Answer:
n = -7
Step-by-step explanation:
Solve for n:
-3 n - 5 = 16
Hint: | Isolate terms with n to the left-hand side.
Add 5 to both sides:
(5 - 5) - 3 n = 5 + 16
Hint: | Look for the difference of two identical terms.
5 - 5 = 0:
-3 n = 16 + 5
Hint: | Evaluate 16 + 5.
16 + 5 = 21:
-3 n = 21
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of -3 n = 21 by -3:
(-3 n)/(-3) = 21/(-3)
Hint: | Any nonzero number divided by itself is one.
(-3)/(-3) = 1:
n = 21/(-3)
Hint: | Reduce 21/(-3) to lowest terms. Start by finding the GCD of 21 and -3.
The gcd of 21 and -3 is 3, so 21/(-3) = (3×7)/(3 (-1)) = 3/3×7/(-1) = 7/(-1):
n = 7/(-1)
Hint: | Simplify the sign of 7/(-1).
Multiply numerator and denominator of 7/(-1) by -1:
Answer: n = -7
Answer:
n = -7
Step-by-step explanation:
Add 5 to each side, so it now looks like this: -3n = 21Divide each side by -3 to cancel out the -3 next to n. It should now look like this: n = -7I hope this helps!
Tim's mom filled the gas tank in her SUV and spent $72.00 for 22.5 gallons of gasoline .what is the constant of proportionality that relates the cost in dollars ,y, to the number of gallons of gas,x
A.$0.31 per gallon
B.$3.13 per gallon
C.$3.20 per gallon
D.$0.32 per gallon
Answer:
itś c
Step-by-step explanation: because you divide 72.00/22.5= 3.2
Write the expression
−
3
x
2
+
2
y
2
+
5
x
y
−
2
y
+
5
x
2
−
3
y
2
in simplest form.
Answer:
2x^2-y^2+5xy-2y
Step-by-step explanation:
This is for 10 points! Plz
Answer:
...
Step-by-step explanation:
Table e
5:2
10:4
20:8
Table F
180:5
36:1
216:6
What conclusion can be made based on this multiplication problem?
7x3=21
Seven is 3 times the size of 21.
Seven is 21 times the size of 3.
O Twenty-one is 7 times the size of 7.
O Twenty-one is 7 times the size of 3.
Answer:
I believe it is twenty-one is 7 times the size of 3
Step-by-step explanation:
Give each rate in miles per hour. Round to the nearest tenth.
Dhruv jogs 8 feet per second.
I don’t know the answer please help.
The question requires changing feet per second into miles per hour
The unit rate in miles per hour is 5.5 miles per hour
8 feet = 0.00151515 miles
1 second = 0.000277778 hour
unit rate in miles per hour = number of miles / number of hours
= 0.00151515 mile / 0.000277778 hour
= 5.4545356363714 miles per hour
Approximately, 5.5 miles per hour to the nearest tenth
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what's the number of electron for Fe?
Answer:
The answer 26, given that it’s atomic number is 26, and the atomic number is equal to the number of protons, which is equal to the number of electrons. Assuming that it has a neutral charge, the answer would be 26.
Step-by-step explanation:
1 3/5 plus 2 1/15 as a mixed number. Plz answer
Answer:
4
Step-by-step explanation:
Answer: 3 4/5
Step-by-step explanation:
Hope this helps, mind giving me the brainliest? :)
Which of the following statements are always true about matrices?
Two matrices are equal if they are both square matrices.
Two matrices with different sizes cannot be equal.
A 2 x 3 matrix has 2 rows and 3 columns.
Two matrices are equal if their corresponding elements are equal.
Answer:
B, C, D
Step-by-step explanation:
edge 2023
what does figure number 4 equal
Answer:
12
Step-by-step explanation:
bc at the bottom them r halfs so all the have to do its put them to together than it would be 12
Round 624.914 to the nearest whole number.
3х^2 - 7х + 2 factor the expression
Answer:
(3x-1)(x-2)
Step-by-step explanation:
3x²-7x+2
3x²-6x-x+2
(3x²-6x)-(x-2)
3x(x-2)-(x-2)
(3x-1)(x-2)
Estimate 8% of 40 show your thinking
Answer:
3.2
Step-by-step explanation:
Simplify the expression.
Just divide the numbers.
Jorge read that 0.72 of his favorite cereal
was whole grain wheat. Find what fraction
of his cereal is whole grain wheat. Write in
simplest form.
Answer:
72%
Hope this helps
Find the difference.
50 - (-27)
The new cookie recipe has 1 1/2 cups of flour for every 1/2 cup of chocolate chips.
Enter the slope.
Answer:
3
Step-by-step explanation:
1 1/2 cups for every 1/2 cup
im not exactly sure about the slope but i know the rate is 1:3
so i think they might be the same thing
HEY CAN YALL ANSWER DIS PLS!!!
Answer:
a
Step-by-step explanation:
i just multiplied
Answer:
A. $63.60
Step-by-step explanation:
Multiply $7.95 x 8
This equals $63.60
Identify the factors of the expression 6y(x+z).
Answer:
6, y, and (x+z)
Step-by-step explanation:
A factor is something in the expression that is multiplied by something else. In this expression 6 and y are getting multiplied by each other and (x+z) are getting multiplied by 6y.
Kelsey wants to buy some new shirts at her favorite store. Each shirt costs $10 and she also wants to get a pair of shoes for $25.write an inequality. That she could use to figure out how many shirts she can buy if the most she can spend is $55 and solve
Answer:
10x + 25 less than or equal to (the sign) $55
Step-by-step explanation:
Answer:
The inequality is 10x + 25 [tex]\geq[/tex] 55
Step-by-step explanation:
This would be the possible inequality, because it says that "EACH" shirt costs 10$ meaning that Kelsey may buy multiple, which is why you would want to put 10x (for every shirt she buys they each cost 10 dollars) and PLUS she wants a pair of sneakers, so add 25 $
She has only 55$ to spend, so here MAXIMUM amount she can spend is 55$ which means, she can only buy whatever she wants for 55$ or lower.
What is the position of C on the number line below?
Write your answer as a fraction or mixed number.
Answer:
2/5
Step-by-step explanation:
there are 5 lines starting at point 1 and ending at 2. point c is on the second line which makes it 2/5ths
The position of C on the number line below is 7/5 or 1 2/5.
What is the number line?The number line is a horizontal line where all the integers are placed at equal intervals. The number line is extended to infinity on both sides.
Also, the line segment between two integers also divided into subparts to represent the rational number.
here given in the number line there are two integers 1 and 2 in which point C is situated.
The line segment between 1 and 2 is divided into 5 parts.
every subpart in line segment between 1 and 2 will be= the length of the subpart / total number of division
= (2-1)/5= 1/5
C point is present at a distance of 2 subparts from integer 1.
So the position of C will be = 1+(2)(1/5)= 1+(2/5)= 7/5 or 1 2/5
Therefore The position of C on the number line below is 7/5 or 1 2/5.
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Thomas wants to put a fence around a rectangular garden that is 12 feet long and 7 feet wide.
How much fencing he will need?
Answer:
84 feet
Step-by-step explanation:
he will need 84 ft to cover the entire garden
Answer:
38 ft of fencing
Step-by-step explanation:
The perimeter of a rectangle is 2L + 2W, where L and W are the length and width, respectively. The dimensions of the garden are given, 7 x 12 ft.
The amount of fencing needed is 2(7) + 2(12) = 14 + 24 = 38 ft of fencing
6.25% of 1200 is what number
Answer:
75
Step-by-step explanation:
Answer:
Step-by-step explanation:
6.25/100*1200
=75
There are 4 carriages connected to a train that is 52 meters long. If there
were 8 carriages connected to the train, how long would it be?
Who can find the area
please help!! giving 20 points ! What is the area of this rectangle?
Answer:
C
Lucky guess if this is wrong i am truly sorry.
Shontelle has soccer practice on Thursday evening. She has a half hour before practice to work on her math homework and talk to her friends. She has 20 math skill-work questions for homework, and she wants to complete them before talking with her friends. If she can solve three math problems in four minutes when she really focuses with no distractions, how many minutes will Shontelle have left after completing her math homework to talk to her friends.
Answer:
3 1/3 minutes or 3 minutes 20 seconds
Step-by-step explanation:
We can use ratios to see how long it will take her to complete her homework
3 problems 20 problems
----------------- = --------------
4 minutes x minutes
Using cross products
3x = 4*20
3x= 80
Divide by 3
x = 80/3
x =26 2/3 minutes
She has 30 minutes
30 -26 2/3 = 3 1/3 minutes
3 minutes 20 seconds
I need some answers please a few is fine
Answer:
a) 1
b) 7
c) 12
d) 3
e) 4
f) 10
g) 25
h) 15
solve for x help thx
Answer:
x = 7
Step-by-step explanation:
Given
3(2x - 9) = 15 ( divide both sides by 3 )
2x - 9 = 5 ( add 9 to both sides )
2x = 14 ( divide both sides by 2 )
x = 7
type the slope intercept equation of the line that passes through the points (5,2) and (4,1)
Answer:
y = x - 3
Step-by-step explanation:
Answer:
Y= x-3
Step-by-step explanation:
The distance from our y values is -1.
The distance from our x values is -1.
Rise/ Run = Y/X
-1/-1 = 1 or 1/1
You would rise 1 and run 1!
You can use this strategy if you're using graph paper to eventually get the y intercept which is -3.
Hope this helps! :)
Sombody help please quickly!!
Answer:
38%
Step-by-step explanation:
Change [tex]\frac{7}{25}[/tex] to a percent, that is
[tex]\frac{7}{25}[/tex] × 100% = 0.28 × 100% = 28%
Then 34% + 28% = 62% ← go by bus or car, leaving
100% - 62% = 38% walking to school
Figure ABCD is a parallelogram. Is triangle ADB congruent to triangle CBD? Show or explain your reasoning
Answer:
yes it's congruent.
Step-by-step explanation:
in a parellelogram, all sides and angles are equal.
ΔADB is congruent to ΔCBD.
The reasoning is given below.
What is a parallelogram?A parallelogram is a quadrilateral that has two pairs of parallel sides.
In a parallelogram, opposite sides and angles are equal.
The adjacent angles add up to 180 degrees.
We have,
A parallelogram ABCD.
This means,
AD is parallel to BC
AB is parallel to CD
∠A = ∠C
BD is the diagonal of the parallelogram.
Now,
ΔADB and ΔCBD
AB = CD ( given )
∠A = ∠C (given )
∠ADB = ∠CBD ( given )
∠ABD = ∠BDC ( alternate angles )
ΔADB ≈ ΔCBD
Thus,
ΔADB is congruent to ΔCBD.
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