Answer: 15
Step-by-step explanation:
4-7+9=8
+7 +7
4+9=15
15=15
Answer:
Step-by-step explanation:
Dan and David are marking exam papers. Each set takes Dan 35 minutes and David 1 hour. Express the time's Dan and David take as a ratio.
Give your answer in its simplest form.
Answer:
7 : 12
Step-by-step explanation:
35 : 60 cuz 60 mins is an hour
7 : 12
Use the GCF to factor: 24x + 12y
Answer:
36xy
Step-by-step explanation:
write the rate and unit rate. 609 kilometers in 7 hours ???
Answer:
The rate is 609 kilometers per 7 hours.
The unit rate is 609/7 = 87 kilometers per hour.
Step-by-step explanation:
Should be right
Answer:
87 Kilometers per hour and if by unit rate you mean how many miles they are doing a miniute then it is 1.45 kilometers per hour
Step-by-step explanation:
Solve for x if: y = -6 and -10x + 7y = 18
A) 8
B)-18
C)-6
D)9
Answer:
Step-by-step explanation:
-10x+7(-6)=18
-10x-42=18
+42 +42
___________
-10x/-10=60/-10
x= -6
What is the Slope in the equation y= -2x +5
Answer:
-2
Step-by-step explanation:
y=-2x+5
y=mx+b where m=slope and b=y-intercept
I need help hurry please
Answer:8.8ft
Step-by-step explanation:
250/3.14*3^2
250/3.14*9
250/28.26
8.8464
8.8ft
The mean of the numbers 7, 5x, 4, 8 and 6 is
10. What is the value of x?
Ans:
Answer:
Step-by-step explanation:
[tex]\frac{7+5x+4+8+6}{5} = 10[/tex]
7+5x+18=50
5x+25 = 50
5x = 25
x = 5
Answer:
25+5x =105
25+5x=505x=50-25x=25/5x=5hope it helps.
ercise 5d
lve the following
lutions.
13 - 6a = 1
Answer:
the answer is 17a
Step-by-step explanation:
I took the quiz
What is the volume of this cone?
Answer:
[tex]V=209\ cm^3[/tex]
Step-by-step explanation:
The height of this cone, h = 8 cm
The radius of this cone, r = 5 cm
We need to find the volume of this cone. The formula for the volume of a cone is given by :
[tex]V=\dfrac{1}{3}\pi r^2 h[/tex]
Put all the values,
[tex]V=\dfrac{1}{3}\times 3.14\times 5^2 \times 8\\\\=209.33\approx 209\ cm^3[/tex]
So, the volume of this cone is equal to [tex]209\ cm^3[/tex].
Please help ASAP (NO LINKS)
An import business owner paid $6000 for the goods sold in one month. Her additional expenses are $1600 per month. If she marks up her merchandise 70%, what was her profit for the month?
Answer:
the answer is $2,600 I belive so
Find the area of a garden whose circumference is 36 yards.
HELP ASAP!!!! 10 points!!
Answer:
a, b, c are all perfect square trinomials
Step-by-step explanation:
a) (x+3)²
b) (w²-2)²
c) (xy-1)²
free brainlest To first person pls
4 x (9 - 2)
Answer:
=28x
Step-by-step explanation:
Solve within parenthesis first;
Subtract 9-2=7
=4*7x
Multiply the numbers;
4*7=28
=28x
There are 3 characters (elf, hobbit, or human) and 5 defense tools (magic, sword, shield, slingshot, or umbrella) to pick from. If you randomly choose your character and tool, what is the probability that you'll be a magic elf?
Answer:
The probability that I pick a magic elf is 6.66%.
Step-by-step explanation:
Since there are 3 characters (elf, hobbit, or human) and 5 defense tools (magic, sword, shield, slingshot, or umbrella) to pick from, if I randomly choose my character and tool, to determine what is the probability that I'll be a magic elf, the following calculation must be performed:
1/3 x 1/5 = X
0.3333 x 0.2 = X
0.0666 = X
0.0666 = 6.66%
Therefore, the probability that I pick a magic elf is 6.66%.
Can someone please help me?? I have a huge test coming up and I need to review for it. Do you know the answer? If you do, please explain it because i want to be sure the day of the test. Thanks!! 25 Points!!
Answer:
Easy way is completing a square:
x² + 20x - 39 = 10x² + 2*x*10 + 100 = 49 + 100(x + 10)² = 149x + 10 = ± √149x = - 10 ± √149Correct choice is J
Ahmed and his family has dinner at a restaurant and the cost of their meal is BD 28.
Because of the service, he wants to leave a 20% tip. What is his total bill including tip?
ents
Select the correct response:
се'
BD 24.600
ts
BD 33.600
BD 40.500
BD 40
Answer:
Total bill will be BD 33.600
Step-by-step explanation:
28 multiplied by 20% = 5.6
Add 5.60 to the cost
28.00 + 5.60 = 33.600
hope this helps and is right. p.s. i really need brainliest :)
find the sum of the polynomial : (3 x2- 8x + 2) + (3 x3 + 7x + 6) =
Answer:
3x² + 3x³ - x + 8
Step-by-step explanation:
All we have to do is add the terms together
(open parentheses as well)
3x² - 8x + 2 + 3x³ +7x +6
now, simplify
3x²+3x³-x+8
Look at this graph :
Is this relation a function?
Step-by-step explanation:
Yes it is a function dearest
A bag contains 4 blue marbles, 3 white marbles, and 2 pink marbles. What is the probability of NOT drawing a white marble?
Answer:
2/3
Step-by-step explanation:
Total marbles:
4 + 3 + 2 = 9
Non-white marbles:
4 + 2 = 6
Probability of not drawing a white marble:
6/9
2/3
Answer:
6/9
Step-by-step explanation:
n=numerator
d=denominator
b=blue
p=pink
w=white
m=marbles
What we know:
4 bm
2pm
3 wm
what we need to know:
we need to know the denominator (all the numbers added up) and the numerator (the marbles that aren't white marbles).
work:
n= 4+2=6
d= 4+3+2=9
so it is 6/9
Can I please have Brainliest?
A credit card company advertises an APR of 17.2%, compounded daily. What is the effective interest rate
Answer:
18.76%
Step-by-step explanation:
effective interest rate = ( 1 + periodic interest rate)^m - 1
m = number of compounding = 365
Periodic interest rate = APR / number of compounding = 17.2 / 365 = 0.0471% = 0.000471
(1 + 0.000471) ^365 - 1 = 18.76%
please solve Y Im in desperate need of help..
Answer:
Y = 10
Explanation:
We know that the left and top angles are 45°, the base is 10, and the bottom right angle is 90°, or a right angle. The simplest way I can explain this is the bottom side of the triangle is the same as the right side of the triangle. Meaning "y" would be 10 like the bottom.
If I'm right, I'd appreciate a brainliest as it'd really help me out :D
Each figure below is a regular polygon and has a radii and apothem shown. Find the measure of each numbered angle
The answers to any of these would be really helpful
Answer:
Step-by-step explanation:
Q9) Surface Area of a cylinder
= 2πr(r + h)
Diameter = 12cm , Radius = Diameter/2 = 12 cm/2
r = radius = 6cm
h = height = 10 cm
Surface area = 2 × π × 6(6 + 10)
= 603.18579 cm²
Approximately = 603.2 cm²
Q11) Volume of a rectangular prism
Length × Width × Height
Length = 6.5cm
Width = 8.5 cm
Height = 4 cm
Volume = 6.5 cm × 8.5 cm × 4 cm
Volume = 221 cm³
Q12) Volume of the cylinder = πr²h
r = radius = 1.7m
h = height = 9 m
Volume = π × 1.7 × 9
= 81.71 m³
Approximately = 81.7 m³
Q13) Volume of the cylinder = πr²h
Diameter = 0.8m, Radius = Diameter/2 = 0.8m/2
r = radius = 0.4m
h = height = 1.5 m
Volume = π × 0.4 × 1.5
= 0.75 m²
Approximately = 0.8 m³
marking brainliest! please help
Answer:
H.
Step-by-step explanation:
F is incorrect because you don't know how many service calls a person will make. G is incorrect for the same reason, but with texts. J is incorrect because 8 skirts per hour is making the graph unproportioned.
Answer:
H
Step-by-step explanation:
A bakery makes 6 loaves of bread every 1/2 hour or 12 loaves every hour.
Please answer question!
Answer:
23ft
Step-by-step explanation:
Please answer correctly! I will mark you as Brainliest!
Answer:
V = 336 ft3
Step-by-step explanation:
1/2*7*16*6
336
Answer: 336 ft cubed
Step-by-step explanation:
Formula is 1/2 times B times L times H so, 7 times 6 is 42, 42 times 16 is 672 and 672 divided by 2 or multiplied by 1/2 is 336
f(n)=x2+1
g(n)=2x-5
Find f(n)-g(n)
hi please help i’ll give brainliest thanks
Answer:
point A
Step-by-step explanation:
Hope this helps you dude.
what is the coefficient of 49n+986=-43
Answer: 49
Step-by-step explanation: A coefficient is the number placed in front of the variable, meaning n is the unknown number, aka variable. Making 49 the coefficient to that variable.
Hope this helps ^^
Answer:
49
Step-by-step explanation:
A coefficient is the numerical or constant quantity placed before or multiplied by a variable.
Naomi used a rectangle, a square, and a right triangle to form the following figure. What is the area of the shaded region of the figure in square centimeters?
Answer:
102cm²
Step-by-step explanation:
Step 1 find the area of the whole rectangle
Area of a rectangle = width times length
The width of the rectangle is 20 cm and the length is 6cm
So the area = 20 * 6
20 * 6 = 120
Hence the area of the rectangle is 120 square centimeters.
Step 2 Find the area of the square and the triangle
Area of square = s²
where s = side length
The square has a side length of 3 so the area of the square = 3²
3² = 9
Hence, the area of the square is 9cm²
Now to find the area of the triangle
area of a triangle = [tex]\frac{bh}{2}[/tex] where b = base length and h = height
We are given the height (3 cm, this is given because the square is sharing it's side length with the height of the triangle.)
Now to find the base length
We can find it by subtracting the overall rectangle's width (20cm) by the bottom width (11 cm) and the bottom length of the square ( 3 cm )
so triangle's base length = 20 - 11 - 3
20 - 11 - 3 = 6
so the base length of the triangle is 6 cm
now we plug in the values of the height and the base length into the formula
[tex]A=\frac{6*3}{2} \\6*3=18\\\frac{18}{2} =9[/tex]
Hence the area of the triangle is 9 cm²
Finally, to find the area of the shaded area, we subtract the area of the triangle and the area of the square from the area of the rectangle
so your answer = 120 - 9 - 9
120 - 9 - 9 = 102
Hence, the area of the shaded region is 102 square centimeters.