How many solutions does the system have? 13x + 4y = 33 26y + 8x =66
Answer:
55
Step-by-step explanation:
Please help on these
Answer:
14. (-8, 12) 15. (6, 7)
In a regular polygon each interior angle is 140° greater than each exterior angle. Calculate the number of sides of the polygon
Answer:
18 sides.
Step-by-step explanation:
The interior and exterior angles sum to 180 so:
I + E = 180
also I - E = 140 (given)
So, adding to eliminate E:
2I = 320
I = 160 degrees and the external angle E = 1809 - 160 = 20 degrees.
Since the sum of all exterior angles in a polygon = 360 degrees
- the number of sides = 360 / 20 = 18.
Which of the following objects exerts a gravitational force?م the Sun the Moon the Earth a basketball an apple
Answer:
Please rate as brainliest.
Step-by-step explanation:
The Moon exerts its force of gravity; since it's smaller and lighter than Earth, we would discover we weigh around a sixth of our weight on Earth if we could weigh ourselves on it. One could ask why the Moon doesn't fall on Earth as an apple from the tree.
C=59(F−32)
The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?
A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 59 degree Celsius.
A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.
A temperature increase of 59 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.
solve please
Answer:
love how all our accounts got deleted. smh
Step-by-step explanation:
Jeremiah missed 68 questions on his multiple choice history final and earned a grade of 66%. How many total questions were on the final exam?
Answer:
200 questions
Step-by-step explanation:
If he missed 68 questions and got a 66%, that means 68 is 34% of the total number of questions
To find the total questions, divide 68 by 0.34
68/0.34
= 200
So, there were 200 total questions on the final exam
PLEASE HELP FAST RIGHT NOW FOR BRAINLIEST AND LOTS OF POINTS
Ned wrote the following statement:
"You can only draw one unique isosceles triangle that contains an angle of 80º."
Which statement is true? (1 point)
Answer:
You didnt show the statements...
Step-by-step explanation:
Need help pleases what’s the answer
Elias had 3 time as much money as munah.Elias spent $240 and munah received $60 from her brother. In the end.Elias and munah had the same amount of money.How much did elias have at first
Answer:
$450
Step-by-step explanation:
let m represent the amount of money munah has
That means elias would have 3 * m or 3m dollars.
Then, you have m + 60 = 3m - 240
solve:
[tex]m + 60 = 3m -240\\300 = 2m\\m = 150[/tex]
So munah started with $150. Since elias has 3 times as much, they have 150 * 3 = 450
help me out with this pls (multiple choice)
Answer:
45 90 45 special triangle
y = 5 (45 sp triangle rule)
x = √50 = 5√2
answer: b
please help me with this question!
PLEASE HELP ME I BEG OF YOU PLEASE I REALLY NEED HELP
Answer:
Step-by-step explanation:
A line adds up to 180 degrees
180 - 81 = 99 degrees
Answer:
99 degrees
Step-by-step explanation:
These are Supplementary Angles:
Supplementary Angles are two angles that equal 180 degrees, this can be determine if the main line is a straight line, s for straight angle
A straight angle is 180 degrees, so simple subtraction:
180-81=99
I hope this helps!
please give thanks, maybe brainliest?
A hiking trail rises 6 feet for every horizontal change of 100 feet. What is the slope of the hiking trail?
Given:
A hiking trail rises 6 feet for every horizontal change of 100 feet.
To find:
The slope of the hiking trail.
Solution:
We have,
Rise = 6 ft
Run = 100 ft
We know that
[tex]Slope=\dfrac{Rise}{Run}[/tex]
[tex]Slope=\dfrac{6}{100}[/tex]
[tex]Slope=0.06[/tex]
Therefore, the slope of the hiking trail is 0.06.
The slope of the hiking trail is equal to 0.06.
Given the following data:
Vertical distance (rise) = 6 feetHorizontal distance (running) = 100 feetTo find the slope of the hiking trail, we would use the following formula:
Slope is the ratio of the vertical distance measured to the horizontal distance measured.
Mathematically, the slope of a hiking trail is given by the formula:
[tex]Slope = \frac{Rise}{Running}[/tex]
Where:
V is the rising vertical distance of an object.H is the horizontal distance an object runs through.Substituting the given parameters into the formula, we have;
[tex]Slope = \frac{6}{100}[/tex]
Slope = 0.06
Read more on slope here: https://brainly.com/question/3514403
Determine the value of x. Assume the segments that appear tangent
are tangent
9514 1404 393
Answer:
x = 12
Step-by-step explanation:
Segment lengths of each chord have the same product.
(x -2)(x +6) = 9×20
x² +4x -12 = 180
x² +4x +4 = 196 . . . . . add 16 (complete the square)
(x +2)² = 14²
x +2 = 14 . . . . . . . . . . . positive root is the only one useful
x = 12
Lateral surface area of this gift box
Debbie bought x pens. She paid $0.75, including tax, per pen. She gave the cashier $20 and received $8.75 in change. How many pens did Debbie purchase?
Answer:
15
Step-by-step explanation:
if she gave 20$ and got 8.75$ in change, she payed 11.25$
11.25$ (total) / 0.75 (per pen)= 15 (pens she bought)
Juan has 240 marbles. This is three times as many marbles as Jon and Jeremy have combined. If Jon has 50 marbles, how many marbles does Jeremy have?
Answer:
30
Step-by-step explanation:
Let x = number of marbles Jon has
y = number of marbles Jeremy have
3(X + Y) = 240
3(50 + Y) = 240
Divide both sides by 3
50 + Y = 80
Solve for y
Y = 30
- 2x – 3y+ | y
-2x-3y+ |y|
Answer:
Step-by-step explanation:
SOMEONE PLEASE HELP ME
can someone answer 1 and 2
they both have a part ABC
Answer:
1.
x=# of purple marbles
y=# of yellow marbles
y=3x
y+x=164
3x+x=164
4x=164
x=41
There are 41 purple marbles and 41*3=123 yellow marbles.
2.
L=large fries
H=hamburger
H=1.15+L
2H+L= 8.60
2.3+2L+L=8.60
2.3+3L=8.60
3L=6.3
L=2.1
A large fries costs $2,1 while a Hamburger costs 1.15+2.1=$3.25.
Write the equations of the line that passes through the point (4,3) and is parallel to the line y=2x−4 . Write the equation in slope-intercept form
Answer:
y=2x+5
Step-by-step explanation:
I used 2 as the slope bc we were given an equation above: y=2x-4. Since parallel lines have same slopes and different y-intercepts, hence, I easily got 2 as the slope.
[tex]4 \times {8}^{x + 1} = {2}^{2x} [/tex]
Calculate the value of x
Answer:
[tex] - 2[/tex]
Step-by-step explanation:
2^2×2^3(x+1)=2^2x
same base cancel,you will get
2+3x+3=2x
take same variable then - or + you will get
[tex]x = - 2[/tex]
Answer:
x=-5
Step-by-step explanation:
2^2×2^3(x+1)=2^2xsince they have the same Base we equat the exponents2+3(x+1)=2x2+3x+3=2x group like terms3x-2x=-3-2x=-5if x ≠ 0 then what is x^0?
Answer:
1
Step-by-step explanation:
Remember that anything to the 0th power is going to be 1 in terms of exponent rules!
Answer:
x
Step-by-step explanation:
because if you are dong it 0 times it would be just x (make sense?)
In this figure, sin(a) = 2 3 What is the value of cos(b) ? A) 1 3 B) 2 3 C) 2 3 D) 3 2
Answer:
where is the figure .....
Please help! will give 30 points!
Answer:
Other needs =25,2 degrees
insurance = 100,8 degrees
Taxes= 7,2
Housing = 57,6
food= 57,6
childcare = 64,8
transportation = 46,8
Step-by-step explanation:
Its % of 360 degrees so you have to calculate the percentage of each categorie on 360 degrees to find the angles. Exemple, for the Other needs, you take 7% out of 360 degrees and you find that it is equal to 25,2. (7% x360 degrees /100)
Zoom in to see better
Blank one options: correct or incorrect
Blank two options: one-third, 3, one fourth, or 4
Blank three options: one fourth, 3, 4, one-third
Blank 4 options: one-twelfth, one-ninth, one-fourth
Answer:
1:Gavin is incorrect.
2:4
3: 1/4
4: 1/12
Step-by-step explanation:
What is -3/4(-5/9) ?
Answer:
5/12
Step-by-step explanation:
Answer:
D) -47/36
Step-by-step explanation:
Trust me.
Find the slope of the line passing through the points (-9,9) and (3,9).
Find the slope of the line passing through the points
(-9,9) and (3,9)
Answer:
[tex]\displaystyle m=0[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-9, 9)
Point (3, 9)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{9-9}{3+9}[/tex][Fraction] Subtract/Add: [tex]\displaystyle m=\frac{0}{12}[/tex][Fraction] Divide: [tex]\displaystyle m=0[/tex]Answer:
This question has a slope of zero.
Step-by-step explanation:
When trying to solve a problem like this, what I recommend doing is subtracting the y value in the first ordered pair from the y value in the second ordered pair, and doing the same for the x values. To write it as a formula,
y2 - y1
––––– = m the 2 in the formula means that the y or x value was from the
x2 - x1 second ordered pair. The 1 means it was from the first
ordered pair. The m means slope.
What will you get if you do this
4x-3x+9=20
Answer:
This can be solved like this:
4x-3x+9=20
Solving 4x-3x
x+9=20
Transposing +9
x=20-9
And now we have, x=11
Answer:
x=11
Step-by-step explanation:
first solve the things you can simplify on one side of the equation:
4x-3x+9=20--->x+9=20
then, get the variables onto one side of the equation and numbers unto the other.
*minus 9 from each side*
x=11