2x + 3y = 13
x - 3y = 2
Answer:
use the 2nd equation to find that x=3y+2 and now plug it into the first equation to get 2(3y+2)+3y=13 distribute to get 6y+4+3y=13, reorganize the equation by adding common integers to become 9y+4=13, Subtract 4 from both sides to get 9y=13-4, or 9y=9, so y=1, plug that into the equation for x to get x=3+2, so y=1 and x=5
Express this as a difference: 7+3 PLEASE HELP
Answer:
Step-by-step explanation:
Use the net as an aid to compute the surface area of the triangular prism.
Answer: [tex]790m^{2}[/tex]
Step-by-step explanation: See image
An Native American tepee is conical tent. Find the number of skins needed to cover a teepee 10ft in diameter and 12ft high. each skin covers 15 sq. feet (use pi=3.14)
Answer:
19 skins
Step-by-step explanation:
Total surface area of the cone = πr(r+l)
r is the radius = 10ft/2 = 5ft
l is the slant height
l^2 = 12^2 + 5^2
l^2 = 144+25
l^2 = 169
l = 13ft
Get the surface area
TSA = 3.14(5)(5+13)
TSA = 15.7*18
TSA = 282.6 ft^2
If each skin covers 15 sq. feet
Number of skin needed = 282.6 /15
Number of skin needed = 18.84
Number of skin needed is approximately 19 skins
A vertical flagpole, AB, has a height of 46m. The points B, C and D lie on level ground, and BCD is a straight line. Point C is 21 m from the base of the flagpole. The angle of elevation of the top of the flagpole from point D is 58
How far apart are points C and D?
Answer:
20 on c and 90 on d cause noth are kinda the same but different at the same time.
Divide. Write your answer as a decimal.
0.459 divided by 0.17 =
Answer:
0.459 divided by 0.17 equals 2.7
Step-by-step explanation:
Answer:
2.7
Step-by-step explanation:
0.459÷0.17=2.7
here is your answer!
Solve for the missing number. x + 2½ = 10
Kim purchased 6 small containers of potato salad and Seth purchased 2 extra
large containers of potato salad. What is the difference in the weights, i
pounds, of Kim's and Seth's purchases?
Show your work.
Answer:
the difference is that the 2 extra LARGE containers weigh bigger than the
6 small ones
Step-by-step explanation:
You start at (5, 8). You move right 3 units. Where do you end?
Answer:
(8, 8)
Step-by-step explanation:
When moving right, you add positive number to the x value
The chords intersect at point U.
A circle is shown. Chords R T and Q S intersect at point U. The length of R U is 12 centimeters, the length of U T is 4 centimeters, the length of U S is y centimeters, and the length of Q U is 8 centimeters.
What is the value of y?
2
4
6
8
Answer:
Its b)6
Step-by-step explanation:
I just did it on edge and got it correct
The value of y is 6 centimeters.
Given that,
The length of RU = 12 centimeters
The length of UT = 4 centimeters
The length of QU = 8 centimeters.
The length of US = y centimeters
What is the intersecting chords theorem?The intersecting chords theorem states that, the product of one whole chords segment and its external segment is equal to the product of the other whole chords segment and its external segment when two chords cross at an exterior point.
According to the intersecting chords theorem,
US x QU = RU x UT
Substitute the values in above formula,
y x 8 = 12 x 4
y = 48/8
y = 6 centimeters,
Hence, the value of y is 6 centimeters.
Learn more about intersecting chords theorem here:
https://brainly.com/question/15298662
#SPJ5
Damian took out a car loan for $10,500 that has a 0% APR for the first 12
months and will be paid off with monthly payments over 3 years. For how
many months will Damian be charged interest?
O A. 12 months
O B. 48 months
C. 36 months
O D. 24 months
24 months is the correct answer
Damian will be charged interest for 24 months.
What is unit conversion?It is defined as the conversion from one quantity unit to another quantity unit followed by the process of division, and multiplication by a conversion factor.
We are given that Damian took out a car loan for $10,500 that has a 0% APR for the first 12 months and will be paid off with monthly payments over 3 years.
We know that;
1 year = 12 months
Using this conversion we get;
3 year = 36 months
It means total number of months in 3 years is 36. For first 24 months the APR is 0%. So, the number of months will Damian be charged interest is
36 - 12 = 24
Therefore, the correct option is D. 24 months
Learn more about the unit conversion here:
brainly.com/question/11543684
#SPJ2
................. plz let only deltaalex answer:) don’t trust anyone on here but them!
Answer:
Step-by-step explanation:
oh law of sines soo sin(A) / a = Sin(B) / b
2a)
here DE = side f then let's find that side with law of sines and plug side f in as 'a' in law of sines , so
Sin(28) / a = Sin(54) / 31 ( where a = f = DE )
can you do the algebra here Emily? or do you want me to show that?
Sin(28) *31 / Sin(54) = a
17.989 =a
18.0 =a (rounded to nearest 10th)
DE = 18.0 m
2b)
find RT where RT = side a
since they give use 2 of the other sides of the triangle we can quickly figure out the S angle. 180 = 71+62+S so S = 47° ( I'm going kinda fast b/c I don't know how much time you have :? )
then Sin(A) /a = Sin(B) / b
Sin(47) / a = Sin(62) / 29
Sin(47) *29 / Sin(62) = a
24.020 = a
RT = 24.0 meters ( rounded to nearest 10th )
2c)
they want us to find ∠X with law of sines soo
I'll just use the letter they give us for variables
Sin(X) / x = Sin(Y ) / y
Sin(X) = x* Sin(y) / y
X = arcSin [ 14 * Sin(108) / 34 ]
X = arcSin [ 0.3916115]
X = 23.0548°
X= 23° ( rounded to nearest degree )
2d)
they ask us to find ∠E
I'll , again, use the letter they give us for variables
Sin(E) / e = Sin( F ) / f
Sin(E) / 18 = Sin(78) / 30
E = arcSin[ 18 * Sin(78) / 30 ]
E = arcSin [ 0.5868856 ]
E = 35.936 °
E = 36 ° ( rounded to nearest degree )
:)
If 48% of a number, n, is 40.32, what is 20% of n?
Answer:
Step-by-step explanation:
48% of n = 0.48n = 40.32
n = 84
20% of n = 0.20*84 = 16.8
Someone answer and explain ill mark brainliest
9.)Jeanne has 3 7/8 yards of fabric. She needs 1 1/4 yards to make a pair of
shorts. How many pairs of shorts can she make?
She can make 3 shorts
Jeanne can make 3 pairs of shorts with 3 7/8 yards of fabric.
What are the ratio and proportion?The ratio is the division of the two numbers.
For example, a/b, where a will be the numerator and b will be the denominator.
Proportion is the relation of a variable with another. It could be direct or inverse.
Given that,
The total amount of fabric = 3 7/8 yards = 31/8 yards.
Amount of fabric needed to make 1 pair of shorts = 1 1/4 = 5/4 yards.
The number of shorts that can be made = 31/8 ÷ 5/4
⇒ 3.1 so it will be 3 because no relevance of decimal shorts.
Hence "Jeanne can make 3 pairs of shorts with 3 7/8 yards of fabric".
For more information about ratio and proportion,
brainly.com/question/26974513
#SPJ2
Brittany has 5 pages of homework to do. If she can finish 1/5 of a page in one hour, how many hours will her homework take?
Answer:
25
Step-by-step explanation:
What is the mean of the data set 85 97 84 88 95 81
Answer:
88.3 (3 is repeating)
Step-by-step explanation:
to calculate the mean of a data set you add together all the numbers and then divide that by the number of numbers there are, sorry if that's confusing
example:
85+97+84+88+95+81=530
530/6=88.3
Answer:
d .88
Step-by-step explanation:
hope this helps
The area of each triangle is 70
The area of the kite is 140
Answer:
Area of each triangle is 70 cm²
The total area of the kite is 140 cm²
Step-by-step explanation:
Since the kite is broken into two congruent triangles, therefore:
Total area of the Kite = 2 × area of each triangle
✔️Area of each triangle = ½*base*height
base = 20 m
height = 7 m
Area of each triangle = ½*20*7 = 70 cm²
✔️Total area of the kite = 2(70) = 140 cm²
How do you solve this problem
Answer:
V=[tex]8y^{15} ft^3[/tex]
Step-by-step explanation:
The volume of a cube is l*w*h, and since l,w,h are all the same multiply [tex]2y^5[/tex] by itself thrice and use exponent rules, which looks like this:
[tex](2y^5)^3\\(2)^3(y^5)^3\\8y^{15}[/tex]
If this helped, a brainliest would be greatly appreciated!
Harry buys a TV priced at £1200 plus 20% VAT. He pays £300 deposit and the balance in ten equal monthly payments.
Calculate each monthly payment
Answer:
114 a month for 10 months
Step-by-step explanation:
20 divided 16 in fraction form (simplist form)
Answer:
1/4
Step-by-step exp
20/16=1.25=1/4
The fraction 20 divided by 16 can be expressed in simplified form as 5/4.
What is 20 divided 16 in fraction form?To simplify the fraction 20 divided by 16, we need to find the greatest common divisor (GCD) of the numerator (20) and the denominator (16) and divide both by that number. Let's break down the steps:
Step 1: Find the GCD
To find the GCD of 20 and 16, we can use the Euclidean algorithm. We start by dividing 20 by 16, which gives us a quotient of 1 and a remainder of 4. We then divide 16 by 4, resulting in a quotient of 4 and no remainder. The last nonzero remainder obtained is 4, so the GCD of 20 and 16 is 4.
Step 2: Divide by the GCD
To simplify the fraction, we divide both the numerator and denominator by the GCD of 4.
20 ÷ 4 = 5
16 ÷ 4 = 4
So, the simplified fraction is 5/4.
Read more about fraction here: https://brainly.com/question/78672
#SPJ6
Find the value of x and y in the diagram below.
30°
A. x=9f2, y=9
B. * = 18, y = 9-3
C. *= 9/3, y = 4.5
D. *- 01/3, y = 313
Please select the best answer from the choices provided
Answer:
C. *=9/3,y=4.5 HOPE IT WILL HELP YOU
Answer: D
Step-by-step explanation: right on edge
Can someone answer and EXPLAIN PLEASE ILL MARK BRAINLIEST
Answer:
A)x^2-x-6
B)2x^2-12x+12
C)x^2-4
Step-by-step explanation:
A) Lets break this problem into portions the first part we trying to distribute is x(x-3)
X times X is X^2 and X times 3 is 3x so x^2-3x
Lets work on the second part
2(x-3)
2 times x =2x and 2 times -3 = -6 so 2x-6
And since you are supposed to add them its 2x-6+x^2-3x
x^2 can't be combined so that is seperate but 2x(+)-3x (negative overpowers positiveis) so we have -x and then -6 cant be joined with anything so
x^2-x-6
B) I'm going to go a little faster but it's essentially the same
2x(x-4)-3(x-4)
Multiply2x*x= 2x^2
2x*-4=-8x
combinde these two (2x^2-8x)
Pt.2
-3*x= -3x
-3*-4(negative and negative cancels out and it becomes positive)=12
join (-3x+12)
and then 2x^2-8x-3x+12
you can only combine -8x-3x so -12x
2x^2-12x+12
C) this is level 3
x(x-2) + 2(x-2)
(x^2-2x) +(2x-4)
only like terms is 2x and-2x so combine and its 0
x^2-4
If a new sweater sells for $53 find the total cost if you are charged 5% sales tax. Round your answer to the nearest cent
Answer:
$55.65
Step-by-step explanation:
you would find 5% of 53 which is $2.65 and then add that to your original price so 53 + 2.65 = 55.65
I NEED HELP ASAP!!!!!
Answer:
-0.008 or -1/15
Step-by-step explanation:
Fatima has 50 donuts to sell. Each donut is covered with one topping. 5 are covered with peanuts 15 are covered with chocolate chips 20 are covered with coconut The rest are covered with sprinkles How many donuts are covered with sprinkles?
Answer:
FATIMA (LOLOLOLOLOLOLOLOLOLOL)
Anyways the correct answer is 10 donuts that are covered with sprinkles
Step-by-step explanation:
5+15+20=40
50-40 = 10
HELP QUICKLY AND FAST PLS IM GIVING BRAINLIEST!!!
Answer:
A
Step-by-step explanation:
a scatter plot with a line is shown.
(pic)
which statement is most likely correct about the line?
1) it can be the line of best fit because it is closest to most data points
2) it can be the line of best fit because it passes through all the scatter points
3) it cannot be the line of best fit because it is not closest to most of the points
4) it can be the line of best fit because it does not show positive association
Answer:
Choice 3
Step-by-step explanation:
A line of best fit always goes through the pattern of points.
Solve for the missing angles in the parallelogram.
X
у
60°
X=
y =
I need help with this