Answer:
a = 7 and c = 12
Step-by-step explanation:
Set up 2 equations and use substitution:
4a + 2c = 52
12a + 4c = 132
In the first equation, c = 26 - 2a
We can plug that into the second equation to solve for a.
12a + 4(26 - 2a) = 132
a = 7
Plug a back in to either original equation to solve for c:
4(7) + 2c = 52
c = 12
Which of the following is equal to the expression below?
A.
B.
C.
D.
Answer: I think it might be B. Sorry if incorrect
Step-by-step explanation:
Colton has 888 comedy movies, 666 action movies, 555 fantasy movies, and 111 drama movie on his list of favorite movies. For every 555 movies on the list, there are 222 \_\_\_\_____\_, \_, \_, \_ movies.
Answer: Comedy
Step-by-step explanation:
Find out the percentages of each of the movies. First find the total quantity.
= 888 + 666 + 555 + 111
= 2,220 movies
Comedy = 888/2,220 * 100% = 40%
Action = 666 / 2,220 * 100% = 30%
Fantasy = 555/2,220 * 100% = 25%
Drama = 111/ 2,220 * 100% = 5%
222 movies out of 555 is:
= 222 / 555 * 100%
= 40%
222 movies out of 555 movies will therefore be comedy.
Answer:
222/555 are comedy
A small box measures 6 in. by 4 in. by 3 4 3 4 in. high. Find the volume of the box.
Answer:
Step-by-step explanation:
6*4*3434=24*3434=82416
Write these numbers in size order start with the smallest
7/9
8/11
0.79
84%
4/5
Find x (I have a picture of the problem)
Answer:
well, am confidnet that it is 4
Step-by-step explanation:
HELP ASAP PLEASE! I need to write an equation in point-slope form of the line that passes through the points below
Step-by-step explanation:
step 1. pick one of the points: (-2, 5)
step 2. calculate the slope of the points (-2, 5) and (1, -1). m = (-1 - 5)/(1 - (-2)) = -6/3 = -2
step 3. plug them in: y - y1 = m(x - x1) = y - 5 = -2(x - (-2)).
Given that the triangles are similar, find the value of x. Find the length of NR.
S
T
40
60
R
2x-2
8
N
M M
X
NR =
Given:
Figure of similar triangles.
To find:
The value of x and the measure of NR.
Solution:
In triangle RST and RMN,
[tex]\angle SRT\cong \angle MRN[/tex] (Vertically opposite angles)
[tex]\angle RST\cong \angle RMN[/tex] (Alternate interior angles)
[tex]\Delta RST\sim \Delta RMN[/tex] (By AA property of similarity)
We know that, corresponding sides of similar triangles are proportional.
[tex]\dfrac{RS}{RM}=\dfrac{RT}{RN}[/tex]
[tex]\dfrac{40}{8}=\dfrac{60}{2x-2}[/tex]
[tex]5=\dfrac{60}{2x-2}[/tex]
[tex]2x-2=\dfrac{60}{5}[/tex]
On further simplification, we get
[tex]2x=12+2[/tex]
[tex]x=\dfrac{14}{2}[/tex]
[tex]x=7[/tex]
The value of x is 7.
Now,
[tex]NR=2x-2[/tex]
[tex]NR=2(7)-2[/tex]
[tex]NR=14-2[/tex]
[tex]NR=12[/tex]
Therefore, the value of x is 7 and the measure of NR is 12 units.
HEY WEEBS CMERE WE NEED TO HAVE A GATHERING WHOOOOOOOOOOOOO
Answer:
Hello
Step-by-step explanation:
Sixty percent, or 12, of the students in Alex's class are going to the movies. 2/3, or 14, of the students in Mary's class are going to the movies. Which class has more students? Justify your answer using equations.
Answer:
Mary's class.
Step-by-step explanation:
One way to do this is to figure out how many students are in Alex's class and how many students are in Mary's class.
60% of Alex's class is 12 students
[tex]\frac{12*100}{60}[/tex] = [tex]\frac{1200}{60}[/tex]= 20 students
[tex]\frac{2}{3}[/tex] or 66.66% (repeating) of Mary's class is 14 students
[tex]\frac{14*100}{66.66}[/tex] = [tex]\frac{1400}{66.66}[/tex] = 21 students
(^^66.66 repeating)
Mary's class has more students than Alex's class.
What do all of the numbers in the box below have in common 60% 0.57 0.9 120%
Answer:
First of all, the numbers are all positive numbers
They can all be divided by the number 3
They are all rational numbers, this means that they can be expressed as a ratio of two numbers
find the product of 3.5 and 0.22
Answer: 0.77
Step-by-step explanation:
[tex]3.5 \times 0.22 = 0.77[/tex]
Just multiply the two numbers together.
If you take out a loan for $400.00 at a rate of 8% simple interest and pay it off over 1 year, what will be your monthly payment? You will pay _____ a month.
10 points, please answer.
Answer:
$36 a month
Step-by-step explanation:
400÷0.08=32
400+32=$432
432÷12=$36
Write an equivalent ratio described in the situation below. The ratio of boys to girls is 5/2
Which set of angle measures can be used to form a triangle ? A : 40 , 60 , 85 ,, B : 45 , 60 , 60 , C : 30 , 60 , 90 , D : 45 , 90 , 90
Answer:
D)45,90 90 this is the answer
Answer:
C) 30, 60, 90
Step-by-step explanation:
all three angles must add up to 180
Soren's favorite cereal is on sale. A 20-ounce box costs $4.59. A smaller, 12-ounce box costs $2.52. Which one costs less? I alr know which one costs less I just wanna know how many cents it is per ounce.
I think the answer is 5 21 smaller.
I Hope this is the right answer to you! ^_^
The width of a rectangle is five more than two times the length. The perimeter of the rectangle is 106 inches. What are the dimensions of the rectangle?
-
The first three terms of a geometric sequence are as follows.
2, 10, 50
Find the next two terms of this sequence.
Answer:
250, 1250
Step-by-step explanation:
Since 10/2 = 50/ 10 = 5, the common ratio = 5 So the next term in the sequence is found by multiplying the last term by 5.
Therefore, 50 x 5 = 250 and 250 x 5 = 1250. So, the next two terms in your sequence are 250 and 1250
A tent that initially sold for $68.00 is on sale for 21% off. What is the sale price of the tent?
a. $41.28
b. $47.00
c. $47.00
d. $323.81
Answer:
Hey!
Try this!
Take the original price.
Divide the original price by 5.
Alternatively, divide the original price by 100 and multiply it by 20.
Subtract this new number from the original one.
The number you calculated is the discounted value.
Enjoy your savings!
Answer:
Step-by-step explanation:
100-21 gives you 79 so 68.00- .79, however, that gives you 53.72
can you slove any one question
Answer:
Step-by-step explanation:
I'm not sure how to solve the first one, but I'll try to simplify sqrt3-1/sqrt3+1. I simplified it and I got 2-sqrt3. Does that help?
For question 2, I got -0.251.
Answer:
1) [tex]\frac{\sqrt{3}-1 }{\sqrt{3}+1}=\frac{(\sqrt{3}-1)^{2} }{(\sqrt{3}+1)(\sqrt{3}-1) }=\frac{4-2\sqrt{3} }{3-1}=\frac{4-2\sqrt{3} }{2}=2-\sqrt{3}[/tex]
but [tex]\frac{\sqrt{3}-1 }{\sqrt{3}+1 }=a+b\sqrt{3}[/tex]
=> a = 2
b = -1
2) [tex]\frac{\sqrt{10}-\sqrt{15} }{2\sqrt{2} }=\frac{\sqrt{20}-\sqrt{30} }{4}=\frac{2\sqrt{5}-\sqrt{30} }{4}=-0.251[/tex]
Step-by-step explanation:
The enrollment at a university increased from 1,000 students to 6,000 students over a 6-year period. What was the percent increase in enrollment over that time period?
Answer: 500%
Step-by-step explanation:
The percent increase is calculated as:
= (New number of students - Old number of students) / Old number of students * 100%
= (6,000 - 1,000) / 1,000 * 100%
= 5 * 100%
= 500%
Write an equation for the following description.
y is nine times the value of x.
Answer: y=9x
Step-by-step explanation:
Answer:
y = 9x
Step-by-step explanation:
Have a great day
WILL MARK BRAINLIEST! PLZ ANSWER!
Use the Pythagorean Theorem to find the value of x. Round answers to the nearest tenth.
Answer: 17.5
Step-by-step explanation:
[tex]a^2+b^2=c^2\\9^2+15^2=c^2\\81+225=c^2\\c=17.5[/tex]
Answer:
B) x=17.5
Step-by-step explanation:
9^2+15^2=x^2
x^2=81+225=306
x=17.5
anyone mind helping me out ?
Answer:
18/3
Step-by-step explanation:
6x3=18
Find the missing length in the trapezoid and explain how to get it
Answer:
10
Step-by-step explanation:
Use Pythagorean theorem,
hypotenuse² = 8² + 6²
= 64 + 36
= 100
hypotenuse = √100 = √(10*10)
Hypotenuse = 10
PLZ HELP WITH THESE AND FAST!!!!!!!!!!!!
Answer:
(11+4)/3*square root of 64=40
Step-by-step explanation:
11+4=15
15/3=5
the square root of 64 is 8
5*8=40.
FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!!
Answer:
-9 1/4
Step-by-step explanation:
PLEASE HELP ME WITH MARK AS BRAINLIEST
Answer: 12
Step-by-step explanation:
I don’t know if I’m right but I’m Sure it’s 12
What is the remainder of x^4-6x^3-10x^2+20x+15
divided by (x + 2)
0-1
0-49
O 15
0 -17
Answer:
0 - 1
Step-by-step explanation:
U can do by simple division method to get the answer
Erin buys a bag of peanuts that weighs 3/4 of a pound later that week they the bag is two-thirds full how much does a bag oftwo-thirds full how much does a bag of peanuts weigh now
-4+2(5k-6)=-3k-39
need it with the steps