so maximumafter 3 hours ernie had traveled at 195 miles if he travels at a constant speed how far will he have traveled after 5 hours
Answers
Answer:
325
Step-by-step explanation:
195/3=65
5*65=325
I Tried 140 And 80. Those answer were incorrect. Right Answer gets 5 stars and a branliest. THANK YOU SO MUCH!!
Answers
Answer:
a 60
Step-by-step explanation:
Answer:
The Answer Is 60 I Had This Test Already.
Step-by-step explanation:
From Mickey Grace to Everyone:
Grace is 4 years older than Elena. If Grace is 9
years old, how old is Elena? Grace is
Answers
Answer:5
Step-by-step explanation:
Place the steps in the correct order
Answers
Answer:
1. Add x on both sides.
2. Divide both sides by 4.
3. Add 20 to both sides.
4. Divide both sides by 3.
Brainliest Appreciated! Hope I helped!
Help please I’m so bad at these
Answers
Answer:
23/24
Step-by-step explanation:
I used my calculator, but find the greatest common factor which is 24 and convert and multiply to get 23/24.
Find the inverse of the function y = x2 – 12.
Answers
Answer:
y = √ x+12(square root of x+12)
Step-by-step explanation:
x = y^2 - 12
x+12 = y^2
y^2 = x+12
y = √ x+12
Answer:
Question 1. Find the inverse of the function y = x2 – 12.
B. y=+/- sqrt x+12 end sqrt
Question2. Find the inverse of the function y=2x2+2
D. y= +/- sqrt 1/2x-1 end sqrt
Which could be the length of DB
Answers
Answer:
5
Step-by-step explanation:
If AD was 6, and D isn't in the middle of the triangle, then DE must be a number lower than 6.
Which the only number like this is 5.
Hope this Helps!
:D
Find the values of x and y!!(help please)
Answers
X = 24 degrees
4 friends are sharing a new pack of pencils. if there are 12 pencils in each pack how many will each friend get?
(I am lazy to answer this by myself so please help me)
Answers
Answer:
3
Step-by-step explanation:
3 times 4 equals 12
hope I got it right
Step-by-step explanation:
they would each get 4 pencils
Can someone help me with this?
Answers
Answer:
Vertical
Step-by-step explanation:
They make a bow tie, so to speak.