Solve for a in the problem:
-3(9a+2)=129
Answers
Answer: a = -5
Step-by-step explanation:
-3 (9a+2)=129
-27a -6 = 129
-27a = 129+6
-27a = 135
a = -135/27
Answer:
a= -5
Step-by-step explanation:
To solve the equation, we want to find out what a is. In order to do this, we have to get a by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.
-3(9a+2)=129
-3 is being multiplied by 9a+2. The opposite of multiplication is division, so divide both sides by -3.
-3(9a+2)/-3=129/-3
9a+2=129/-3
9a+2=-43
2 is being added on to 9a. The opposite of addition is subtraction, so subtract 2 from both sides.
9a+2-2= -43-2
9a= -43-2
9a= -45
a is being multiplied by 9. The opposite of multiplication is division, so divide both sides by 9.
9a/9= -45/9
a= -45/9
a=-5
Related Questions
FILL IN ALL BLANKS, NEED ANSWER ASAP. 8TH GRADE MATH
Answers
Answer:
x int. = 6, y int. = 9
Step-by-step explanation:
Substitute 0 for y to get the x-intercept and 0 for x to get the y-intercept
I hope this helps :)
If x and y vary directly and y is 6 when x is 8, find y when x is 12.
Answers
Answer:
If x and y vary directly and y is 6 when x is 8, y is 9 when x is 12.
Step-by-step explanation:
In the given problem, it is known that when x is 8, y is 6, so the constant of proportionality in this case is k = y/x = 6/8 = 3/4. This means that the relationship between x and y can be written as y = (3/4)x.
To find the value of y when x is 12, we can plug this value into the equation to get y = (3/4) * 12 = 9. Therefore, if x and y vary directly and y is 6 when x is 8, y is 9 when x is 12.
Answer:
y is 9 when x is 12
Step-by-step explanation:
the ratio of x to y is 4:3
The triangle is rotated 90° clockwise around the point (0,0).
Answers
Answer:
The answer is: still (0,0) the answer does not change if it is still both zeroes.
Step-by-step explanation:
90 degrees clockwise rotation
Mapping rule: (x, y) ⇒ (y, -x) Switch the coordinate numbers and turn the y coordinate into negative.
EXAMPLE: (4, 1) ⇒ (1, -4)
Please consider brainliest
Use the spinner to find the theoretical probability of the event.
The theoretical probability of spinning a 1 is
Answers
Answer:
3/8
Step-by-step explanation:
There are 8 options, are 3 of them are ones. This means there is a 3 in 8, or 3/8 chance of spinning a one.
PLS HURRY Which of the following number sentences is an example of the associative property? Select all that apply.
Answers
Answer: 1st and 3rd options.
Step-by-step explanation:
The associative property is ax(bxc)=(axb)xc
So the first option is merely moving the parentheses around. This is associative.
The second option is distributive. Do not pick this option.
The 3rd option is also moving parentheses around. This is associative.
The fourth option is identity property of multiplication (anything x 1 is iteself). Don't pick this option.
Answer:
1st and 3rd ones
PLEASE hurry, Thanks!
Answers
Answer:Min:4
Q1:6
Med:9.5
Q3:12.5
Max:17
Step-by-step explanation:
B = 25 + .05M
20 minutes a day for 30 days = 600 minutes per month
A(600) = 40+.1(100) = $50
B(600) = 25 + .05(100) = $30
Plan B is less expensive
40+.1(M-500)= 25+.05M
40-25- .1(500) = .05-.1M
.05M = 35
M= 35/.05 = 700 minutes will have the same cost under plan A or B
40+.1(200) = $60 under plan A
25+.05(700) = $60 under plan B
A coach calculated the mean and the mode of the number of points scored by 6 players.
• mean: 7 points
mode: 8 points
How many points did player 5 score?
Answers
Because 8+8+8+6+7+5=42
Then divide that by 6 to get the mean - so 42/6=7 so that’s the correct mean
Explanation:
Mean = average
Equation: total points scored/total players
Mean=7+8+6+8+?+8/6
The mean is given: 7
So plug it in:
7=(7+8+6+8+?+8)/6
Factor to solve:
Add all the numbers together to leave just the missing number (?)
7=(37+?)/6
To get rid of the 6 multiply it over to the other side
6x7=37+?
42=37+?
Now subtract the 37 to the other side to find the missing number (?)
42-37=?
5=?
Now let’s check:
7+8+6+8+(5)+8=42
Add:
42
Now divide by 6
42/6=
7
Is 7 the mean they gave us? Yup!
So player 5 scored 5 points
A tank containing 35 gallons of water is leaking at a rate of ¼ gallon per minute. The expression to represent this is 35 - ¼m. How many gallons are left after 12 minutes?
Answers
Answer:
25 gallons
Step-by-step explanation:
I don’t get it, what am I supposed to be multiplying!?!
Answers
Answer: 5400
Step-by-step explanation: image attached
Answer:
5400
Step-by-step explanation:
we need to calculate the area of big box (prism).
volume = 4 1/2 X 5 X 3 3/4
= 84.375 in³.
volume of small cube = 1/4 X 1/4 X 1/4
= 0.015625 in³.
now we need to find how many of the small ones go into the big one.
84.375/0.015625
= 5400.
help me on this topic pls
Answers
Answer:
91
Step-by-step explanation:
There is a rule that says that 129 = 38 + x
so x = 129 - 38
x = 91
Answer:
x = 91.
Step-by-step explanation:
129 = x + 38
First, we can subtract 38 from both sides to get:
91 = x
So the solution is x = 91.
The base of this pyramid is a rectangle. How many congruent faces does this pyramid have?
The pyramid has 4 congruent faces.
The pyramid has 5 congruent faces.
The pyramid has 1 pair of congruent faces.
The pyramid has 2 pairs of congruent faces.
Answers
Answer: The Pyramid has 2 pairs of congruent faces
Step-by-step explanation:
The explanation of congruent is the face has the same shape and same size. On rectangle pyramid, the height triangle are 2 same faces and 2 same faces, so it has 2 pairs of congruent faces
what is 490 times 6896
Answers
Answer: 3379040
Hello drumheller. You might remember me from calling me inappropriate names. remember Bellabear? Yea, that's me. :)
You could've easily pulled up a calculator and typed it in on your divice.
Identify the coefficient in the expression 6-3x+2. Any and all help is appreciated I will give brainilist (sorry for the spelling) to the first person to answer.
Answers
slope 2
.........................................................
screenshot 1: question
screenshot 2: answer options
thx
Answers
Answer:
A/m=-2. since x goes up by 2 on the table, y decreases by 4 on the table, but if the next part of x on the table was 6, then y would be -2.
what percent of 4c is each expression? 0.2c
Answers
if we take 4c to be the 100%, what is 0.2c off of it in percentage?
\(\begin{array}{ccll} a&b\\ \cline{1-2} 4c & 100\\ 0.2c& x \end{array} \implies \cfrac{4c}{0.2c}~~=~~\cfrac{100}{x}\implies \cfrac{4}{0.2}~~ = ~~\cfrac{100}{x} \\\\\\ 4x=20\implies x=\cfrac{20}{4}\implies x=5\)
Please help i’ll give brainliest!
For which set of data are the median and mode the same number?
A. 4, 5, 7, 7, 8, 10
B. 3, 5, 6, 8, 8, 9
C. 5, 5, 6, 8, 9, 10
D. 4, 5, 7, 8, 9, 9
Answers
Answer: A
Step-by-step explanation:
median: 7+7=14
14/2=7✅
mode: 7 shows up the most (twice)
given term 8 is equal to 4 and term 12 is equal to -2. Find the first three terms of this arithemetic sequence
Answers
Answer:-23
Step-by-step explanation:
Mr. Jensen bought 2 2/3 gallons of gasoline yesterday. Today he bought 3 1/2 more gallons. How many total gallons of gasoline has he bought?
A. 5 3/5 gallons
B. 5 3/6 gallons
C. 6 1/6 gallons
D. 5 1/6 gallons
Please give an explanation to the answer, and no out of context or absurd answers, thank you!
Answers
Answer:
The answer is C
Step-by-step explanation:
2 2/3 + 3 1/2
first, add the whole numbers
(2+3)+( 2/3+1/2)
=5 and then you multiply each fraction by the other denominators
2/3 x 2 and 1/2 x 3
=5 4/6 3/6
Now add each fraction because it is the same denominator
4+3=7 so it is 7/6 now to make it a mixed fraction
7/6=1 1/6
5 +1=6
6+1/6 = 6 1/6
Hope this helps
What is the area of the circle? Approximate using pi equals 22 over 7.
a circle with radius labeled 35 yards
110 square yards
220 square yards
3,850 square yards
15,400 square yards
Answers
ANSWERRRR:
the answer is 15,400
bob went to the store he bought 2 pairs of jeans and eight pairs of socks bob had 100 in his wallet when he enter the store if the jeans cost him $25.98 a pair and the socks were 4 pair for $20 how much money did he have in his wallet before he left the store
A) 46.04
B) 28.04
C) 48.04
D)8.04
Answers
The answer is D. This is because it is asking what he had left when leaving the store.
Help pls and show your work
Answers
Median:number with a value in the middle
Mode: most common number
Range: the difference in the numbers
Let x be the mean x=(0+3+3+4+4+4+6+8+8+9+10+10+
10+12+14)/15
=x=105/7
x=7
Median can be found by writing every number in order from least to greatest than finding the one in the middle
the median for this set of data is 8
Mode is 4 and 10 since they occur the most
And for range subtract the highest number by the lowest
14-0=0
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answers
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
A cat that knows the shake command offers one of its front paws to shake. The table shows the number of times the cat offered each of its paws when asked to shake.
Left Paw 37
Right Paw 11
What is the experimental probability that the cat will offer its left paw when asked to shake? (Please show work, I need help ASAP!)
Answers
Answer:
I got you! Go to mathpapa.com. I don't know how specific your math is, so this will guarantee you an A!
Step-by-step explanation:
Math papa is the way to go!
Pop out the papa and your sure to make it snow with your good grades!!!!
so i need to drag the tiles and get the answer :)
Answers
Answer:
\( - 2 \frac{3}{5} \div \frac{3}{5} = - \frac{13}{5} \times \frac{5}{3} = - \frac{13}{3} = - 4 \frac{1}{3} \)
\(2 \frac{1}{4} \div \frac{3}{4} = \frac{9}{4} \times \frac{4}{3} = 3\)
\( - \frac{10}{17} \div ( - \frac{15}{17} ) =\)
\( - \frac{10}{17} \times ( - \frac{17}{15} ) = \frac{2}{3} \)
\( 2.75 \div ( - 2.2) = \)
\( 2 \frac{3}{4} \div ( - 2 \frac{1}{5} ) = \)
\( \frac{11}{4} \div ( - \frac{11}{5} ) = \frac{11}{4} \times ( - \frac{5}{11} ) = - \frac{5}{4} = - 1.25\)
3 ⇒ 2 (1/4) / (3/4)
-1.25 ⇒ 2.75 / (-2.2)
2/3 ⇒ (-10/17) / (-15/17)
-4 1/3 ⇒ -2 (3/5) / (3/5)
Hope my answer helps you✌️
Mark BRAINLIEST
A bouquet has 9 red roses 12 white roses and 2 sunflower. Using the ratio of white roses to total flowers, how many white roses would you have if you had 253 total flowers?
Answers
Answer:
132 white roses
Step-by-step explanation:
9 + 12 + 2 = 23
12 to 23
253 ÷ 23 = 11
11 × 12 = 132
If there are 253 total flowers then there would be 132 white roses
What is the equation of the line shown in this graph?
Answers
Add 2 1/2+(−1/3) . Write your answer as a mixed number in simplest form.
Answers
Answer:
2 2/3
Step-by-step explanation:
Answer:
2.16
Step-by-step explanation:
PLS HELP DUE TONIGHT
whats the missing measure
Answers
Answer:
The missing measurement is 8
Step-by-step explanation:
Which statement is true about the relationship between the amount of plant food remaining and the number of days? Can you help me with this problem
Answers
Answer:
I think you're missing something
Step-by-step explanation:
Can you please help me?
Answers
3(8)^2=3x64