Answer:
change/original price X 100
22/88 X 100 = 25%
Balena has a garden in the shape of a circle of radius 10 m.
He is going to cover the garden with grass seed to make a lawn.
Grass seed is sold in boxes.
Each box of grass seed will cover 46 m' of garden.
Balena wants to cover all the garden with grass seed.
Work out an estimate for the number of boxes of grass seed Balena needs.
Show your working out.
Answer:
7
Step-by-step explanation:
→ Work out area of circle
π × 10² = 100π = 314.159 (3 decimal places)
→ Divide area of circle by box area
314.159 ÷ 46 = 6.8295
→ Round answer as you can't get a decimal of a box
7
The area of a circle is given as πr².
The number of boxes of grass seeds required to cover the garden is 9 boxes.
What is a circle?A circle is a round-shaped figure that has no corners or edges.
The area of a circle is given as:
Area = πr²
We have,
The radius of the circle = 10 m
Area of the garden:
= πr²
We can take,
π = 22/7 = 3.14
= 3.14 x 10 x 10
= 314 m²
The area of a box of grass seeds:
= 46 m²
The number of boxes of grass seeds to cover the garden area:
= 314 / 46
= 6.8 boxes
Thus,
The number of boxes of grass seeds required to cover the garden is 9 boxes.
Learn more about circle here:
https://brainly.com/question/24293810
#SPJ2
Each month, a phone company charges $20 for 500 minutes of talk time plus $0.45 for each additional minute. Unlimited texting costs $30 more. Choose an expression to show the cost of a talk-and-texting plan for one month, given x minutes over 500.
Answer:
50+45x
Step-by-step explanation:
if a girl has 74% battery left and her chrome says it has 7:23 is time that she has left. she panics cause it is second period, and she thinks it means it has 7 mins and 49 seconds left. she is wrong. how is she wrong?
What are all equivalent to 10+2x+5y+3x
Answer: The very last one 5y +5y +10
Step-by-step explanation:
Whiskers the cat weighs 3 1/2 kg and Pilglio weighs 5 kg. How many times as heavy as pilglio is whiskers? How many times as heavy as whiskers is pilglio?
Given:
Whiskers the cat weighs [tex]3\dfrac{1}{2}[/tex] kg and Pilglio weighs 5 kg.
To find:
How many times as heavy as pilglio is whiskers?
How many times as heavy as whiskers is pilglio?
Solution:
We have,
Weight of cat (whiskers) = [tex]3\dfrac{1}{2}[/tex] kg
= [tex]\dfrac{3(2)+1}{2}[/tex] kg
= [tex]\dfrac{7}{2}[/tex] kg
= 3.5 kg
Weight of pilglio = 5 kg
Now,
[tex]\dfrac{Whiskers}{Pilglio}=\dfrac{3.5}{5}=0.7[/tex]
Therefore, whiskers is 0.7 times as heavy as pilglio.
[tex]\dfrac{Pilglio}{Whiskers}=\dfrac{5}{3.5}[/tex]
[tex]\dfrac{Pilglio}{Whiskers}=1.428571...[/tex]
[tex]\dfrac{Pilglio}{Whiskers}\approx 1.43[/tex]
Therefore, piglio is about 1.43 times as heavy as whiskers.
Solve the literal equation for y.
2x – xy = 3
Answer:
Step-by-step explanation:
2x-xy=3
-xy=3-2x
y=3-2x/x
Answer:
[tex]y = - \frac{3}{ x} + 2[/tex]
Step-by-step explanation:
So we want y to be on a side by itself.
2x-xy=3
Subtract 2x from each side
-xy=3-2x
divide each side by -x
[tex]y = \frac{3}{ - x} + 2[/tex]
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
What is the equation of the line that passes through the point (5,2) and has a
slope of -6
Answer: If the given slope is –6/5, the equation is
y –2 = –6/5(x -5)
The attachment shows the graph of this equation.
The point-slope form is y = –6x/5 + 8
Step-by-step explanation: The basic form for a point-slope equation is
y - b = m(x - a)
a is the x-value from the given coordinate, b is the y-value form the given coordinate, m is the slope. x and y are the variables in the function.
The slope, m, is given: -6/5 Substitute for m
Given coordinate points (5,2) substitute the x-value in place of a and the y-value in place of b
Rewrite the equation:
y - b = m(x - a) becomes
y - 2 = –6/5(x - 5)
Which statement is true about the speeds of the two cars
The diagram shows a right-angled triangle.
14 cm
hcm
47°
What is the value of h?
Give your answer correct to 1 decimal place.
Answer:
The diagram shows a right-angled triangle.
14 cm
hcm
47°
What is the value of h?
Give your answer correct to 1 decimal place.
19.1
What is the slope and y-intercept
Phillip wanted to leave a 15% tip. He thought to himself that 15% = 10% plus half of 10%. Which of the following equations will help Phillip estimate the tip on a $36.00 bill correctly?
A.
$3.60 + $1.80 = $5.40
B.
$3.60 + $3.60 = $7.20
C.
$3.60 + $0.36 = $3.96
D.
$1.80 + $1.80 = $3.60
Answer: D
Step-by-step explanation:
How many groups of 5/6 are in 1
9514 1404 393
Answer:
1 1/5
Step-by-step explanation:
We want to find the number of times (5/6) goes into 1, so we divide ...
1/(5/6) = 1 × 6/5 = 6/5 = 1 1/5
There are 1 1/5 groups of 5/6 in 1.
_____
Another way to look at it
You can consider 1 to be divided into 6 equal part:
o o o o o o
We can group these in groups of 5, so each group is 5/6 of the whole:
(o o o o o) o
What we see is that we have 1 group, and 1/5 of another group.
That is, 1 has 1 1/5 groups of 5/6 in it.
i will mark answer brainliest
Answer:
its 17.3 or 18.0 feet
Step-by-step explanation:
If θ is in standard position and -180° < θ <-90°, then θ terminates in Quadrant _____.
1) II
2) III
3) I
4) IV
Answer: Should be quadrant 3
Step-by-step explanation:
1 is everything in -360
2 is everything in -270
3 is everything in -180
4 is everything in -90
So basically it is less than -90 so it couldn’t be in quadrant 4 it would be before it so quadrant 3. Sorry if this is incorrect but it is to the best of my knowledge
Find the total surface area of this cuboid.
5 cm
4 cm
6 cm
Answer:
The surface area of given cuboid is: 148 square centimeters
Step-by-step explanation:
Let
l = 5
w = 4
h = 6
The cuboid has 6 rectangular surfaces.
The surface area of a cuboid with height h, length l and width w is given by:
[tex]TSA = 2 ( lw+wh+hl )[/tex]
Putting the values
[tex]TSA = 2(5*4 + 4*6 + 6*5)\\= 2(20+24+30)\\=2(74)\\=148\ cm^2[/tex]
Hence,
The surface area of given cuboid is: 148 square centimeters
7x + y = 33
3x + y = 17
x=
y=
simultaneous
List a, b, and c for the following Quadratic: 2x2 + 5x + 3 = 0
Answer:
a = 2
b = 5
c = 3
URGENT!
Write the equation of the ellipse graphed below.
I already asked this question but still no answer, sadly.
\Answer:
[tex]\displaystyle \frac{(x-7)^2}{4}+\frac{(y+2)^2}{36}=1[/tex]
Step-by-step explanation:
Equation of The Ellipse
Given the center (h,k) and the length of the major and minor axis, we can write the equation of the ellipse as follows:
[tex]\displaystyle \frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1[/tex]
If the major axis is a, then the ellipse is horizontal, if the major axis is b, then the ellipse is vertical.
The ellipse shown in the figure is centered at (7,-2). The major axis is b and it can be found by measuring the distance from the center up or down to any vertex. We find b=6 and a=2.
Thus, the equation of the ellipse is:
[tex]\displaystyle \frac{(x-7)^2}{2^2}+\frac{(y+2)^2}{6^2}=1[/tex]
Operating:
[tex]\mathbf{\displaystyle \frac{(x-7)^2}{4}+\frac{(y+2)^2}{36}=1}[/tex]
A train travels 430 miles in 5 hours at a constant speed. If its speed remains the same, how long will it take to travel the remaining 215 miles of its route?
Answer:
2.5 hours
Step-by-step explanation:
To get the hourly speed, we need to divide 430 by 5.
This means that the train is going at a speed of 86 miles/hour.
Since we need to find the hour, we need to divide 215 miles by 86 miles/hour.
[tex]215 miles / \frac{86 miles}{hour}[/tex]
We can use the keep change flip to do [tex]215 miles * \frac{1 hour}{86 miles}[/tex]
This would give us 2.5 hours.
Answer:
2.5
Step-by-step explanation:
hope this helps
Please help me with the questions
Step-by-step explanation:
.................b = 37.8
27x27x27x27= ? Im doing math homework... and I keep getting messed up..
Answer:
531441
Step-by-step explanation:
27 x 27= 729
27 x 27= 729
729 x 729= 531441
Express the value of each tangent ratio to the nearest tenth or as a fraction
9514 1404 393
Answer:
1) 5/12
2) 4/3
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that the tangent ratio is ...
Tan = Opposite/Adjacent
__
1) For angle Z, the ratio is ...
tan(Z) = XY/YZ = 10/25 = 5/12
__
2) For angle C, the ratio is ...
tan(C) = AB/BC = 20/15 = 4/3
12x+3=15x
show how u got the answer
Answer:
x = 1
Step-by-step explanation:
Given
12x + 3 = 15x ( subtract 12x from both sides )
3 = 3x ( divide both sides by 3 )
1 = x
Answer: x=1
Step-by-step explanation: So we're solving for x right but slight problem x is on both sides of the equation so we have to fix this. we can subtract 12x from both sides to get 12x-12x=0 and 15x-12x=3x so now we have 3x=3 to find x divide by 3 on both sided since 3/3=1 so 3x divided by 3 equals 1x or x and 3 divided by 3 is 1 so x=1
Math
12x+3=15x
-12x -12x
3=3x
/3
1=x
Can anyone help me get X
Answer:
X=38
Step-by-step explanation:
this is an isosceles triangle as we can see by the lines on the sides of the triangle. that means both of those sides are equal to 52.
52x2=104
A triangle adds up to 180. If two of the sides already equal 104 then the last side will be how much will go up to 180.
180-104=76
It is cut by a bisector DB meaning both sides will be equal. So divide 76 by 2 and we get 38
I can't really tell if x is for one side of angle b or both sides. If it is only for one side then it is 38 but if it is for the whole angle B then it is 76.
A bottle contains 1.7 L of water. A second bottle contains 450 mL of water. What is the total number of mL of water in both bottles?
Answer:
2150 mL
Step-by-step explanation:
1L=1000mL - convert
1.7mL=1700mL - convert problem numbers
1700+450mL - addition
2150mL- answer
a rectangular sign is 4 times its width if the perimeter is 20 inches what is the signs area.
Answer: 1,600 cubic inches
Step-by-step explanation: 20x4=80 multiply both sides 80x20=1,600 cubic inches
Find the value of 7w-8 given that -4w-5=3
Simplify your answer as much as possible.
7w - 8 =
Answer:
The value of 7w - 8 is -22
Step-by-step explanation:
Let us solve the question
∵ -4w - 5 = 3
→ Move -5 from the left side to the right side by adding both sides by 5
∴ -4w - 5 + 5 = 3 + 5
∴ -4w = 8
→ Divide both sides by -4
∵ [tex]\frac{-4w}{-4}[/tex] = [tex]\frac{8}{-4}[/tex]
∴ w = -2
→ Now let us find the value of the given expression
∵ The given expression is 7w - 8
→ Substitute w by -2 to gets its value
∴ 7w - 8 = 7(-2) - 8
∴ 7w - 8 = -14 - 8
∴ 7w - 8 = -22
∴ The value of 7w - 8 is -22
Evaluate the expression b2- 15 if b=9
Answer:
3
Step-by-step explanation:
just plug in 9 to b
9x2=18 18-15=3
please help!! i need help with numbers 3 and 4.
Answer:
3. Markup $3.50 Retail Price $13.50
4.)Markup $10 Retail Price $50
Answer:
3. $ Markup = $3.50
Retail Price = $13.50
4. $ Markup = $10
Retail Price = $50
Step-by-step explanation:
Turn the % markups into decimals. For 3, you would turn the % markup into 0.35 and for 4 you would turn the % markup into 0.25.
Multiply the decimals by the price. Your result for the $ markup for 3 should be $3.50 and the result for 4 should be 10.
Now add the $ markup to the original price for 3 and 4.
10 + 3.50 = $13.50
40 + 10 = $50
I hope this helped.
Find the equation of the line described.
Perpendicular to y = 3x + 6; passing through the point (4,5).
The line equation is y =
Answer:
y = - [tex]\frac{1}{3}[/tex] x + [tex]\frac{19}{3}[/tex]
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 3x + 6 ← is in slope- intercept form
with slope m = 3
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{3}[/tex] , thus
y = - [tex]\frac{1}{3}[/tex] x + c ← is the partial equation
To find c , substitute (4, 5) into the partial equation
5 = - [tex]\frac{4}{3}[/tex] + c ⇒ c = 5 + [tex]\frac{4}{3}[/tex] = [tex]\frac{19}{3}[/tex]
y = - [tex]\frac{1}{3}[/tex] x + [tex]\frac{19}{3}[/tex] ← equation of perpendicular line