Step-by-step explanation:
-9/8 is it's resiprocal
Describe the error in the work shown below.
Find an expression equivalent to 18 + 30.
Factors of 18:1,2,3,6,9, 18
Factors of 30:1,2,3,5,6, 10, 15, 30
18 + 30 = 6(3 + 10)
Need help
the lengths of the sides of a triangle are 2x+1, 3x-2, and 4x-5. what is the perimeter in terms of x
Answer:
Step-by-step explanation:
2X + 1 + 3X - 2 + 4X - 5 = 180
9X - 6 = 180
9X = 174
9 = 174
ـــــــــــــــــــــ
9 9
X = 19.333
The perimeter of the triangle in terms of x given the three side lengths is 9x - 6.
What is the perimeter?
A triangle is a three-sided polygon with three edges and three vertices. the sum of angles in a triangle is 180 degrees.
The perimeter of a triangle = sum of the side lengths
(2x + 1) + (3x - 2) + (4x - 5) = 9x - 6
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(a+b):a = 7:4 Find a:b
Answer:
4:3
Step-by-step explanation:
a+b = 7 units
a = 4 units
b = 7 - 4 units
Thus,
a:b
-----
4:3
(a+b) : a = 7:4
a = 4
a+b= 7
7- 4 = b
b = 3
a:b = 4:3Hope this will help....
what is the mean of 3 7 5 13 20 23 39 40
Answer:
18.75
Step-by-step explanation:
You add all the numbers together, then divide that total by the amount of numbers you added together.
two step equation
9x - 7 =-7
Answer:
x = 0
Step-by-step explanation:
Step 1: Write out equation
9x - 7 = -7
Step 2: Add 7 on both sides
9x = 0
Step 3: Divide both sides by 9
x = 0
an object is moving at a speed of 6 miles per month. express this speed in feet per hour. Don’t have to round anything up
Answer: 44 feet.
Step-by-step explanation: If the object is moving at a speed of 6 miles per month, that's 6 miles for every 720 hours at the very least. That's 1 mile for every 120 hours. That's 5280 feet for every 120 hours. The object is moving 44 feet every hour.
The speed of the object is 43.39 feet per hour.
What is unit conversion?It is the conversion of one unit to another unit with its standard conversion.
Example:
1 minute = 60 seconds
1 km = 1000 m
We have,
6 miles = 1 month
1 miles = 5280 feet
1 month = 730 hours
Now,
6 miles = 6 x 5280 feet
6 miles = 31680 feet
So,
31680 feet = 730 hours
Divide both sides by 730.
31680/730 feet = 1 hour
43.39 feet = 1 hour
Thus,
Speed is 43.39 feet per hour.
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Write each of the following sets of numbers in order of size, smallest first.
Use the symbol for'less than' in your answers.
0.7, 0.6, 0.8, 0.09, 1, 0.99. Please help.
Answer:0.09 < 0.6 < 0.7 < 0.8 < 0.99 < 1
Step-by-step explanation:
The perimeter of a square courtyard is 144 m. Find the cost of cementing it at the rate of £5 per m². *
Answer:
the cost is £ 6,480
Step-by-step explanation:
given:
The perimeter of a square courtyard is 144 m
find:
the cost of cementing it at the rate of £5 per m².
Perimeter = 4 Sides
144 = 4 S
S = 144/4
S = 36
Area = S²
A = 36²
A = 1296 m²
cost of cementing the area = 1296 m² x £5 per m² = £ 6,480
therefore,
the cost is £ 6,480
Need help ASAP With this Math Question
1. Sort the numbers into 2 groups, rational or irrational. Write the numbers in the appropriate bubble.
0.8
64
0
32
-19
- 100
2.343443444...
3
7
175
2
6
7
12.67
1121
TT
12
5
Irrational
Rational
3/7
O
0.8
2.343443444...
Answer:
[see below]
Step-by-step explanation:
All natural numbers, whole numbers, integers, fractions (with integers), and numbers with terminating or repeating decimals are rational. Irrational numbers cannot be written as fractions with integers. This includes non-germinating and non-repeating decimals.Rational Numbers:
0.8640 (it can be written as [tex]\frac{0}{1}[/tex])32-19-100371752612.6711211253/7Irrational Numbers:
2.343443444...πHope this helps.
what is 0.32 as faction
Answer:
8/25
Step-by-step explanation:
0.32 as a fraction is 8/25
Answer:
Its 8/25
Step-by-step explanation:
If 2(x + 3) + 7x = 3(x - 2) - 9, then x = ?
Answer:
x=-3.5 or -3 1/2
Step-by-step explanation:
2(x+3)+7x=3(x-2)-9
2x+6+7x=3x-6-9
9x+6=3x-15
6x=-21
x=-3.5 or -3 1/2
What are the zeros of the following function?
y = x2 + x - 12
A.-4, 3
B.4, -3
C.-6, 2.
D.6, -2
HOW TO DO THIS PLZ. Sorry you might have to flip the image.
Answer:
The answer is 10.
Step-by-step explanation:
40÷4=10.
Find the absolute value of |-10.2|
Answer:
10.2
I hope this helps!
The price of a sweater was reduced from $20 to $12. By what percentage was the price of the sweater reduced?
Answer:
40%
Step-by-step explanation
12 is a 40% decrease of 20.
Steps:
Percentage of decrease = |20 - 12|/20 = 8/20 = 0.4 = 40
Answer:
40%
Step-by-step explanation:
What is the slope of the line that contains the points (-2,5) and (6,-3)? O A. 1 O B. -8 O C. -1 O D. 8
Answer:
-1
Step-by-step explanation:
Find the slope using the slope formula
m = (y2-y1)/(x2-x1)
= (-3-5)/(6 - -2)
= (-3-5)/(6+2)
= -8/8
= -1
Answer:
The answer is option CStep-by-step explanation:
The slope of a line given two points can be found by using the formula
[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} [/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(-2,5) and (6,-3)
The slope is
[tex]m = \frac{ - 3 - 5}{6 + 2} = - \frac{8}{8} = - 1[/tex]
We have the final answer as
- 1Hope this helps you
how to solve 2(x − 1) ≤ 12
Answer:
Step-by-step explanation:
2x - 2 ≤ 12
2x ≤ 14
x ≤ 7
PLEASE HELP ME WITH THIS
ALSO
is it
corresponding
alternate exterior
alternate interior
same side interior
Answer:
x = -4 & It's same side Interior
Step-by-step explanation:
If you have any questions about the way I solved it correctly, don't hesitate to ask me in the comments below ÷)
4(2x+1)-(-2+8x) : use the distributive property and combining like terms to simplify
I may be dumb but like can y’all help me with this?
2 x 2
Answer:
Step-by-step explanation:
the answer is 4
Can I get the answer plz
Answer:
Try 0 or 1
Step-by-step explanation:
Scince the number before rounding is 4, try rounding it to 0 or 1.
Find the equation of the line. Use exact numbers.
Answer:
y=-3/2x+3
Step-by-step explanation:
The slope is -3/2x because it's going down 3 and to the right 2.
And it intercepts the y-axis at 3. Thus, 3 is the y-intercept.
Answer:
y = -3/2 x +3
Step-by-step explanation:
We can use the slope intercept form
y = mx+b where m is the slope and b is the y intercept
The y intercept is 3
Now to find the slope
Pick two points on the line
( 0,3) and ( 2,0)
m = ( y2-y1)/(x2-x1)
= ( 0-3)/(2-0)
= -3/2
The equation of the line is
y = -3/2 x +3
The midpoint of AB is M(-4,0). If the coordinates of A are (-6,6), what are the coordinates of B?
Answer:
(-2,-6) is your answer..
hope this helped you
please mark as the brainliest (ㆁωㆁ)
a pair of jeans cost $30. there is a 6% sales tax. determine the total cost of jeans.
A. $28.00
B. $36.00
C. $31.80
D. $44.00
As an accountant for a bowling alley, you calculate that 31% of revenue comes from food and beverages. To use
the percentage in calculations, you must convert the value to a decimal.
What is 31% as a decimal?
0.0031
0.031
0.31
3.1
31
Answer:
0.31
Step-by-step explanation:
31 / 100 = 0.31
Mr. smith thinks his new smoothie recipe is the best ever. He believes it gives people more energy and also helps them lose weight. In order to prove this, he sets up an experiment. He randomly assigns 1/3 of his subjects to drink 1 smoothie per day for 10 weeks. The next 1/3 are andomly assigned to drink one smoothie per week for 10 weeks. The rest are assigned to 1 large cup of water per day for 10 weeks.
What is the control group?
a) 1 smoothie per day
b) 1 smoothie per week
c) 1 large cup of water per day
d) no control group
Answer:
I'd say 1 smoothie per day
Step-by-step explanation:
2 and 2/5 multiplied by 5
Answer:
12
Step-by-step explanation:
2 2/5 * 5 = 12
Answer:
12
Multiply the equation.
2 2/5 x 5 = 12.
2 x 5 = 10.
2/5 x 5 = 2.
Add 10 + 2. You get 12.
3. My pineapple curd recipe calls for 4 of a cup of sugar. The only clean measuring cup I have
left is the half-cup. How many scoops of sugar using the half-cup measuring cup do I need in
order to double the recipe?
The United States has a population of approximately 323 million people. What is this number written in scientific notation?
