Answer:
what? better explanation
Find 4ab when (a+b)=15 and (a-b)=12
Answer:
81
Step-by-step explanation:
here,
(a+b)=15 -------(1)
(a-b)=12 -------(2)
Equating the equation (1) and (2)
a + b = 15
a - b = 12
(b gets cancelled having opposite signs)
or, 2a = 27
or, a = 27÷2
a = 13.5
then, putting value of a in equation (1)
a+b=15
or, 13.5 + b=15
or, b=15-13.5
b=1.5
lastly,
4ab = 4×13.5×1.5
= 81
hope it helps!!
morgan worked 39.5 hours one week, 40.75 hours the next week. if morgan receives $8.71 per hour wages, plus 1.5 times their base pay for all hours 40 hours a week, what is Morgan's Gross pay the the two weeks
Answer:
$698.60
Step-by-step explanation:
realley this answer is confram please follow me
1. The sum of first n terms of an arithmetic sequence is 3n²+4n
a, what is its first term?
b, write the algebraic form of the sequence.
c, find the 20th term.
Answer:
a. a₁=7, b. a_n=7n+1, c. a₂₀=141Step-by-step explanation:
a.
[tex]a_1=S_1=3\cdot1^2+4\cdot1=3+4=7[/tex]
b.
[tex]a_1+a_2=S_2\\\\a_1+a_1+d=3\cdot2^2+4\cdot2\\\\7+7+d=3\cdot4+8\\\\14+d=12+8\\\\d=6\\\\\\a_n=a_1+d(n-1)\\\\a_n=7+6(n-1)\\\\a_n=7+6n-6\\\\\underline{a_n=7n+1}[/tex]
c.
[tex]a_{20}=7\cdot20+1=141[/tex]
What is the domain of this exponential function?
Show work please I have no clue how to do this.
A ladder is leaning against a house so that the top of the ladder is 12 feet above the ground. The angle the ladder makes with the ground is 51°. How long is the ladder?
12•sin51°
12/cos51°
12•cos51°
12/sin51°
None of these
Answer:
12/sin5°
Step-by-step explanation:
This angle can be calculated using the law of sine:
sin(angle)=opposite cathete/hypothenuse
sin(angle)=wall/ladder
In this exercise we want to calculate the length of the hypotenuse (ladder), so the equation is changed afterwards.
sin(angle)=wall/ladder
sin(angle)*ladder=wall
ladder=wall/sin(angle)
Now the given values are used:
ladder=wall/sin(angle)
ladder=12ft/cos(51°)
Is the sequence an= 4 + 2n arithmetic?
Answer:
Sorry am not answer that because am desperate for points so am just going to get some points
A painter mixed 5 pints of white paint, 3 pints of blue paint, and 4 pints of yellow paint. He wrote the ratio 3:12. Which statement BEST describes this ratio?
A. the ratio of the number of pints of white and yellow paint to the number of pints of blue paint
B. the ratio of the number of pints of blue paint to the number of pints of blue and yellow paint
C. the ratio of the number of pints of yellow paint needed to make 4 times as much blue paint
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D. the ratio of the number of pints of blue paint to the total number of pints of paint
Answer:
The answer is D
Step-by-step explanation:
The ratio of the number is 3, and blue has 3.
The second number ratio has 12, and the total number of paints is 12
BRAINLIEST ANSWER!!
During the summer, you work 30 hours per week at the gas station and earn $8.75 per hour. You also work as a landscaper for $11 per hour and can work as many hours as you want. You want to earn a total of $400 per week. How many hours, t, must you work as a landscaper?
Identify an equation that can be used to answer the question.
A) 30t=400-8.75(11)
B) 8.75+11+400=30+t
C) 8.75t+11t=400
D) 30(8.75)+11t=400
Solve the equation to find the number of hours you must work as a landscaper.
You must work ___ hours as a landscaper.
Answer:
1. 30(8.75) + 11t = 400
2. 12.5 hours
Step-by-step explanation:
1. What is given is you work for 30 hours per week at a gas station for $8.75 an hour. You also work as a landscaper for $11 an hour. You want to a make a total of $400 per week.
30 hours and $8.75 an hour would be equivalent to 30(8.75)
We don’t know how many hours you work as a landscaper but you earn $11 an hour, which is equivalent to 11t
Finally, you want to earn a total of $400 a week, which means the sum equals 400
30(8.75) + 11t = 400
2. 30(8.75) = 262.5
400 - 262.5 = 137.5
137.5 / 11 = 12.5
Which procedure correctly simplifies the expression? ( 4 x − 3 ) − 2 ( x + 5 ) A. Step 1: 4 x − 2 x − 3 + 5 Step 2: 2 x + 2 B. Step 1: 4 x − 3 − 2 x − 5 Step 2: 2 x − 8 C. Step 1: 4 x − 3 − 2 x − 10 Step 2: 2 x − 13 D. Step 1: 4 x − 3 + 2 x + 10 Step 2: 6 x + 7
Answer:
Step 1: 4 x − 3 − 2 x − 10
Step 2: 2 x − 13
Step-by-step explanation:
Given the expression;
(4 x − 3) − 2 (x + 5)
The following steps/ procedure are to be taken when simplifying the expression.
open the parenthesis
(4 x − 3) − 2 (x + 5)
= 4x-3 -2(x)-2(5)
= 4x-3-2x-10
collect the like terms
= 4x-2x-3-10
simplify the resulting expression
= 2x-13
Hence the procedure that correctly simplifies the expression are:
Step 1: 4 x − 3 − 2 x − 10
Step 2: 2 x − 13
0.26 as a fraction? And 0.79 as a fraction?
Answer:
0.26=13/50 0.79=79/100
Step-by-step explanation:
All decimals are over a number in the power of ten. If you say the decimals out loud you would say "26 hundredths " and "79 hundredths" so you place the decimals over 100 and then simplify.
Answer: 12/50 and 79/100
what is -37.27+(-13.2)
Answer:
-50.47
Step-by-step explanation:
So you see how there is a +(- ? That means to ignore the + and just subtract. BUT, when you subtract negatives it's simply adding them together.
So to do it you would say 37.27 + 13.2 which gives you 50.47. Then make it negative and boom there is your answer!
Mark brainliest if you can :D
Nathalie has some quarters, dimes, and nickels. The ratio of the number of quarters to the number of dimes to the number of nickels that she has is $9:3:1$. The total value of these coins is $18.20. How many coins does Nathalie have?
Answer:
the answer is 91
Step-by-step explanation:
One group of 9 quarters, 3 dimes, and 1 nickel has the value of $9 \times 25 + 3 times 10 + 5=26 cents or 2.60 in total.
Since the coins she has are in this same ratio 9:3:1, we can split her coins up into groups of 9 quarters, 3 dimes, and 1 nickel, with each group having a value of 2.60
Because the total value of her coins is 18.20and 18.20\2.60=7, she has 7 of these groups of coins.
Each of these group contains 13 coins, so she has 7 times 13 = 91 coins in total.
Each of these group contains 13 coins, so she has total 91 coins.
What are nickles, dimes, quarters and cents?A dollar is further divided into some majorly used parts as:
A cent = 100th part of a dollar = $1/100 = $0.01
A nickle= 20th part of a dollar = $1/20 = $0.05
A dime = 10th part of a dollar = $1/10 = $0.10
A quarter = 4th part of a dollar = $1/4 = $0.25
One group of nine quarters, 3 dimes, and 1 nickel has the value of $9
25 + 3 times 10 + 5=26 cents or 2.60 in total.
Since the coins Nathalie has are in this same ratio 9:3:1, thus we can split her coins up into groups of 9 quarters, 3 dimes, and 1 nickel, with each group having a value of 2.60
Due to the total value of her coins is 18.20
18.20/2.60=7,
Hence, she has 7 of these groups of coins.
Each of these group contains 13 coins, so she has total ;
7 x 13 = 91 coins
Learn more about partition of dollars here:
https://brainly.com/question/27187336
#SPJ2
Please help me out with these 2 questions! Legit answers only please!
Answer:
1.) 12 hours 2.) She made a multiplying error in the table.
Step-by-step explanation:
1.)
First, let's find the slope of this equation:
m = 135 - 81 / 5 - 3
m = 54/2
m = 27
Therefore, the equation should be y = 27x.
Now we substitute 324 for y and solve for x:
324 = 27x
12 = x (Divided 27 on both sides.)
Therefore, someone would have to work 12 hours in order to earn $324.
2.)
For this problem, it appears Amanda has found the correct equation for her recipe. When taking a look at the table, however, it seems as though she has made a multiplying error.
Find the distance between -12 and 36 on the number line.
distance
Answer:
24
Step-by-step explanation:
If two data sets have a positive trend, which of the following is true?
A) The leftmost points on the scatter plot of the data sets will tend to be higher than the rightmost points.
B) The trend line for the scatter plot must have a positive slope.
C) All of the points on the scatter plot must lie on the trend line.
D) All of the above are true.
Answer:
D
Step-by-step explanation:
Answer:
A is the answer to this question ol
9+10
A: 21
B: 19
C: 910
D: 91
Answer:
19
Step-by-step explanation:
This is simple, You put 10+9 on paper, 0+9=9 and 1+0=1 Which gives you your answer of 19!
(I think this is a meme 0.0)
Find three consecutive even integers such that their sum decreased by 34 is equal to the first and integer.Find the first integer.
Answer:
61
Step-by-step explanation:
Landrie is selling bracelets and earrings to make money for a SUP (Standup Paddle Board) has a goal to earn $500. She plans on selling the bracelets for $2 and the earrings for $3. If she has the materials to make a total of 190 items, how many of each item must she make to accomplish her earning goals?
Answer:
120 earrings and 70
Step-by-step explanation:
Answer:120,70
Step-by-step explanation:
120 and 70
Can you help me with all of them so 1-6 for them please
________________________
✩ Answer:
✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*
[tex]\bold{Hello!}\\\bold{Your~answer~is~below!}[/tex]
✩ Step-by-step explanation:
✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*
✺ Divide both sides by −3. Since −3 is negative, the inequality direction is changed:
-3 ÷ -3 = Cancels OutTurns into: [tex]\frac{-9}{-3} >5x-2[/tex]✺ Divide −9 by −3 to get 3. Since they are both negatives it turns into a positive:
-9 ÷ -3 = 3Turns into: [tex]3 > 5x - 2[/tex]✺ Swap sides so that all variable terms are on the left hand side. This changes the sign direction once more:
Turns into: [tex]5x-2<3[/tex]✺ Add 2 to both sides:
Turns into: [tex]5x<3+2[/tex]✺ Add 3 and 2 to get 5:
3 + 2 = 5Turns into: [tex]5x<5[/tex]✺ Divide both sides by 5. Since 5 is positive, the inequality direction remains the same:
5 ÷ 5 = Cancels OutTurns into: [tex]x<\frac{5}{5}[/tex]✺ Divide 5 by 5 to get 1:
5 ÷ 5 = 1✺ So your answer is B, [tex]\boxed{x<1}[/tex].
(Number line is below.)
[tex]Hope~this~helps~and,\\Best~of~luck!\\\\~~~~~-TotallyNotTrillex[/tex]
Answer:
[tex]\boxed {x < 1}[/tex]
Step-by-step explanation:
Solve the following inequality:
[tex]-9 < -3(5x - 2)[/tex]
-When you are dividing an integer by a negative integer, then the inequality sign changes. So, divide both sides by [tex]-3[/tex]:
[tex]\frac{-9}{-3} < \frac{-3}{-3} + 5x - 2[/tex]
[tex]3 > 5x - 2[/tex]
-Switch sides:
[tex]5x - 2 < 3[/tex]
-Add [tex]2[/tex] to both sides:
[tex]5x - 2 + 2 = 3 + 2[/tex]
[tex]5x < 5[/tex]
-Divide both sides by [tex]5[/tex]:
[tex]\frac{5x}{5} < \frac{5}{5}[/tex]
[tex]\boxed {x < 1}[/tex]
The number line graphed (if needed):
Tamara spun the arrow on a spinner 50 times. The number of times the arrow landed on each colored section of the spinner is shown in the table.
Section
Number of Times
Arrow Landed On
Red
23
Blue
Orange
Yellow
8
10
9
Based on the results in the table, what fraction of the area of the spinner is most likely represented by the Red section?
Answer:
1/2 .
Step-by-step explanation:
Answer: 1/2
Step-by-step explanation:
What is the value of -1 - 8 - (-10)?
reeee i need help
Please help. jfmnhnhbmnjmjhj
Answer:
d
Step-by-step explanation:
Given three points A, B, and M, with M as the midpoint of AB, find each of the following. A(-5, -4) and M(1, -5). Find the coordinates of B.
Answer:
7,-6 maybe?
Step-by-step explanation:
is 1/5-x equivalent to x-1/5
Explain how you would solve the equation -7 + x = 12 using the properties of equality. (Site 1)
Given problem:
Solve using the property of equality;
-7 + x = 12
The properties of equality are;
Addition. Definition. If x = y, then x + c = y + c. ...
Subtraction. Definition. If x = y, then x – c = y – c. ...
Multiplication. Definition. If x = y, then xc = yc. ...
Division. Definition. If x = y and c is not equal to 0, then x / c = y / c
Now;
- 7 + x = 12;
base on the properties of equality, to eliminate -7, add +7 to both sides;
-7 + 7 + x = 12 + 7
x = 19
Based on the properties of equality, the solution is 19
Whats the answer of this problem?
Answer:
5b-24
Step-by-step explanation:
ABF is the total angle for this equation. In order to find EBF, all you need to do is subtract ABE from the total, so the equation would be:
(7b-24) - 2b = 5b-24
hope this helps you!! <3
Charlie wants to order lunch for his friends. He'll order sandwiches and a $2 kid's meal for his little brother. Charlie has $32. How much can he spend on each sandwich if they are all the same price? "choose two answers" A) Inequality: 2x+6<32. B)Answer $5 or less. C) Inequality 6x+2 ≤32.D)Answer $13or less. E) Inequality 2x+6≤32. F) Inequality 6x+2≥32
So, obviously, since one of the prices is given, which is $2.00 for the kid's meal, then you need to subtract that from his $32.00 total to know what number you need to divide into the 6 sandwiches. So, so far you have $30.00. If you divide $30.00 by the 6 sandwiches, you will find out he could only spend $5.00 per sandwich. So basically, you got the expression of (32 -2) / 6 in order to find out that your answer is $5.00. Looking at you answer choices, I can see right away that D is correct. For the inequality, I can see that B would be the correct answer for this problem because he can't go over budget. So, your answers are B and D.
Hope this helps have a nice day and a brainlylist would be appreciated
A submarine’s elevation is −280 feet relative to sea level. A shark is swimming at an elevation of −20 feet. What is the difference in elevation between the submarine and the shark?
Answer:
260 ft
Step-by-step explanation:
-280+20=260
Hullan's age is two times Thomas's age. The sum of their ages is 21. What is Thomas's age?
