Answer:
Step-by-step explanation:
If Amy started with 28 dollars and bought 7 pens, then had 20.30 dollars, we can subtract to find the price of all 7 pens.
28-20.30=7.70 dollars
now to find the amount for EACH pen, we divide by 7
7.70/7=1.1
each pen costed Amy 1 dollar and 10 cents with tax
Answer:
$1.10
Step-by-step explanation:
$28-$20.30=$7.70
7.70 divided by 7= 1.10
so each pen must cost $1.10
Divide 1 km in the ratio 4:9:12
Answer:
40
Step-by-step explanation:
4+9+12=25
1/25×1000=40
10 x 23 x 4 divided by 54 x 4
Answer: roughly 4.2593
Step-by-step explanation:
920/216
put the equation through a calculator
approx. 4.2593
Answer:
17.037037
Step-by-step explanation:
A cone has a height of 8.4 centimeters and a base with a radius of 5.2 centimeters. What is the volume of the cone?(PLEASE SOLVE IT)
Answer:
237.86 cm3
Step-by-step explanation:
V=πr2h
3=π·5.22·8.4
3≈237.85626cm³
Evaluate.
f(x)=17-5x at x=a-3
The perimeter of a square is (8x + 6) centimeters. Part A: Write an expression for the length of a side of the square. Part B: The perimeter of the square is 72 centimeters. Write and solve an equation to find the value of x, then find the side length of the square.
Step-by-step explanation:
Part A:
(8x+6)/4= 2x+ 1.5
Part B:
72= (8x+6)
8x= 72-6
8x= 66
x= 8.25
the side length = 2x+1.5= 2(8.25)+1.5= 18 centimetres
REPOST, SOMEONE PLEASE HELP I DONT WANT TO KEEP WASTING ALL MY POINTS ON 1 QUESTION!!!!!!!
Answer:
:
1.
centre(h,k)=(-13,9)
radius (r)=6
we have
equation of the circle is
(x-h)²+(y-k)²=r²
(x+13)²+(y-9)²=6²
(x+13)²+(y-9)²=36you can write this equation too
x²+26x+169+y²-18y+81=36
x²+y²+26x-18y+169+81-36=0
x²+y²+26x-18y +214=0
is a required equation of the circle.
2.
centre(h,k)=(1,-1)
radius (r)=11
we have
equation of the circle is
(x-h)²+(y-k)²=r²
(x-1)²+(y+1)²=11²
(x-1)²+(y+1)²=121
you can write this equation too
x²-2x+1+y²+2y+1=121
x²+y²-2x+2y=121-2
x²+y²-2x+2y=119
is a required equation of the circle.
3.
centre (h,k)=(3,1)
radius (r)=4units.
we have
equation of the circle is
(x-h)²+(y-k)²=r²
(x-3)²+(y-1)²=4²
(x-3)²+(y-1)²=16 is a required equation.
4.
centre(h,k)=(4,-2)
radius (r)=3
we have
equation of the circle is
(x-h)²+(y-k)²=r²
(x-4)²+(y+2)²=3²
(x-4)²+(y+2)²=9
you can write this equation
anyone help if you can
Answer:
The answer is C
Step-by-step explanation:
HOPE it helps!!:))))
In a right triangle, the length of one leg is 7 ft. The length of the other leg is 10 ft. What is the length of the hypotenuse?
[tex]A 149 ft. Squared \\B 51 ft. Squared\\C 17 ft\\D 289 ft. Squared[/tex]
Answer:
12^2: 7^2 + 10^2
49 + 100 = 149
12^2: 12 x 12 = 144 close enough
Step-by-step explanation:
12 is your answer
find the area of a semi circle when the radius is 10cm.
give the answer in term of pi
Answer:
A = 50π cm²
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Area of a Circle: A = πr²
r is radiusStep-by-step explanation:
*Note: A semicircle is half a full circle.
Step 1: Define
Radius r = 10 cm
Step 2: Solve for A
Rewrite Area of Circle Formula: A = 0.5πr²Substitute in r [Area of Semicircle Formula]: A = 0.5π(10 cm)²[Area] Evaluate exponents: A = 0.5π(100 cm²)[Area] Multiply: A = 50π cm²how much fencing is required to enclosed a circular garden whose radius is 14 m? use 22/7 for π
Answer:
[tex]circumference = 2\pi \: r \\ = 2 \times \frac{22}{7} \times 14 \\ 88 \: m \: fence[/tex]
Move the correct words to the angle.
line segment
ray
endpoint
right angle
obtuse angle
Answer:
top box: ray
bottom box: endpoint
Step-by-step explanation:
top box: a ray is a line that doesn't stop and that is represented by a arrow on the end of it
bottom box: an end point is where a ray, or line segment stop and since i see two rays that stop there it is an endpoint
HELP!
What is the measure of angle BGC??
2. Welington city engineers are designing two parallel roads by the International Polo Club to help
with traffic flow during tournaments.
Answer:
159
Step-by-step explanation:
180 - 21
Jessica is eating a bag of Sour Skittles. Her friend asks her to share, and Jessica throws over an extra bag. Her friend does not catch the bag, and it hits the ground. The distance from the ground (height) for the bag of candies is modeled by the function h(t)=−16t2+32t+4h(t)=−16t
2
+32t+4, where h(t) is the height (distance from the ground in feet) of the candies and t is the number of seconds the candies are in the air. Describe in a paragraph what the graph of this scenario would look like.
Answer:
A parabola opens downward with vertex at (1,20)
The function that models the height of bag of candies is
The graph of this function is a parabola that opens downward.
To find the maximum height of the candy bag, we complete the squares to obtain the vertex form of the function.
Factor -16 to get;
Add and subtract the square of half the coefficient of t.
Factor the perfect square trinomial:
The vertex is (1,20)
This means the maximum height after 1 second is 20 feet.
Someone help me please! :(
Help no links please
Carmen will randomly pick one marker from a bowl and one crayon from another bowl.
- There are 4 green markers, 3 brown markers, and 1 purple marker.
- There are 6 orange crayons and 2 yellow crayon.
What is the probability of picking a brown marker and a yellow crayon?
2) Find the perimeter of the figure below.
6yd 5yd 9yd 4yd
SOMEONE PLEASEE HELP!!?!?
Answer:
The answer is H
Step-by-step explanation:
You can paint 8 square feet in 2 hours. How many square feet can you paint in 7 hours
8 square feet = 2 hours
°divide 2hrs to 8 square feet
1hr = ?
2÷8 =4
so,
1hr = 4 square feet
●In 1 hour 4 square feets will be covered•4 square feet can be painted in 1 hour.
*now to find how many square can be painted in 7 hrs.
°multiply no. of hours to hd no. of square feet per hour.
7hrs = ?
7×4 =28
So,
●28 square feet would be covered in 7 hours.may this helps you
bye
3x - x + 4 = 0
Need Step by Step PLZ
Answer:
3x - x + 4 = 0
2x = -4
x = -4 ÷ 2
x = -2
[/text]\blue{ \boxed{{Learn{\tt \colorbox {blue}{ \: with \: Aulia ✾ }}}}}[\text]
Answer:
someone pls help !! geometry problemmm
the answer to this question
Find the area of each figure
Answer:
1824in. 2
Step-by-step explanation:
first, we need to cut it to two figure (a triangle and a rectangle), then calculate each of the area.
the area of triangle
= 12in.×48in.×1/2
= 576in.2×1/2
= 288in.2
the area of rectangle
= 32in.×48in.
= 1536in.2
the area
= 288in.2+1536in.2
= 1824in.2
What is the length of each leg of the triangle below?
Answer:
Just multiply and divide the parallel sides.
Step-by-step explanation:
А ?B xº 73° What is the value of x?
I just need angle a and x
PLEADE HELP ILL WILL GIVE GAFT BRAINLIEST BRAINLIEST PLEAS EPLEASE PLEASE
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Hope this helps!
Step-by-step explanation:
I need help ASAP, pls
Find the volume and round to the nearest tenth
Answer:
6 x 4 = 24
24 x 15.3 = 367.2
half of 4 is = 2
2^2 = 4
4 x 3.14 = 12.56
12.56 divided by 2 = 6.28
6.28 x 15.3 = 96.084
367.2 + 96.084 =
463.284 ft3 is your answer.
solve for n
solve for n
solve for n
solve for n
solve for n
Answer:
n = 4Step-by-step explanation:
Isosceles triangle, the given angles are congruent
6n - 3 = n + 176n - n = 17 + 35n = 20n = 20/5n = 4Answer:
n = 4
Step-by-step explanation:
6n - 3 = n + 17
5n = 20
n = 4