Answer: 25
Step-by-step explanation:
Given
The student earned 80% on a math test
The student answered 20 questions
Suppose x is the total no of questions
So, we can write
[tex]\Rightarrow \dfrac{20}{x}\times 100=80\%\\\Rightarrow \dfrac{20}{x}=0.8\\\\\Rightarrow \dfrac{20}{0.8}=x\\\\\Rightarrow x=25[/tex]
So, there are 25 questions in total
What is the area?
-QUICKKKKKK
Answer:
34 sq cm
Step-by-step explanation:
4x4 = 16
9x2 = 18
16+18= 34
25 increased to 32..........
If x = 3 units, y = 6 units, and h = 5 units, find the area of the parallelogram shown above using decomposition.
Answer:
12 square units
Step-by-step explanation:
Hope it helps
Solve please. Correctly
4x + 2 = 2 + 4x
Answer:
x = anything for both sides as long as they're the same number
Step-by-step explanation:
the answer is 56 good luck
Please answer!!!!!!!
Answer:
7.2 inches
Step-by-step explanation:
First, we find the length of the legs, which are the sides that are parallel to the x- and y-axis.
The leg parallel to the x-axis is 6 inches long.
The leg parallel to the y-axis is 4 inches long.
After finding the length of both legs, we can use the Pythagorean Theorem to find the length of the hypotenuse: a² + b² = c²
a and b being the legs, and c being the hypotenuse
6² + 4² = c²
36 + 16 = c²
52 = c²
√52 = c
c ≈ 7.2 inches
Evaluate the expression 2bc2 for b = 1.5 and c = 5
Answer:15
Step-by-step explanation:
The value of the given expression 2bc² for b = 1.5 and c = 5 will be 75.
What is an expression?A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
As per the given expression,2bc²
Put b = 1.5 and c = 5,
2(1.5)(5)² = 3 x 25 = 75
Hence "The value of the given expression 2bc² for b = 1.5 and c = 5 will be 75".
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In The Figure Below, M/A=41 And M/B= (2x+3)
Answer:
Step-by-step explanation:
rewrite the question in slope-intercept form:
2x-4y-12= -13-2x
Answer:
y= x + 1/4
Step-by-step explanation:
did the math and that should be your answer
Find the value of if the perimeter of the rectangle is 30inches. The length is 2x + 3and the width is x
Answer:
The perimeter of a rectangle is 30 meters. The length of the rectangles is 3 meters more than twice the width. Find the dimensions of the rectangle.
Step-by-step explanation:
Equation for Perimeter of a rectangle: Perimeter = 2W + 2L
Defining the variables, let
Width = x
Length = 2x+3 (3 more than twice the width)
Plugging everything into the equation
30= 2(x) + 2(2x+3) using the distributive property,
30=2x+4x+6 combining like terms
30=6x+6 subtracting 6 from both sides,
24=6x divide both sides by 6
4=x This means that the width is 4 m
To get the length, use the expression L=2x+3 and plug in x = 4 that was already solved for
L=2(4)+3
L=8+3 = 11 m
So the dimensions of the rectangle are width is 4 m and length is 11 m
3x-2y=17
2x-2y=10
What’s the answer?
Over a three-week period, Abram spent 15
hours practicing the piano. If he keeps the
same schedule, how many hours will he spend
practicing in the next 4 weeks?
Answer:
20 hours
Step-by-step explanation:
First off, if we divide the number of hours he has played by the number of weeks 15/3 =
It would be an average of 5 hours per week
Therefore, in the next 4 weeks we would practice for 20 more hours.
i hope this helps you<33
have a nice day or night
Simplify the following equation ig
6÷2(1+2)
Answer:
your answer will be 9
Step-by-step explanation:
maybe lol
f(x)=2x and g(x)=x2+3, find (g ∘ f)(−3)????
Answer:
18
Step-by-step explanation:
f(x)=2x and g(x)=x2+3, find (g ∘ f)(−3)
f(x)= 2(-3)= -6
g(x)= (-3)(2) +3= -6+3= -3
(g ∘ f) = -6 x -3= 18
Find the equivalent of 2x^2 + (4x -6x^2) + 9 - (6x + 3)
A. -4x^2 - 2x +12
B.-4x^2 -2x + 6
C.-10x +6
D. 18x +12
Answer:
B.-4x^2-2x+6.
Step-by-step explanation:
=2x^2+4x-6x^2+9-6x-3.
=2x^2-6x^2+4x-6x+9-3.
=-4x^2-2x+6.
The volume of this rectangular prism is 59.52 cubic feet. What is the value of p?
4.8 ft
3.1 ft
р
= how many feet?
Answer: 4ft
Step-by-step explanation:
A 9 foot tall tree casts a 5 foot shadow . At the same time a house casts a 28 foot shadow. How tall is the house?
Answer:
33
Step-by-step explanation:
it is 33 if you get it wrong than dab
Kimberley plans to purchase a new laptop computer that costs $1,313.00. She has one coupon for 15% off and another coupon for $200 off. Which coupon should she use to get the bigger discount?
Answer:
Coupon second discount = 200 off
Step-by-step explanation:
Given:
Price of laptop = $1,313
Coupon first discount = 15% off
Coupon second discount = 200 off
Find:
Choose coupon get the bigger discount
Computation:
Coupon first discount = 15% off
Coupon first discount = 1,313 x 15%
Coupon first discount = $196.95
So,
Coupon second, for get the bigger discount
yokoreceived a 70 gift card for a coffee store. She used it in buying some coffee that cost 8.04 per pound. After buying the coffee, she had 45.88 left on her card. How many pounds of coffee did she buy?
Answer:
Since she started with $80 and ended with with $35,24, we can find the total amount she spent by subtracting these amounts:
$80 - $35.24 = $44.76
This means that she spent $44.76 on coffee. If each pound cost $7.46, we can divide $44.76 by $7.46 to see how many pounds she bought (ignoring tax):
44.76 / 7.46 = 6 pounds of coffee purchased
I hope it help you
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In your math notebook: Give an approximation of the width of the river, support your answer with reasoning from the measurements given. Set up an equation and solve for the width of the Klamath River. Enter the width of the river.
TwT plz help
Answer:
um i cant read it and why do you use cringet emojis like TwT
Step-by-step explanation:
Answer:
ehbsbshshwhajwj
Step-by-step explanation:
whhwbwbsbsbbsh
I need h3lpppppppppppppppppppppppppppppppppp
The radius of a cylindrical water tank is 4.5 ft, and its height is 8 ft. What is the volume of the tank?
Use the value 3.14 for it, and round your answer to the nearest whole number.
Be sure to include the correct unit in your answer.
15
Evaluate
a-4 when a=7
The value is:
Answer:
3 is the answer to this problem
Answer:
Since we know a=4 all we have to do is plug 7 in for a and get the equation
7-4
Answer: 3
Step-by-step explanation:
A sphere has a radius 2.7 centimeters, What is its volume to the nearest cubic centimeter
Answer:
82.447957600811
Step-by-step explanation:
guys pls help me with this
Answer:
3.since two base side are equal
4.sum of interior angle of the triangle is 180
9.base angle of isosceles triangle
16.the inscribed angle from the diameter is 90°
21.being CAE=90°
7. MGSE7.6.1: Two stage floors are in the shape of isosceles trapezoids. The small stage floor
in the drama room is geometrically similar to the large stage floor in the auditorium, as shown
below.
81
24 ft.
12
xit
Part A: Determine the scale factor.
Part B: Solve for the unknown variable of the larger floor.
Answer:
show stage and back stage
Step-by-step explanation:
The scale factor is 3 and the value of the unknown variable of the larger floor is 36 ft and this can be determined by using the given data.
Given :
Two-stage floors are in the shape of isosceles trapezoids. The small stage floor in the drama room is geometrically similar to the large stage floor in the auditorium.a) Let the scale factor be 'y'. So, the value of 'y' can be calculated as:
[tex]\begin{aligned}\\24 &= y \times 8\\y &= 3\\\end{aligned}[/tex]
So, the scale factor is 3.
b) The value of the unknown variable of the larger floor is calculated as:
[tex]\begin{aligned} \\12\times y &= x\\12\times 3& = x\\x&= 36\\\end{aligned}[/tex]
So, the value of the unknown variable of the larger floor is 36 ft.
For more information, refer to the link given below:
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Translate the sentence into an equation.
Seven times the sum of a number and 5 equals 2.
Answer: 7(x + 5) = 2
Step-by-step explanation:
Use the variable x to represent the number
7(x +5) = 2
Answer:
7(x+5)=2 x= -33/7
Step-by-step explanation:
please help and explain with words please
find the roots of the polynomial
8t^2-2t-3
Answer:
For a polynomial of the form ax²+bx+c, rewrite the middle term as a sum of two terms whose product is a⋅c = 8⋅ −3=−24 and whose sum is b=−2.
8t²+4t−6t−3
Factor out the greatest common factor from each group.
4t(2t+1)−3(2t+1)
Factor the polynomial by factoring out the greatest common factor, 2t+1.
(2t+1)(4t−3)
Step-by-step explanation:
Need help please get done fast.
Answer:
47
Step-by-step explanation:
the sum of all the interior angles in a triangle is 180.
25+108=133
180-133=47
This table gives the value of an investment for the first 5 years after the initial investment was made. The data can be modeled using an exponential function.
Years 1 2 3 4 5
Investment value $1,050 $1,103 $1,160 $1,215 $1,280
Based on the data, which amount is closest to the value of the investment 10 years after the initial investment?
$1,350
$1,475
$1,625
$1,800
Answer:
C.) $1,625
Step-by-step explanation:
Going by the numbers on the graph, you can immediately tell $1,350 and $1,475 are way too low, so cancel those out and you get $1,625 and $1,800
From here, you can see that in 5 years it hasn't gone up by far, so it won't be 1,800$ by 10 years end, making the answer clear
You can just double 280 and get 560, which the closest answer is 1,625
It's really just a high-low estimate question, 2 answers are too high or low, one is close but not really, and one is just right- or inbetween
$1,625
The amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.
What is an exponential function?It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent [tex]\rm y = a^x[/tex]
where a is a constant and a>1
Let's suppose the exponential function that model the problem is:
[tex]\rm y = ae^k^x[/tex]
Plug x = 1 and y = 1050
[tex]\rm 1050 = ae^k[/tex] ...(1)
Plug x = 2 and y = 1103
[tex]\rm 1103 = ae^2^k[/tex] ...(2)
Divide equation (2) with (1)
[tex]\rm e^k = 1.0504[/tex]
Taking ln to get the value of k
k = 0.0491
a = 999.69
The exponential function:
[tex]\rm y = (999.6902)e^{0.0491}^x[/tex]
Plug x = 10 years in the above function:
y = $1633.44
Which is close to $1625
Thus, the amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.
Learn more about the exponential function here:
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both questions are on the picture
Answer:
the first one is m, the second one is 5
Answer:
m and 5
Step-by-step explanation:
variable=the letter
m
coefficient= the number before the letter
5