Answer:
-10ab
Step-by-step explanation:
(2a)(-5b)
Multiply the constants
2* -5 = -10
Multiply the variables
a*b = ab
Combine
-10ab
The expression -10ab represents the product of 2a and -5b
To simplify the expression (2a)(-5b), we can multiply the coefficients and combine the variables.
Multiplying the coefficients, 2 and -5, gives us -10.
For the variables, we multiply the like terms, which in this case are 'a' and 'b'. When we multiply 'a' and 'b', we simply write them side by side: ab.
Therefore, simplifying (2a)(-5b) results in -10ab.
The expression -10ab represents the product of 2a and -5b, combining the coefficients and variables into a single term. It is important to note that the order of the variables, 'a' and 'b', is maintained in the simplified form.
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at a vacation resort, you can rent a jet ski for $35 per hour plus a $20 rental fee. your bill came to $90.
write an equation that can be used to represent this situation?
Answer:
Step-by-step explanation:
You rent a 35 dollar jet ski and per hour plus a 20 dollar rental fee. Your bill came to 90 dollars.If 35 and 20 dollars equal to 55 that means you had payed something that was 1-35 dollars. 35 + 20 = 55
Choose the statement that best describes a solution of a system of linear inequalities.(1 point)
A solution of a system of linear inequalities is an ordered pair that satisfies at least one of the inequalities in the system.
A solution of a system of linear inequalities is an ordered pair that satisfies the intersection of the border of each inequality.
A solution of a system of linear inequalities is an ordered pair that satisfies neither inequality in the system.
A solution of a system of linear inequalities is an ordered pair that satisfies each inequality in the system.
Answer: A solution of a system of linear inequalities is an ordered pair that satisfies each inequality in the system.
Step-by-step explanation:
A system of linear inequalities can be written as:
y < a*x + b
y < c*x + d
or
y ≤ a*x + b
y ≤ c*x + d
In the first case, the borders are not included in the solutions, and in the second case, the borders are included.
Where the solutions will be points like (x, y), where these points must be solutions for both inequalities.
Then the only option that is correct for a general system of inequalities is:
A solution of a system of linear inequalities is an ordered pair that satisfies each inequality in the system.
Answer:
A solution of a system of linear inequalities is an ordered pair that satisfies at least one of the inequalities in the system.A solution of a system of linear inequalities is an ordered pair that satisfies the intersection of the border of each inequality.A solution of a system of linear inequalities is an ordered pair that satisfies neither inequality in the system.A solution of a system of linear inequalities is an ordered pair that satisfies each inequality in the system.
A hair stylist knows that 87% of her customers get a haircut and 40% get their hair colored on a regular basis. Of the customers who get their hair cut, 24% also get their hair colored. What is the probability that a randomly selected customer gets their hair cut and colored?
0.10
0.21
0.35
0.40
Answer:
Okay so!
Step-by-step explanation:
for a cut that's .87 and for a color that is .24 so you multiply them together to get the probability for the color which is
.35 or C on edge
The probability that a randomly selected customer gets their hair cut and colored is .
What is probability?Probability is the chance of happening an incident or event. A probability is calculated by the ratio of the possible outcomes to total number of outcomes.
Given, the probability of he customer get a hair cut is = P(A) = 87% = 0.87.
The probability of he customer get their hair colored is = P(B) = 40% = 0.4.
Therefore, the probability of a randomly selected customer get hair cut and hair color is = P(A) × P(B) = 0.87 × 0.4 = 0.35
Therefore, 35% of the total customer get hair cut and color.
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Please help I will give brainliest to whomever's answer is correct
Answer:
i think its the last one
Step-by-step explanation:
it seems like the smart thing ti pick
A one-minute advertisement on a local television station during prime time (8-10 p.m. on weeknights) costs the advertiser $12,800. To the nearest cent, how much does the advertisement cost per second? Show your work using dimensional analysis and Giant Ones
X+y=8
Y=3x
Solve with substitution
Correct answer gets Brainliest!!
Answer:
x=2, y = 6
Step-by-step explanation:
We see that y = 3x so we can substitute the y in x + y = 8.
x + 3x = 8.
Combine like numbers:
4x = 8.
Divide both sides by 4.
x = 2
Now plug in x to find y
2 + y = 8
Subtract 2 from both sides.
y = 6
Given: F=(0,1),(2,4),(4,6),(6,8) and g=(2,5),(4,7),(5,8),(6,9),(7,5) (fxg)(2)
Answer:
(F-G)(x) = -1
Step-by-step explanation:
The notation (F - G)(x) means to subtract each function when x = 6. According to the sets when x = 6 then F is (6,8) and G is (6,9). To subtract the functions, subtract their output values. (F-G)(x) = 8 - 9 = -1.
Step-by-step explanation:
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]f \times g = (2 \: , \:4 \times 5) \: , \: (4 \: , \: 6 \times 7) \: , \: (6 \: , \: 8 \times 9) \\ [/tex]
[tex]f \times g = (2 \: , \: 20) \: , \: (4 \: , \: 42) \: , \: (6 \: , \: 72) \\ [/tex]
_________________________________
Thus ;
[tex](f \times g)(2) = 20[/tex]
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Which pair of ratios is not equal? 72 : 64 and 27 : 4 72 : 64 and 27 : 4 90 to 18 and 5 to 1 90 to 18 and 5 to 1 25 to 10 and 10 to 4 25 to 10 and 10 to 4 6 : 7 and 30 : 35
Answer:
a) 72 : 64 and 27 : 4
Step-by-step explanation:
a) 72 : 64 and 27 : 4
72 /64 = 27/4
9/8 ≠ 27/4
Not equal
b) 90 to 18 and 5 to 1
90 : 18 = 5/ 1
5/1 = 5/1
Equal
c) 25 to 10 and 10 to 4
25 :10 and 10 : 4
25/10 = 10/4
5/2 = 5/2
Equal
d) 6 : 7 and 30 : 35
6/7 = 30/35
6/7 = 6/7
Equal
The pair of ratios that is not equal is
a) 72 : 64 and 27 : 4
Kim eats 1/3 of an apple in 1/6 minutes.How many minutes will it take for her to eat the whole apple? Please help
Answer:
1/2 a minute.
Step-by-step explanation:
You multiply 1/6 by 3 and get 3/6, then simplify and end with 1/2.
Answer:
It will take Kim 3/6 or 1/2 of a minute to eat the apple
Step-by-step explanation:
(Geometry) Please help! 50 points
Answer:
A) similar; SSS similarity
Step-by-step explanation:
You have to find the proportion by dividing each side to the according side
35/14 = 2.5 - S/D
20/8 = 2.5 - R/E
30/12 = 2.5 - Q/F
Answer:
A B AND C
Step-by-step explanation:
The answers are
abcPlz help me, I am terrible in math
Answer: it is either C or D
Step-by-step explanation:but It looks like its D
It's easy I'm just not I'm my head rn can someone help?
This is a career explorations question, not math btw!!
Event planners may be responsible for which of the following? Select all that apply.
A: a sporting arena's fan night
B: a birthday party
C: a wedding
D: a Black Friday sale
Students plan to pay back half the debt now though fundraising, and the rest after the harvest. Write an equation to represent the debt they will repay through fundraising. Use a negative integer to show debt. Use "D" to represent the debt that will be repaid by through fundraising.
Answer:
D = [tex]\frac{-d}{-2}[/tex]
Step-by-step explanation:
The students in this question are trying to pay back only half of the current debt (d) with the fundraiser (D). Since debt is money that is owed it would therefore be represented as a negative but in this case the fundraiser needs to be positive since it is money gained. So since we have a negative we would need to divide by -2 in order for the total to be positive.
D = [tex]\frac{-d}{-2}[/tex]
Finally, we are left with this equation which shows the debt that will be repaid through the fundraiser
-36x - 24 ≤ -6(5x + 12)
Answer:
x ≥ 8
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define inequality
-36x - 24 ≤ -6(5x + 12)
Step 2: Solve for x
Distribute -6: -36x - 24 ≤ -30x - 72Add 36 on both sides: -24 ≤ 6x - 72Add 72 on both sides: 48 ≤ 6xDivide both sides by 6: 8 ≤ xRewrite: x ≥ 8Here we see that any number x greater than or equal to 8 would work as a solution.
Bloome’s Flower Shop purchases vases by the caseload. Each case contains 24 vases. On average, 3 vases are usually cracked and cannot be used. At this rate, how many vases should be expected to be cracked if Bloome’s orders 216 vases?
Answer:
72
Step-by-step explanation:
Could JKL be congruent to XYZ? Explain.
Answer:
The could be congruent since the have an equal side length and when XYZ gets rotated it can get mapped on to JKL
Step-by-step explanation:
hope this helpsss
Answer:yes
Step-by-step explanation:
What is an equation of the function shown in the graph?
O A. y = 3x - 12
O B. y = 1x +3
O C. y= 1x - 12
O D. y = 4x + 3
PLEASE HELP ME!!
Plzz pls pls pls pls help me I’m stuck
Answer:
1. x-5=3x-45
2. x=20
3.Perimeter is 45 units since each side is 15 units.
Step-by-step explanation:
x-5=3x-45
-5=2x-45
40=2x
x=20
So AB is 15 and AC and BC is also 15 since it is equilateral. 15+15+15=45 The perimeter is 45 units.
helpp ill mark u as brain list
Answer:
the second one
-1 -2
3 0
5 1
7 2
How to solve 2-step equations
Answer/Step-by-step explanation:
1) First, add or subtract both sides of the linear equation by the same number.
2) Secondly, multiply or divide both sides of the linear equation by the same number.
3)* Instead of step #2, always multiply both sides of the equation by the reciprocal of the coefficient of the variable.
A recipe says to use 2 cups of chocolate chips to make 36 cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of chocolate chips used, x?
question attached above
Answer:
23*
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
Darius sees a new store advertising 10 of the same packs of paper clips for $41.50. Which statement best describes the strategy Darius should use to get the best price for each pack?
Answer:
$4.150/packStep-by-step explanation:
Given the price of 10packs as $41.50, we can express it as;
10 packs = $41.50
To get the equivalent price of 1 pack, we will say;
1 pack = $x
Solving both equalities for x;
10 packs = $41.50
1 pack = $x
cross multiply
10 * x = 1 * 41.50
10x = 41.50
Divide both sides by 10
10x/10 = 41.50/10
x = 4.150
Hence the price for each pack is $4.150
if 3/8=24c, then c=9 true or false
Answer:
false because the equal to signifies that both equations are equal but apparently they are not
Write the equation of the line that has a y-intercept of (0,4) and a slope of 2.
Answer:
y=2x+4
Step-by-step explanation:
the y-intercept is the y value of the point given. in the slope form, 2 would be your m
This morning, Mai's car had 15.25 gallons of fuel. Now, 1.9 gallons are left. How much fuel did Mai use?
Answer:
13.35
Step-by-step explanation:
Just subtract. 15.25-1.9 gives you the difference.
Mai used 13.35 gallons of fuel.
Unitary method is a process by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit.
To calculate the fuel Mai used, we can subtract the remaining fuel from the initial amount of fuel.
This can be done as follows:
Initial amount of fuel = 15.25 gallons
Remaining amount of fuel = 1.9 gallons
Fuel used = Initial amount of fuel - Remaining amount of fuel
Therefore, Fuel used = 15.25 - 1.9
Fuel used = 13.35
Therefore, We can conclude that Mai used 13.35 gallons of fuel.
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Lisa's school requires each student to earn 75 hours of community service each year. Lisa has
already earned 27 hours. She plans to earn the remainder of her hours by volunteering at a
nursing home. If Lisa spends 2 hours at the nursing home per visit, which equation represents the
number of visits, v, that Lisa will need to make to fulfill her community service requirement?
Answer:
v=24
Step-by-step explanation:
If f(x) = (2x + 1)2 – 3 and g(x) = 2(2x2 + 3), which statement is true?
A. f(-5) = g(4)
B. f(3) = g(0)
C. f(1) = g(1)
D. f(-3) = g(-2)
Answer:
d
Step-by-step explanation:
becasuse when you multiply all that stuff since x is the is y fancy way o f saying
From the calculations, we can see that the true statement is f(-3) = g(-2): Option D is correct.
Given the following functions
f(x) = (2x + 1)²– 3 and g(x) = 2(2x² + 3),
According to the last option.
f(-3) = (2(-3) + 1)²– 3
f(-3) = (-6+1)² - 3
f(-3) = (-5)² - 3
f(-3) = 25 - 3
f(-3) = 22
For g(-2)
g(-2) = 2(2x² + 3),
g(-2) = 2(2(-2)² +3)
g(-2) = 2(8+3)
g(-2) = 2(11)
g(-2) = 22
Hence from the calculations, we can see that the true statement is f(-3) = g(-2)
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Which expression represents the word phrase the product of 3 and 6 more than a number? 3(x+6) 3(6−x) 3x + 6 I don't know.
Answer:
The answer would be 3(x + 6).
3(x+6) is the expression represents the word phrase the product of 3 and 6 more than a number
What is Expression?An expression is combination of variables, numbers and operators.
Given,
We need to find the expression of word phrase "the product of 3 and 6 more than a number"
Product means multiplication of two or more numbers.
more than a number means a number is added to it.
Here in the given phrase, x is the added number.
6 more than a number means 6+x
the product of 3 and 6 more than a number
3(x+6)
Hence 3(x+6) is the expression represents the word phrase the product of 3 and 6 more than a number
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Tony needs 6.5 ft. of wood for his fort.
He only has 3.2 ft.
How much more does he need?