Josh wants to simplify the expression (-8)(10+(-5)+(-8)). To get the fully simplified expression, Josh must multiply 10, -5, and -8 by some number and then add the resulting products.
By what number must Josh Multiply?
Answer:
-8
Step-by-step explanation:
In the expression (-8)(10-5-8), the -8 is right next to the (10-5-8), so the -8 would multiply the rest of the expression.
Some examples: 2(3) = 2 × 3
6(2 + 4) = 6 × (2 + 4)
6(1 - 2(3)) = 6 × (1 - 2 × 3)
(-7)(9 - 4 - 7) = (-7) × (9 - 4 - 7)
Sam has saved 200 sand dollars and wants to give them away equally to n friends. Write an expression to show how many sand dollars each of Sam's friends will receive.
..................................help please?......................................................
(jk−1)÷j when j=−4 and k=−0.7
Answer: -0.45
Step-by-step explanation:
Plug in the variables
(-4 × -0.7 - 1) ÷ -4
Simplify
(2.8 - 1) ÷ -4
1.8 ÷ -4
-0.45
When j = 4 and k = 0.9, the answer in decimal notation to the above equation (jk1)j is 0.65.
What is meant by decimal?An accepted approach for notating both integers and non-integers is the decimal number system. It is a non-integer number extension of the Hindu-Arabic number system. The term "decimal system" is frequently used to refer to the system of representing numbers.
Start by dividing decimals by ten before multiplying them.. Next, determine how many decimal places there are for each factor. Put the same amount of digits after the product's decimal points.
There are three varieties of decimal numbers:
non-repeating
recurring
decimal fractions
Given:
j = 4 and k = 0.9
(jk − 1) ÷ j
equating the values in the given formula
(4 × 0.9-1) ÷ 4
= (3.6 - 1) ÷ 4
= 2.6 ÷ 4
= 0.65
Therefore When j = 4 and k = 0.9, the answer in decimal notation to the above equation (jk1)j is 0.65.
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Angle MNO is formed by segments MN and NO on the following coordinate grid:
Angle MNO is rotated 90 degrees counterclockwise about the origin to form angle M′N′O′. Which statement shows the measure of angle M′N′O′? (1 point)
Group of answer choices
m∠ M′N′O′ = 90 degrees
m∠ M′N′O′= 180 degrees
m∠ M′N′O′ = 2 ⋅ m∠MNO
m∠ M′N′O′ = m∠MNO
Answer:
m∠ M′N′O′ = m∠MNO
as 0'N'M = 90 Degrees.
It rotates 90 Degree but the actual angle is just = m∠MNO
Step-by-step explanation:
please help
find all points on the curve…
The graph below models the value of a $20,000 car t years after it was purchased.
Value of Car
A graph titled Value of Car has years on the x-axis and Dollars on the y-axis. A line curves down and goes through points (0, 20,000), (4, 10,000), and (14, 2,000).
Which statement best describes why the value of the car is a function of the number of years since it was purchased?
Each car value, y, is associated with exactly one time, t.
Each time, t, is associated with exactly one car value, y.
The rate at which the car decreases in value is not constant.
There is no time, t, at which the value of the car is 0.
Answer:
Each time, t, is associated with exactly one car value, y.
what is the value of 2.6+0.9=−(−−2.1)
Answer:
3.5 is your answer I hope this can help
use implicit differentation to determine dy/dx for the equation
please solve questions 4-8!! please solve by multiplying the decimals!! please and thank you :)
you didn't attach anything
Please help me ASAP
*please don’t post links they don’t work*
At the market, Joey buys 3 avocados for $.40 each and 5 lemons for $0.40 each. The cashier in training rings up 3 × 0.40 and then 5 × 0.40 to get the total. The experienced cashier says to add the 3 plus 5 in his head and then ring up 8 × 0.40.
What property says that these two totals would be the same?
1. Associative property of multiplication
2. Commutative property of multiplication
3. Multiplicative identity
4. Distributive property
Answer:
A. The Associative property of multiplication
----------------------------------------------------------------------------------------------------------------
Step-by-step explanation:
Your answer is the "Associative property of multiplication" because, the associative property says that, "rearranging the parenthesis in a expression will not change the result".
So, in this instance, no matter whether the cashier rings up:
5 ⋅ 0.40 + 4 ⋅ 0.40, or simply 8 ⋅ 0.40 the total will be $3.20 both ways.
The property which states that these two totals would be the same is : Associative property of multiplication, because the grouping of the numbers does not affect the result. option (1) is correct.
The "Associative-Property" of multi-plication mentions that change in the grouping of factors in multi-plication does not changes the result.
The "associative-property" of multiplication can be expressed as : (a × b) × c = a × (b × c); This property holds true for any real numbers a, b, and c.
In this case, both methods involve multiplication, and we are either grouping the numbers differently before multiplication (3 × 0.40) and (5 × 0.40), or after multiplication, as (3 + 5) × 0.40.
The associative property provide a guarantee that both ways gives the same-result.
Therefore, the correct option is (1).
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Jordy is working on her homework. She has a total of 5 assignments to complete by Friday. If Jordy has completed 1 1/3 assignments, how many assignments does she have left to complete.
Answer:
2.67 left to complete.
Step-by-step explanation:
5- 1 1/3= 5-4/3
=5-1.33 - 2.67 left to complete.
You buy the same pair of pants in 3 different colors for $89.85. How much does each pair of pants cost?
Answer:
$29.95
Step-by-step explanation:
89.85 divided by 3 is 29.95
Answer:
Each pair of pants is $29.95
Step-by-step explanation:
All you have to do is divide 89.85 by 3.
what is the sum of (-0.4) with an exponent on the outside of 2
Answer:
0.16
Multiply -0.4 times -0.4
Same signs=positive
Answer:
0.16
Step-by-step explanation:
help please????????????
Answer:
D
Step-by-step explanation:
When multiplying exponents with same base, add the powers
Answer:
The awnser is D
During the hottest week of the summer, the water level of the Muskrat river was 5/6 below normal. The following week, the level was 1/3 foot below normal. what is the overall change in the water level?
start at - 1/3 number line.
step 1 | find - 1/3 - (5/6)
step 2 | start at - 1/3
step 3 | move -5/6 = 5/6 to the right because ur subtracting a negative number.
the result is 1/2
so the water increased 1/2 foot.
now, compare the methods used to solve example 1 and 2.
Answer:
4/3
Step-by-step explanation:
To avoid a storm, a passenger-jet pilot descended 0.38 mile in 0.4 minute. What was the plane's average change of altitude per minute?
Answer:
0.55 mile / minute
Step-by-step explanation:
The average change of altitude per minute would simply be the ratio of distance descended over time. That is:
average change of altitude = distance / time
average change of altitude = 0.44 mile / 0.8 minutes
average change of altitude = 0.55 mile / minute
9x - 4 = ??
show step by step btw
Answer:
If 9x-4=0, and you are solving for x, then x=4/9.
Step-by-step explanation:
9x-4=0
9x=4
x=4/9
The value of x is x = 4/9, for the expression 9x - 4 = 0.
Here, we have,
given that,
the expression is:
9x - 4 = 0
now, we have to solve it for x.
so, we get,
9x-4=0
=> 9x=4
=> x=4/9
so, we have,
If 9x-4=0, and we are solving for x, then x=4/9.
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I need help please this is about ratios
If the custodian finds 4 rotting bananas in the dumpster in her first 13 weeks of work, how many rotting bananas would she expect to find in 26 weeks? Write a proportion to represent the problem. Use a variable, such as x, to represent the unknown quantity. rotting banana(s) week(s) Enter the number of rotting bananas that she expects to find in 26 weeks. *see picture for much better explanation*
A punch recipe that serves 24 people calls for 4 liters of lemon-lime soda, 2 pints of sherbet, and 6 cups of ice. How much of each ingredient would you need to make an identical recipe that serves 36 and 18 people
Answer:
What can I do for you?
Step-by-step explanation:
1. Matt is going to create a graph of the equation y = -0.75x + 6. Which of the following will be true about the graph? a. The graph will contain the origin. b. The graph will increase from left to right. c. The graph will cross the x-axis at (6,0). d. The graph will have a slope of -0.75.
The graph of the equation y = -0.75x + 6 is shown in figure.
And, The correct statement about the graph is,
d. The graph will have a slope of -0.75.
What is Equation of line?
The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The equation is,
⇒ y = -0.75x + 6
Now,
The graph of the equation y = -0.75x + 6 is shown in figure.
Clearly, It is not passing through the origin.
And, It cannot cross the x-axis at (6,0).
Since, The standard form of the equation of line is,
⇒ y = mx + c
Where, m is the slope of the line.
So, By comparing we get;
The slope of the line (m) = - 0.75
Thus, The correct statement about the graph is,
d. The graph will have a slope of -0.75.
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Please use the y = mx + b form, i have y = 3/2x but i don't know the y intercept.
through: (4, 3), SLOPE = 3/2
please provide an explanation i am really struggling.
So you have the begining of the equation:
y = 3/2 x + b
To find the b, you substitute in x=4 and y=3 (from 4,3):
3 = 3/2 · 4 + b
Solving that...
3 = 6 + b
-3 = b
So your line is: y = 3/2 x - 3.
It's also a good idea to double check, but substituting in just the x-value and seeing if it gives you the correct y-value:
y = 3/2 · 4 - 3
y = 6 - 3
y = 3
Yup, that checked.
63 is 90% of what number? pls help
Please help me. Thank you.
Answer:
scale factor is 3
Step-by-step explanation:
HOW DO I SOLVE THIS??????!!!!!! 8.418 into a fraction pls show how you got the answer or just explain pls help
Answer:
8 209/500
Step-by-step explanation:
8 418/1000 ----> 8 209/500
Mia is 6.92784 × 10^6 minutes old. Convert her age to more appropriate units using years, months, and days. Assume a year has 365 days and a month has 30 days.
Answer: Mia is 13 years, 4 months and 7 days old
Explanation:
60 minutes in an hour
24 hours in a day (60 x 24 = 1440 minutes)
30 days in a mouth (1440 x 30 = 43,200 minutes)
360 days in a year (1440 x 365 = 525,600 minutes)
To find out how many years old she is we must divide the number of minutes old she is by the number of minutes in a year.
7015680 / 525,600 = 13 years with a remainder of 182,880 minutes
To find out how many months old she is we must divide the remaining minutes by the number of minutes in a month.
182,880 / 43,200 = 4 months with a remainder of 10,080 minutes
To find out how many days old she is we must divide the remaining minutes by the number of minutes in a day.
10,080 / 1440 = 7 days
What is the difference between income and expenses?
Income is the money going out; expenses are the money coming in.
Income is the money coming in; expenses are the money going out.
Income is the amount paid in payroll taxes; expenses are the amount before payroll taxes.
Income is the amount paid in payroll taxes; expenses are the amount before payroll tax.
what is the answer to this one because this is confusing