Answer:
10 calculators
all you have to do is divide 900 by 90
in order to get the answer
when you divide by 90 you get the answer of 10
Step-by-step explanation:
[tex]\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ [/tex]
[tex]\rule{70mm}{2.2pt}[/tex]
[tex] \large \purple{ \rm{Given→}}[/tex]
Money to buy new calculators →$900Cost of each calculator → $90[tex]\rule{70mm}{2.2pt}[/tex]
[tex] \large \purple{ \rm{To \: find→}}[/tex]
how many calculators math teacher buy ?[tex]\rule{70mm}{2.2pt}[/tex]
[tex] \large \purple{ \rm{Let's \: solve→}}[/tex]
[tex]\ \ \bold{calculators \: teacher \: can \: buy \: } \\ \\ \bold{= 900 \div 90} \\ \\ \bold{ = \frac{900}{90} } \\ \\ \ \bold{ = \cancel \frac{900}{90} } \\ \\ \bold{ = 10 \:calculators}[/tex]
[tex]\purple{\rule{15mm}{2.9pt}} \red{\rule18mm{2.5pt}} \orange{ \rule18mm{2.5pt}}[/tex]
[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
Select two ratios that are equivalent to 27: 9.
Choose 2 answers:
Answer:
1. 9:3
2. 3:1
Step-by-step explanation:
Hope it really helps you
solve this equation by using the look inside method to rewrite the problem
-81 = 3(5 - 4r)
Please explain how to solve this problem
The manager of a store that specializes in selling tea decides to experiment with a new blend. She will mix some Earl Grey tea that sells for $6 per pound with some Orange Pekoe tea that sells for $4 per pound to get 400 pounds of the new blend. The selling price of the new blend is to be $4.50 per pound, and there is to be no difference in revenue from selling the new blend versus selling the other types. How many pounds of the Earl Grey tea and Orange Pekoe tea are required?
The blend should have _ pounds of Earl Grey and _ pounds of Orange Pekoe.
9514 1404 393
Answer:
100 pounds Earl Grey300 pounds Orange PekoeStep-by-step explanation:
Let x represent the number of pounds of Earl Gray tea in the mix. Then the total cost of the mix is ...
6x +4(400-x)=4.50(400)
2x +1600 = 1800 . . . . . . . simplify
2x = 200 . . . . . . . . . . . subtract 1600
x = 100 . . . . . . . . . . . divide by 2. Pounds of Earl Grey
(400 -x) = 300 . . . . . Pounds of Orange Pekoe
The blend should have 100 pounds of Earl Grey and 300 pounds of Orange Pekoe.
_____
Additional comment
It is easy to show that the relationship between the quantities of high-cost (H) and low-cost (L) items in the mix (M) is ...
fraction of mix that is H is (M -L)/(H -L)
Here, we have H=6, L=4, M=4.5, so the fraction of the mix that is Earl Grey is ...
(4.5 -4)/(6 -4) = 0.5/2 = 0.25
There are 400 pounds of mix, so 0.25(400) = 100 pounds is Earl Grey.
The solution above is essentially 2-step, so using this relation doesn't necessarily save any steps. It just makes it possible to solve the problem in your head.
please help!!!!!!!!!
Answer:
110
Step-by-step explanation:
First, find the perimeter of 1 fence.
55/2 or [tex]27\frac{1}{2}[/tex]
Multiply by the number of fences (4)
110
I hope this helps!
Find(f−g)(x) f(x)=x2−6xandg(x)=−2x+3
A x2−4x+3
B x2+4x−3
C x2−4x−3
D x2+4x+3
Answer:
option C is the answer......
if (a^-1+b^-1)(a+b)^-1=a^mb^n.prove that a^(m-n)=1.
Answer:
46666
Step-by-step explanation:
K = [ 14 -13 0 3 8 -1 -10 -2 5 ] find the determinant of K
I suppose K is the matrix
[tex]K = \begin{bmatrix}14 & -13 & 0 \\ 3 & 8 & -1 \\ -10 & -2 & 5\end{bmatrix}[/tex]
To compute det(K), you can use a simple cofactor expansion along the first row:
[tex]\det(K) = 14\times\det\begin{bmatrix}8 & -1 \\-2 & 5\end{bmatrix} - (-13)\times\det\begin{bmatrix}3 & -1 \\ -10 & 5\end{bmatrix} + 0\times\det\begin{bmatrix}3 & 8 \\ -10 & -2\end{bmatrix} \\\\ \det(K) = 14\times(8\times5-(-1)\times(-2)) + 13\times(3\times5-(-1)\times(-10)) + 0 \\\\ \det(K) = 14\times38 + 13\times5 = \boxed{597}[/tex]
evaluate the expression -(5/7)^0
Answer:
1
Step-by-step explanation:
Find the coordinates of the vertices of each figure after the given transformation.
dilation of 2.5 about the origin
Q(-1,-1), R(-2, 1), S(0, 2), T(2,0)
Step-by-step explanation:
Q(-1,-1), R(-2, 1), S(0, 2), T(2,0)
after dilation, all the numbers should be multiplied by 2.5.
so, the correct answer is d.
Q'(-2.5 ,-2.5), R'(-5, 2.5), S'(0, 5), T'(5,0)
.Si un juguete vale s/ 95 me lo rebajan en s/ 27.¿Cuanto me costara?
Answer:
Vale 95.
Me rebajan 27.
95-27=68
Me costará 68.
Step-by-step explanation:
A rectangle has a height of 3 cm and width of 5cm. A proportional rectangle has a height of 12cm. What would be the width?
The ratio will be same
Let width be x[tex]\\ \sf\longmapsto \dfrac{3}{5}=\dfrac{12}{x}[/tex]
[tex]\\ \sf\longmapsto 3x=5(12)[/tex]
[tex]\\ \sf\longmapsto 3x=60[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{60}{3}[/tex]
[tex]\\ \sf\longmapsto x=20cm[/tex]
Answer:
width=20 cm
Step-by-step explanation:
h=3 cm
w=5 cm
proportional rectangle:
height=12
Here height has become 12 by multiplying 3 by 4.Therefore to find the width do the same thing.width=5*4
=20 cm
Does anyone know the answers to this? Please correctly answer
Answer:
Come and go (follow the pattern)
y = 0.20(0)+25
y = 0.20(30)+25
y = 0.20(60)+25
Interstate
y = 0.25(0)+15
y = 0.25(30)+15
y = 0.25(60)+15
Step-by-step explanation:
Find the area of this triangle. Round to the nearest tenth. 8m, 62°, 12m.
9514 1404 393
Answer:
42.4 m²
Step-by-step explanation:
The area can be found from the formula ...
Area = 1/2ab·sin(C)
Area = (1/2)(8 m)(12 m)sin(62°) ≈ 42.4 m²
Add the fractions and show me step by step on how to do it
7/24 + 4/6
23/24
7/24+4/6
Reduce the fraction by 6
7/24+2/3
Write all numerators above the least common denominator 24
7+16/24
Calculate
23/24
f(x)=2x
2
−x+9
\text{Find }f(4)
Find f(4)
Answer:
37
Step-by-step explanation:
f(x)=2x²−x+9
f(4)= 2(4)²-4+9
= 32-4+9
= 37
If two functions are inverses of each other, which 2 statements are true?
A The graph of an inverse of a function is a reflection of the function across the line y=x. B f(g(x)) = x and g(f(x)) = x
C The graph of an inverse of a function is a reflection of the function across the line y=0. D f(g(x)) =1 and g(f(x)) = 1
Answer:
A and B
Step-by-step explanation:
To be inverses, the inverse composite functions must equal x, since the input and output must be equal as how much you used as your input, which is x. B proves that. Also, the graph must reflect over y = x, which is the line that runs through the origin
Hello Brainly User please help me I will mark brainliest. Its really east math please help me
14 644 552 + 25 625 568
ayud estoy haciendo tarea :3
Answer:
14644552+25625568
=40270120
Step-by-step explanation:
is right answer
Write the given phrase as an algebraic expression. Use the variable x to represent each unknown number.
A number divided by eleven.
The answer is
(Answer quickly)
Answer:
x/11
Step-by-step explanation:
The prompt states to use x for each unknown number and then the question says A number divided by eleven so x divided by 11 = x/11
Fitness 19 charges a $44 sign up fee and $30 per month. LA fitness charges a $99 sign up and $25 per month. For what number of months is the cost the same?
Answer:
11 months
Step-by-step explanation:
Let x = months
y = total cost
Since Fitness 19 charges $30 a month, we multiply x by 30 like this: 30x
$44 is already added on the cost, so the Fitness 19 equation will look like this:
y = 30x + 44
Since LA Fitness charges $25 a month, multiply x by 25 like this: 25x
$99 is already added to the cost, so the LA Fitness equation will look like this:
y = 25x + 99
We need to find the point where they are both the same
30x + 44 = 25x + 99
First, move like terms to one side by subtracting 25x from both sides
30x + 44 = 25x + 99
- 25x - 25x
5x + 44 = 99
Then, subtract 44 from both sides
5x + 44 = 99
- 44 - 44
5x = 55
Finally, isolate the variable, x, by dividing both sides by the coefficient, 5
5x/5 = 55/5
x = 11
If you can make 12 cookies in 10 minutes, how long does it take to make 200 cookies
Answer:
12 cookies = 10minutes
200 cookies = x minutes
cross multiply
200×10 = 12x
2000= 12x
divide both sides by 12
X = 166.67 minutes
Step-by-step explanation:
that is 200 cookies will take 166.67 minutes
Answer:
[tex]12 \: cookies \: in \: 10 \: minut \: \\ 1 \: cookie \: in \: \frac{10}{12} = \frac{5}{6} \: minute \\ for \: 200 \: cookies = \frac{5}{6} \times 200 = 166.67 \: minute \\ thank \: you[/tex]
Please Help Please !!!!!!!
Answer:
I wish I could but I think its c
The opposite of 50 feet below sea level
Answer:
The opposite of 50 feet below sea level is 50 feet above the sea level.
Step-by-step explanation:
Below is negative 50 and above is positive 50 so its +50 the opposite of -50.
Finding Ordered Pairs from an Equation For the equation below, x is the input and y is the output. Choose the ordered pair that makes a true statement for the equation.
Answer: The answer is dddddd
Step-by-step explanation:
fbfgzgsdgrhzdfgreyty
Using BODMAS, I think but please help!!!
And show the steps
Answer:
= 12
Step-by-step explanation:
2 × {4 ÷ 2 -5}^2 -6
Solve the brackets first
2 × { 2 -5}^2 -6
2 ×{-3 }^2 -6
2 × 9 -6
18 -6
= 12
Step-by-step explanation:
[ 4 ÷ 2 - 5 ] ² - 6
(2 - 5)² - 6
(-3)² - 6
9 - 6
= 3
please help will give you brainly
Answer:
-1/2
Step-by-step explanation:
3(y+13 )=36
y+13=12
y=-1
(1/2) x -1 = -1/2
3(y + 13) = 36
Distribute the 3
3y + 39 = 36
Subtract 39 from both sides.
3y = -3
Divide both sides by 3
y = -1
1/2y = 1/2(-1) = -1/2
What is m∠A? help haha
Solve for the value of R
Answer:
13
Step-by-step explanation:
Since the angles form 180 degrees, it will be what the equation is equal to.
Make the equation:
8r + 5 + 5r + 6 = 180
Combine like terms:
8r + 5 + 5r + 6 = 180
13r + 5 + 6 = 180
13r + 11 = 180
Solve:
13r + 11 = 180
-11 -11
---------------------
13r = 169
------ ------
13 13
r = 13
Hope this helped.
maurice bought a car costing £8248. he paid a deposit of £1975 and 6 monthly instalments of £511. estimate the amount maurice still owes
Hello :D
£8000 - £2000 = £6000
6 x 500 = £3000
£6000 - £3000
How can powers of ten be used to find the product of 40 x 10^5?
Enter your answers In the boxes as whole numbers
You can add __ zeros to the end of the number 40 to get the product of __.
Answer:
You can add 6 zeros to the end of the number 40 to get the product of 40 x 10^5.
Step-by-step explanation:
You can add 6 zeros to the end of the number 40 to get the product of 40×10⁵.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
Operators which let do a basic mathematical calculation
+ Addition operation: Adds values on either side of the operator.
For example 12 + 2 = 14
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 12 -2 = 10
* Multiplication operation: Multiplies values on either side of the operator
For example 12*2 = 24
We have powers of ten that are used to determine the product of 40×10⁵.
So, the product 40×10⁵ can be obtained by appending 6 zeros to the end of the integer 40.
Hence, You can add 6 zeros to the end of the number 40 to get the product of 40×10⁵.
Learn more about the arithmetic operations here:
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