Answers
Answer:
Correct solution in steps
5 - 2(a + 7) + 10a = The first operation is parenthesis5 - 2(a) - 2(7) + 10a = The second operation is simplification5 - 2a - 14 + 10a = Next operation is collecting like terms(10a - 2a) + (5 - 14) = Next operation is simplification8a + (-9) = 8a - 9The error in the given solution was the first step: (5 - 2)
Related Questions
On a map, 1 inch equals 15 miles. Two cities are 3 inches apart on the map. What is the actual distance between the cities?
Answers
Actual distance = distance on map x the scale:
3 inches x 15 miles per inch = 45 actual miles.
Identify the numerator for the following fractions:
(1) 3/13
(2) 10/18
(3) 6/5
(4) 35/60
Answers
(2) 10
(3) 6
(4) 35
32
Which set of values makes the inequality n > -5 true?
A
{-5, -5.5, -6}
B
{-5, -4.5, -3}
С
{-6,0,5}
D
{-6, -7,-8}
Answers
Answer:
B
Step-by-step explanation:
≥ means that it is greater than or equal to.
Any set that has all numbers over or equal to -5 would be correct, meaning that -5, -4.5, and -3 would be correct.
Hope this helps. Have a nice day.
Inequalities help us to compare two unequal expressions. The set of values makes the inequality n > -5 true is {-5, -4.5, -3}.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.
It is mostly denoted by the symbol <, >, ≤, and ≥.
As we need to find the values that will satisfy the inequality n≥-5, therefore, we need values that are greater than or equal to -5.
Hence, the set of values makes the inequality n > -5 true is {-5, -4.5, -3}.
Learn more about Inequality:
https://brainly.com/question/19491153
Use the identity LaTeX: \left(x+y\right)\left(x^2-xy+y^2\right)=x^3+y^3 to find the sum of two numbers if the product of the numbers is 28, the sum of the squares is 65, and the sum of the cubes of the numbers is 407.
Enter your answer as a number, like this: 42
Answers
Answer:
you just copy and pasted from your canvas assignment or something. its a bunch of random code.Step-by-step explanation:
hey need help with this quick question, thanks :)
Answers
Answer:
The answer is 2
Step-by-step explanation:
just subtract the powers of 10 and 8.
I will mark Brainlyst
Answers
(I think)
The first time Jane went to the fitness center she exercised for 20mins. She adds 10 mins to her exercise program every other day after that. how many days will it take Jane to build her exercise program every other day after that. how may days will it take Jane to build her exercise program up to an hour in length?
Answers
Answer:
9 days
Step-by-step explanation:
Day 1 20 min
Day 2 20 min
Day 3 30 min
Day 4 30min
Day 5 40 min
Day 6 40 min
Day 7 50 min
Day 8 50 min
Day 9 60 min
Pls help i will give brainliest
Answers
Answer:
4:120, 6:180, 8:240
each time it's 30 x the amount of bags, it's 30 pounds a bag
Step-by-step explanation:
C. No, Bretts claim is incorrect because the pythagorean can only be used with a right triangle
D. No, Bretts claim it is incorrect because the pythagorean theorem can only be used when the side length of a triangle are equal
CAN SOMEBODY PLEASE HELP
Answers
Answer:
C. The answer is C, as pythagorean theorem only works on right triangles.
What’s the answer??????
Answers
Answer:
50p
Step-by-step explanation:
you can add them all up together. 27+3+6+14=50!
HELP ASAP will give brainlist
Answers
Answer:
add the numbers first and divide to 3x
A multiple-choice test consist of 100 questions. A correct answer is with 2 Marks While an incorrect answer is worth -1 Marks if a student received a score of 80 how many questions did the student answer incorrectly?
Answers
Answer:
im guessing 20 questions are incorrect
Step-by-step explanation:
Write the word sentence as an inequality. Then solve the inequality.
The product of −2 and a number x is greater than 30.
Answers
Step-by-step explanation:
divide by 2 then reverse
CAN SOMEONE PLSS HELP I WILL MARK BRANLIEST!
Answers
which expression has the least value when x=100?
A.1/x
b.10/x
c.1-x
D 10-x
Answers
Answer:
C
Step-by-step explanation:
C will have the least value with -99.
A would be 1/100, which is 0.01, which is small, but larger than -99.
B would be 10/100, which is 0.1, which is larger than A.
C is 1-100, which equals -99.
D is 10-100, which equals -90. -99 is smaller than -90.
Answer:
c) 1 - x
Step-by-step explanation:
x = 100
a) [tex]\frac{1}{x}[/tex] ⇒ [tex]\frac{1}{100}[/tex]
answer ⇒ 0.01
b) [tex]\frac{10}{x}[/tex] ⇒ [tex]\frac{10}{100}[/tex]
answer ⇒ 0.10
c) 1 - x ⇒ 1 - 100
answer ⇒ -99
d) 10 - x ⇒ 10 - 100
answer ⇒ -90
In 2010, the number of participants in a checkers tournament was 2.6 × 10^4 people. In 2013, the number of participants in a checkers tournament was 5.2 × 10^6 people. By what factor did the number of participants increase from 2010 to 2013?
Answers
please help me,
11x13 = _ x 13+5 x 13
what is the number that goes in the blank
Answers
Answer:
14508 if I'm wrong I'm sorry
At a sale, suits were sold for $72 each. This price was 45% of a suit's original price. How much did a suit originally cost?
Answers
Answer:
$160
Step-by-step explanation:
Let the original cost of suit be x
If the suits were sold for $72 each and this price was 45% of a suit's original price, then;
72 = 45% of x
72 = 0.45x
x = 72/0.45
x = 160
Hence the original price of the suit is $160
Answer:
160
Step-by-step explanation:
got it correct ig lol
FIND THE ANGLE OF ELEVATION. PLS HELP. ANSWER IF YOU FOR REAL KNOW THE ANSWER. I WILL MARK U BRAINLEST IF THE ANSWER IS CORRECT
Answers
Answer:
46.06
Step-by-step explanation:
the angle from the right triangle is 43.94 so you subtract from 90 and 46.06
Answer:
46 degrees
Step-by-step explanation:
acos(18/25) is 43.95
Subtract that from 90 and round and you get 46 degrees
A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew this table.
Number of nuts
Number of
Midpoint (x)
packets (0)
fx
4-6
5
3
15
7-9
8
9
72
10 - 12
11
12
132
13 - 15
14
17
238
16 - 18
17
9
153
50
610
a) Complete the table.
b) Calculate an estimate for the mean.
Answers
A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew a table.
Number Midpoint Number of
of nuts (x) packets (f) f.x
4 - 6 5 3 15
7-9 8 9
10 - 12 11 12
13 - 15 14 17
16 - 18 17 9
50
To Find :
complete the table
calculate and estimate for the mean
The estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.
a) To complete the table, we need to find the values of "fx" (frequency multiplied by the midpoint) for each class interval. Here's the updated table:
Number of Nuts Number of Packets Midpoint (x) fx
4-6 5 5 5 * 3 = 15
7-9 8 8 8 * 9 = 72
10 - 12 11 11 11 * 12 = 132
13 - 15 14 14 14 * 17 = 238
16 - 18 17 17 17 * 9 = 153
Total 50 610
b) To calculate an estimate for the mean, we use the formula:
Mean = Sum of (fx) / Total Number of Packets
Mean = 610 / 50
Mean ≈ 12.2
Therefore, the estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.
To know more about mean here
https://brainly.com/question/1136789
#SPJ2
Please help.
Algebra.
Answers
What is the solution to the following system of linear equations?
Y=-31-9
2x + 3y = -13
A. (-3,-2)
B. (-3,0)
C. (2,3)
D. (-2,-3)
Answers
Answer:
x=107/2, y=-40. (107/2, -40).
Step-by-step explanation:
y=-31-9=-40
2x+3(-40)=-13
2x-120=-13
2x=-13+120
2x=107
x=107/2
plsssss help me its due in 5 minss i beg.
Answers
Answer:
15.13
Step-by-step explanation:
To find diameter, divide circumference by pi or 3.14
I'm going to change the fraction to a decimal, so 47.5
47.5/3.14 = 15.1273885
Round to nearest hundredth gives you 15.13
Pls help me with this.
Answers
Find the absolute value of -4 3/2 pls help
Worth 100 points..?
Answers
Answer:
4 2/3
Step-by-step explanation:
Any negatives in absolute value signs can be turned positive because it is the same distance from 0 in the number line. (right or left, but in this case, the distance is ALWAYS positive)
Answer: -11/2
Step-by-step explanation:
what are three types of sillicones
Answers
Answer:
Silicone types in common use in the industry include:
High Modulus.
Low modulus.
Neutral cure.
Acetoxy cure.
Hope u won't forget to mark brainiest
have a good day!
1. Find the value of x.
76°
(3x-1)
PLEASE HELP ,
show work
Answers
Step-by-step explanation:
Divide each term in 3x = 1 by 3
3x/3 = 1/3
cancel the common factor of 3
x = 1/3
decimal form
0.3
Padma buys a coat for $32.95 and a pair of shoes for $16.45. She is charged 5% sales tax.
What is the total cost of Padma’s purchases?
A. $47.81
B. $51.87
C. $53.46
D. $57.92
Answers
A man is 32 years older than his son. Ten years ago he was three times as old as his son. find the present age of each?
Answers
Area of a Parallelogram
Answers
Answer:
P=28
Step-by-step explanation:
a=bh
24= 12x
24 divided by 12=2
12 +2+12+2= 28