Answers
Answer:
a= -4
Step-by-step explanation:
subtract 4a from both sides
add 15 to both sides
divide both sides by -3
(order of operations)
Related Questions
ANSWER ASAP !! NEED HELP ASAP
Answers
Answer:
130
Step-by-step explanation:
The two angles add up to be 180 degrees, so you could find the value of the second angle to be 110 degrees, but it is asking for the x value so you would choose 130 since when you subtract 20 from 130 you get 110.
Sara halves it and gets an answer of 34.3. What was the original number?
please help me im doing hegarty maths and I dont know what is this answer please help me
Answers
because 34.3 times 2 is that or if u divide 68.6 by 2 u get 34.3
The ratio of women to men at a college is 9 to 8. If there are 5,644 students in the school, how many more women are there than men?
Answers
Answer:
78
Step-by-step explanation:
5,644 divided by 9 = 627
5,644 divided by 8 = 705
705 - 627 = 78
Hope this helps
mark brainliest please
arrange the following from least to greatest (integers)
44,16,-8 and -20,8,0,-3
Answers
Answer:
-20, -8, -3, 0, 16, 44
Step-by-step explanation:
A scientist was interested in studying if students beliefs about illegal drug use change as they go through college. The scientist randomly selected 104 students and asked them before they entered college if they thought that illegal drug use was wrong or o.k. Four years later, the same 104 students were asked if thought that illegal drug use was wrong or o.k. The scientist decided to perform McNemar's test. The data is below. What is the proportion of students that thought that is was wrong after college?
Answers
Answer:
gang gang
Step-by-step explanation:
Nigel wants to average 85% on his four tests. He got 77%, 89%, 78% on his first three tests. What does he need to get on his last test to average 85%?
Answers
Answer:
He needs to get 96%
Step-by-step explanation:
Add 96 89 77 and 78 together and divide by 4, it should be 85
A segment of length 94 cm has been rotated degrees around a center . What is the length of the rotated segment?
Answers
Answer:
Rotation does not change lengths.
Jen and Brandy are studying soil. They each collected a sample of soil from the front yard of the school and then analyzed its components. Finally, they compared their results and found that they were very different. Their findings are recorded in the chart below.
How should Jen and Brandy proceed?
A.They should discuss their results and try to figure out why they are different.
B. They should ignore the differences in their results and complete their lab report.
C. They should argue about which student is right.
D. They should ask their teacher which set of results are more accurate.
Answers
Answer:
A. They should discuss their results and try to figure out why they are different.
May I have Brainliest once you confirm that it's correct?
Answer:
C
Step-by-step explanation:
use the function below to find f(-2).
f(x)=3^x
Answers
hi
f(x) = 3^(x) so (f-2) = 3^(-2) = 1/ 3² = 1/9
Answer: 1/9
Step-by-step explanation:
Patty is inviting her friends to a party. She has 30 snack bars 45 juice boxed, and she wants to give the same number of each item to each friend.
Answers
Example: 10 friends
30/10= 3 so 3 snack bars
45/10=4.5 so 4 juice boxes
HELP PLEASE PICTURE EXPLAINS EVERYTHING!!!!
Answers
Answer:
(a) Slope of Line 1 = 3
Slope of Line 2 = 3
Slope of Line 3 = -1/3
(b)
Line 1 and Line 2 = Parallel
Line 1 and Line 3 = Perpendicular
Line 2 and Line 3 = Perpendicular
Step-by-step explanation:
Please mark as brainliest! Thanks! Hope this helps!
HELP PRETTY PLEASSSEEE
Answers
Answer: b.) 14
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
The absolute value is always positive and 18-4 =14
I need help on this question can you tell me what the blanks are pls
Answers
Answer:
sorry I wish I can help you
Step-by-step explanation:
two shapes that represent the cross-sections
Answers
Answer:
it's the square and the rectangle
PLEASE HELP ILL GIVE BRAINLIEST
Answers
Answer:
1. x = 66
2. C
3. C. 2000
Step-by-step explanation:
1. The first question is x = 66 because to get rid on the fraction you multiply both sides by 4. This leaves you with x + 2 = 68 (minus 2 on both sides) this gives you x = 66.
2. C. Commutative
3. 2000
Plug in
125 = (5)(.0125)(2000)
125 = 125
Hope this helps ya!!
Find the equation of the linear function represented by the table below in slope-intercept form. x y -1 3 1 1 3 -1 5 -3
Answers
Answer:
y = - x + 2Step-by-step explanation:
Points given:
(-1, 3), (1, 1), (3, -1), (5, -3)Slope-intercept form:
y = mx + bFinding the slope using slope formula and the first two points:
m = (1 - 3)/(1 - (-1)) = -2 / 2 = -1Finding y-intercept using the slope and the first point:
3 = (-1)*(-1) + b3 = 1 + bb = 3 - 1b = 2So the equation is:
y = - x + 2
Find the density of a book with a mass of 24g and a volume of 5cm'.
Solve:
Given:
(24g) (5cm^3)
Answers
Answer:
The answer is 4.8 g/cm³Step-by-step explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question we have
[tex]density = \frac{24}{5} \\ [/tex]
We have the final answer as
4.8 g/cm³Hope this helps you
Answer: 1.2 × 10-7 m3 kg
Step-by-step explanation:
(24g) (5cm^3)=1.2 × 10-7 m3 kg
Note your teacher will grade your response to ensure you receive proper credit for your answer a quadratic equation can be written in vertex form or in standard form
Answers
Answer:
vertex form: y = a(x – h)2 + k, where (h, k) is the vertex
standard form: y = ax^2 + bx + c
Step-by-step explanation:
not certain what the qustion is
What is the slope-intercept equation of the line (easy?)
Brainliest if right
Answers
Answer:
y = 1x + 2
Step-by-step explanation:
did i get it right?
Answer:
[tex]y=\frac{3}{4} x+2[/tex]
Step-by-step explanation:
y=mx+b
We have two points (0,2) and (4,5).
2=m(0)+b --> So b=2
5=4m+2
4m=3
m=[tex]\frac{3}{4}[/tex]
[tex]y=\frac{3}{4} x+2[/tex]
Help Help!!!
will Give uh brainliest
Answers
Answer:
First one: A 4 in 12 chance
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
The coin was flipped 12 times. Out of the 12, Tashi tagye was gotten 4 times. That will be 4/12. Reducing to the lowest tem will get 1/3
Find the slope and y-intercept of the line in each graph.
PLEASE HELP ASAP
Answers
Answer:
slope m = -2, y-intercept b = 1
Step-by-step explanation:
The slope is the change in y over the change in x.
Equation for slope: y2-y1/x2-x1=m
Since they already gave us the two points we just have to decide which one is our y2,y1 and out x2,x1 (which one you chose does not matter). And plug the numbers into the equation and get: -3-1/2-0=m, in this case, m=-4/2 and simplify it into -2. Now we have our slope.
The y-intercept is where the line crosses over the y-axis, and in our case, it is given to us in the (0,1) so our slope is 1.
Hope this helps you
A dressmaker needs to cut 6-inch pieces of ribbon from rolls of ribbon that are 9 feet in length. How many 6-inch pieces can the dressmaker cut from 15 of these rolls of ribbon? Before you try that problem, answer the question below. How many inches of ribbon does the dressmaker have, in total?
Answers
Answer:
Step-by-step explanation:
Answer:
60 pieces
Step-by-step explanation:
What we know:
There are 12 inches in a foot
There are 5 6-feet lengths of ribbon
So, we simply need to multiply.
Since there are 12 inches in a foot, and we only need 6 inches for each one, we can see that she makes 2 pieces for each foot.
Multiply
2*6=12
She makes 12 pieces for each length of ribbon.
Now multiply it by 5
12*5= 60
She can make 60 pieces from 5 of these length of ribbon.
Hope this helps!
what number do these base ten blocks show
Answers
For the month of June, a music supply company is promoting the launch of its electronic music club by offering new members two options for downloading music.
Option #1: Annual club membership at a fee of $125 per year plus an option of prepaying for unlimited music downloads at a rate of $10 per month.
Option #2: Annual club membership at a fee of $50 per year plus an option of prepaying for music downloads at a rate of $1 per song.
You decide to join the electronic music club for one year, but aren’t sure which membership option is best suited for your music downloading needs. Review both options that the music supply company is offering for its new club members. Use the information provided to respond to the following prompts. When necessary, answer in complete sentences and include all calculations.
Write a function that best models the total cost of club membership plus downloads under option #1.
For membership option #1, calculate the total cost for one year of club membership and prepaid unlimited music downloads.
Write a function that best models the total cost of club membership plus downloads under option #2
Calculate the maximum number of music downloads that you will have with one year of club membership under option #2 for the same annual cost of a membership with unlimited downloads.
Over the past year, you downloaded an average of 14 songs per month. Assuming that for the next year, you continue to download music at the same rate per month, which membership option is most cost effective?
Answers
Answer:
six points for all this ? HAHAHAHAHA LFMAO
Step-by-step explanation:
can someone help thank you!
Answers
Answer:
Step-by-step explan
100 % if my grade and giving brainliest if answered correctly please helppp im failing
Answers
Answer:
Hope I'm not too late for this...
(look below)
Step-by-step explanation:
For the first part:
1. b = -1, m = 2
The y-intercept (b) is the value of y when x = 0. In this case, we can see that when x = 0, y = -1 so the y-intercept is -1.
The slope was found using the equation slope (m) = (y2-y1) / (x2-x1) and two points. (Note, you can choose any two points, I just chose the first two.)
(5,9) (-2,-5)
slope = (y2-y1) / (x2-x1)
slope = (-5-9) / (-2-5)
slope = -14/-7
slope = 2
I used the same steps as shown above:
2. b = 2, m = -3
For the second part:
1. y = 2x - 1
2.y = -3x + 2
I basically plugged in the values for m and b into the equation, y = mx + b.
Graphs:
The way to graph a line is to plot at least two points and draw a line through them. You can graph it using either the equation or the table. I used the table since it is much easier to find the points that I need.
Below I have included references to what the graph should look like if you need to check your work.
The one in blue is for the equation y = 2x - 1. This should help you get a visual of what the correct graph looks like.
The one in green is for the equation y = -3x + 2.
I hope this helped!
Guys pls help me im failing my grade and i really need help plsssss and dont do it for the points
Answers
Answer:
simplified: [tex]\frac{3}{5}[/tex]
unsimplified: [tex]\frac{12}{20}[/tex]
Step-by-step explanation:
Since the fractions have the same denominator, all we have to do is subtract the numbers in the numerator:
15 - 3 = 12
The difference of the two fractions is [tex]\frac{12}{20}[/tex]. To simplify this answer, divide both the numerator and the denominator by 4:
12/4 = 3
20/4 = 5
The difference in simplified form is [tex]\frac{3}{5}[/tex].
I hope this helps. :)
I WILL GIVE BRAINLIEST. I NEED ANSWER ASAP.
Answers
I believe it is C :)
sum of numbers 12-111
Answers
Answer:
12-111=-99
Step-by-step explanation:
Can someone please explain how to find the answer? My old teacher didn’t do it this way and I’m lost :/
Answers
Answer:
the triangle means "change in". so triangle x means the change in the x values and triangle y means change in y values so yeah mental calculate the difference