Answec
Step-by-step explanation:
simplify 4•3^2-3+5•2
Answer:
21316
Step-by-step explanation:
sorry if im wrong i tried
Answer: 43
Step-by-step explanation:
Use PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.
4 × 3² - 3 + 5 × 2
Exponents
4 × 9 - 3 + 5 × 2
Multiplication
36 - 3 + 10
Addition
36 + 7
43
Hope this helped!
What is equivalent fractions for 12/18?
Answer:
6/9; 4/6; 2/3
Step-by-step explanation:
You can divide the top and bottom by 2:
6/9
Or by 3:
4/6
Or by 6:
2/3
Answer:
2/3
Step-by-step explanation:
Divide numerator and denominator by 6
The perimeter of the rectangle below is 42 inches. Find the value of X.
Please help
Answer:
x = 4
Step-by-step explanation:
42 = 5x + 5x + ( x - 3 ) + ( x - 3 )
42 = 12x - 6
48 = 12x
x = 4
Perimeter is the length around the rectangle (or any other shape). For rectangles, it's found by adding the side lengths. In this case, it required algebra to solve for x.
Answer:
x = 4
Step-by-step explanation:
The opposite sides of a rectangle are congruent.
The perimeter is the sum of the 4 sides, thus
2(5x) + 2(x - 3) = 42 ← distribute parenthesis and simplify left side
10x + 2x - 6 = 42
12x - 6 = 42 ( add 6 to both sides )
12x = 48 ( divide both sides by 12 )
x = 4
What is the area of the real object that the scale drawing models?
Scale factor: 1:5
Area =
12 square cm
Scale drawing
Object
Answer:
60
Step-by-step explanation:
12 x 5 = 60
The area of the real object that the scale drawing models will be 300 square cm. Thus, the correct answer is option (A).
Given:
For Object
Scale factor: 1:5
For Scale drawing
Area = 12 square cm
The scale factor of 1:5 means that every unit on the scale drawing represents 5 units in the real object.
Since area is a two-dimensional measurement, the scale factor for area will be the square of the linear scale factor.
Here, the linear scale factor is 1:5, which means that each unit on the scale drawing represents 5 units in the real object.
Therefore, the area scale factor will be (1:5)² = 1:25.
If the area of the scale drawing is 12 square cm, then the area of the real object that the scale drawing models will be 12 × 25 = 300 square cm.
Therefore, the correct answer is:
A. 300 square cm.
Learn more about the scale images here:
brainly.com/question/13194929
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10-2(4+3x)
Someone help me pleas
find what x is...
0.5x-8=12
Answer:
x = 40
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
So first you would do 12+8=20
Then you would do 20÷0.5=40
Now you want to check your answer
0.5x40=20 and 20-8=12
So x=40
Step-by-step explanation:
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help
Answer:
the answer is B
Step-by-step explanation:
Yoko needs 300 copies of her resume printed. Dakota Printing charges 19.50$ for the first 200 copies and 9$ for every 100 additional copies. If the number of sets of 100 resumes is represented by r, express the cost of the resumes c(r) algebraically as a piecewise function How much will 300 copies cost including a sales tax of 4 1/2%? Round to the nearest cent.
Answer:
29.79 should be the answer
Step-by-step explanation:
200 copies 19.50 + 9.00 for 100 copies = 28.50 + 4% = 29.79
The cost of the resumes c(r) algebraically as a piecewise function will be: c(r)=$19.5 if r < 2 and =$29.78 is the cost of 300 copies including a sales tax of 4 1/2
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
Dakota Printing charges 19.50$ for the first 200 copies and 9$ for every 100 additional copies.
Let r be the number of sets of 100 resumes.
c(r)=$19.5 when r represent an integer and is less than 2
c(r)=$19.5+(r-2) ($9) (1+0.045)
c(r)=$19.5+(r-2) ($9) (1.045) when r represent an integer and is greater than 2
the cost of the resumes c(r) algebraically as a piecewise function will be: c(r)=$19.5 if r < 2
c(r)=$19.5+(r-2) ($9) (1.045) if r ≥ 2
Cost of 300 copies=($19.5+$9)+($19.5+$9) (0.045)
=$28.5+$28.5(0.045)
=$28.50+$1.28
=$29.78
Hence, the cost of the resumes c(r) algebraically as a piecewise function will be: c(r)=$19.5 if r < 2 and =$29.78 is the cost of 300 copies including a sales tax of 4 1/2
To learn more on Equation:
https://brainly.com/question/10413253
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can u please help me
Answer:
A=50.24
Step-by-step explanation:
Using the formula, A= πr^2
4^2 = 16
16 * 3.14 = 50.24
Answer:
A=50.24
Step-by-step explanation:
Math question help for points
6+5(9/3)²
Answer:
51 mate
Step-by-step explanation:
Answer:
51 srry if im wrong
Step-by-step explanation:
Help! Find the value of X. Thank you. (:
Answer:
x = 4
Step-by-step explanation:
The smaller triangle is an equilateral triangle, so all sides and angles are the same. We know that one side is labeled as 5, so all sides of that little triangle are 5.
The bigger triangle is an isosceles triangle because those two angles are marked as congruent. So, line JM and line KM are congruent as well.
The little triangle and the big triangle share side KM, so KM is equal to 5.
If JM is equal to KM and KM is equal to 5, JM is also five. That means:
x + 1 = 5
Subtract 1 from each side.
x = 4
And there we go.
Which expression is equal to (look at pic)
Answer: i think C sorry if i get it wrong :)
Step-by-step explanation:
70 students at a school were asked to complete a survey about the location of their next field trip.
28 students chose the zoo and 33 students chose the amusement park.
The remaining students did not complete the survey.
here ya go
Answer: 28 + 33 = 61
so
28/61 x100
=45.9% (1dp)
Step-by-step explanation:
i am terrible at math, so i might need some help with this
Answer:
A=143
Step-by-step explanation:
It is addition and subtraction here, so you will add the money into the bank account. If you also need B and C, it is -86 for B and 86 for C respectively
A summer biathalon-style race requires running a certain distance, and then biking a distance 2 miles more than the length of the run. One athlete has a running speed of 6 miles per hour, and a biking speed of 10 miles per hour, and completes the event in 90 minutes. How long, in miles, is each segment of the race
Answer:
The run is 4.875 miles long, while, the bike is 6.875 miles long.
Step-by-step explanation:
Let d = running distance and d' = biking distance.
Given that d' = d + 2 and v = running speed = 6 mph and v' = biking speed = 10 mph.
Since time, t = distance/speed, running time, t = running distance/running speed = d/6 and biking time, t' = biking distance/biking time = d'/10 = (d + 2)/10.
Since the total time, t" = 90 minutes = 1.5 hours,
t + t' = t"
So, d/6 + (d + 2)/10 = 1.5
multiplying through by the L.C.M, 30, we have
30 × d/6 + 30 ×(d + 2)/10 = 30 × 1.5
5d + 3(d + 2) = 45
expanding the brackets, we have
5d + 3d + 6 = 45
collecting like terms, we have
8d = 45 - 6
8d = 39
d = 39/8
d = 4.875 miles
d' = d + 2 = 4.875 + 2 = 6.875 miles
So, the run is 4.875 miles long, while, the bike is 6.875 miles long.
Write down in terms of n,
1
Isaac earns $19 in 2 hours.
2
Answer:
Isaac earns 9.50 dollars per hour
Hope this helps :)
Which graph represents the function below?
The model represents the equation 3x – 2 < 4. What is the solution for this inequality? x < 2 x < 6 x < -2 x < -3
Answer:
the answer is x<2
Step-by-step explanation:
lol
Answer:
x<2
Step-by-step explanation:
3x-2+2<4-+2
3/3x<6/3
x<2
ur welcome ;)
can u tell me the answers? please quick
Answer:
abcd not sure about e but e is irrational
Step-by-step explanation:
rational numbers are any finite number or decimal that doesn't terminate
a b c d are rational e is not
What is the coefficient in the expression 15y + 5
Answer:
15
Step-by-step explanation:
If helpful, please give 5 star, thanks, and brainliest!
can someone help me with this
Find the GCF of 27 and 45 using lists of factors
Answer:
I think this answer
1.Factors of 27 are {1,3,9,27)
2.Factors of 45 are {1,3,5,9,15,45)
3.Common factors are {1,3,9
the biggest common factor number is the gcf number. So the greatest commen factor 27&45 is 9
Could y’all help with the answer?
Answer:
8
Step-by-step explanation:
5 x 6 = 30
6 x 6 = 36
8 x 6 = 48
Answer:
8
Step-by-step explanation:
The answer is 8 because the scale factor is 6 so if you divide the side that is corresponding to x (in this case 48) you would divide it by 6 because 6 is the scale factor. Hopefully I make sense...
Hope this helps :D
HELPP MEE PLZZZ
Subtract. y-11/4y - 5y/6y^2?
Answer:B
Step-by-step explanation:
Plz answer 3.2x+0.2^2-5=0
Answer:
Hope it works for u
Step-by-step explanation:
As given, 3.2x+0.2^2-5=0 we have to find value of x
3.2x+0.04-5=0
3.2x-4.96=0
3.2x=4.96
x=4.96/3.2
x=1.55 Ans....
Answer:
x=31/20 (as a fraction)
Step-by-step explanation:
4x + 8 = 7x - 13 guys I’ve been trying to solve this question for the past 50 minutes plz help.
Answer :
If you are asking what is x, it is
x=7
Step-by-step explanation:
Answer:
[tex]4x + 8 = 7x - 13 \\ 4x - 7x = - 13 - 8 \\ - 3x = - 21 \\ x = 7[/tex]
Todd draws a diagram using for identical right triangles to form a square are shown which best describes how to use the areas of shaded triangles to begin a proof of the Pythagorean theorem
Answer: The side length of the white square is b-a, so the combined area of the four right triangles is c^2-(b-a)^2.
Step-by-step explanation: iready
Answer:C^2-(b-a)^2=4(1/2ab)
Step-by-step explanation:
How many solutions are there for the system shown below?
x2 + y2 = 25
x-y2= -5
A. 4
B. 1
C. 2
D. 3
Answer:
i think maybe A hope this helps
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
A
P
E
X
State if the number
is an integer, rational, irrational, or not a real number,
irrational
not a real number
rational
integer
Answer:
√43/8 can not be a rational number. Because the numerator of the fraction is not an integer.
Therefore, option C i.e. irrational is correct.
Step-by-step explanation:
What is a rational number?
We know that a rational is a number that can be expressed in the form of a fraction p/q of two integers p and q.
Where
p is a numerator q is a non-zero denominatorGiven the number
√43/8
here
The denominator 8 is an integer but the nominator √43 is not an integer.So,
√43/8 can not be a rational number. Because the numerator of the fraction is not an integer.
Therefore, option C i.e. irrational is correct.
find the buying price when 5% sales tax is added on the purchase of 5kg of wheat at 20 per kg
Answer:
$300
Step-by-step explanation:
5% of x + 5 kg = 20
0.05 * x + 5 = 20
0.05x + 5 = 20
0.05x = 20 - 5
0.05x = 15
x = 15 / 0.05
x = $300