Answer:
x = 5
y = -3
as an ordered pair: (5,-3)
Step-by-step explanation:
if y = -3, then replace y in the first equation with -3.
-3 - 3x = 12
move -3 over to the other side by adding 3 to both sides.
3x = 15
x = 5
y = -3
Answer:
x = -5
y = -3
Step-by-step explanation:
Two equations
Solve using substitutition
y = -3
y - 3x = 12
_____________________
Since the first equation has y alone, we can plug it into the second equation for y.
(-3) - 3x = 12
-3 - 3x = 12
Add 3 to both sides :
-3x = 15
Divide -3 from both sides to get x alone :
x = -5
Now that we have x, plug it into x in the second equation :
y - 3(-5) = 12
y + 15 = 12
Solve for y :
Subtract 15 from both sides :
y = -3
What is the opposite of the opposite of the opposite of 29?
Answer:
-29
Step-by-step explanation:
First opposite: -29
Second opposite: 29
Third opposite: -29
What expressions equivalent to 25c+15 ? ( more than one answer )
A. 25c+15/5
B. 5c+15
C. 3+5c
D. 1/5(25c+15)
E. 5(25c+15)
Answer:
The only one that looks familiar is B sorry >-<
Step-by-step explanation:
Answer: The correct answers are C and B
Step-by-step explanation:
What is the solution for the system shown below?
Answer:
Step-by-step explanation:
the solution to the pair is (5,2)
John has 44 quarters.
Jan has 100 dimes. Who
has more money?
John has more.
John has $11 while Jan has $10
Really don’t understand this one
Answer:
(3,8)
Step-by-step explanation:
First, you need to graph a triangle using the points given.
Then reflect across y = x
R is (3,0) which when reflected across y = x is (0,3)
S is (3,3) which when reflected across y = x is (3,3)
R is (4,0) which when reflected across y = x is (0,4)
PLEASE HELP I NEED THIS ASAP
which relation is not a function?
Answer:
im not completley sure but i think its B
Step-by-step explanation:
The Gonzalez family sold their home for $256,000. Their real estate agent earned 5.5% in commission of that sale. How much did the Gonzalez family get to keep from the sale?
18.0*18.9 please help, please!
Answer:
340.2
Step-by-step explanation:
18.0 x 18.9 = 340.2
Answer:
18.0x18.9=340.2
Step-by-step explanation:
Tasha is rolling 2 dice. Use a probability model to determine the theoretical probability that she will roll an even number on the first die and a multiple of 3 on the second die?
Answer:
4/12 probability
Step-by-step explanation:
there is 4/12 chance she will roll this
Please solve quickly! I’ll give brainliest as soon as possible!
Answer:
5.4
Step-by-step explanation:
Ita a basic right triangle problem
c^2=a^2+b^2c=db=7-2=5a=4-2=22^2+5^2= dd= 5.39 (rounded to 5.4)help it's my last question!! (slopes) (brainliest)
Answer:
x- intercept : How many sandwichs he bought
y-intercept : How many drinks he bought
Simplify. 28x^2/7x^6
Answer:
4x^8
Step-by-step explanation:
hope this helps
Rick wants to divide his 11 inch ribbon into sections
spaced apart 2 1/3 centimeters.
How many holes would Rick have on his ribbon?
Answer:
12
Step-by-step explanation:
since 1 inch equals 2.54 cm then 11 inches equals 27.94 cm
27.94 ÷ 2.33 = 11.99
John plants 36 tulip bulbs in his
garden. He has used half of the tulip
bulbs. How many did he have to
begin with
Answer:
72
Step-by-step explanation:
if he has half then its 36x2=72
BRAINLIEST Please help i'd appreciate it thanks, Have a nice day :)
NEED HELP ASAP PLEASE AND THANK YOU:
Sherry draws a triangle. The length of side AC is 12 inches. The length of side AB¯ is 9 inches. She wants to draw a line XY that is parallel to BC. If she draws point X 3 inches from B, how far from point A does she need to draw point Y so that XY∥BC?
A. Point Y should be 10 inches from point A.
B. Point Y should be 4 inches from point A.
C. Point Y should be 4.5 inches from point A.
D. Point Y should be 8 inches from point A.
Answer:
D. Point Y should be 8 inches from point A
Step-by-step explanation:
could you explain to me how to do this ? I do not understand at all
Answer:
I believe this is how you do it
Step-by-step explanation:
csc∅tan∅
(1/sin∅)(sin∅/cos∅)
(sin∅)/(sin∅cos∅)
1/(cos∅)
sec∅
csc²∅tan²∅sin∅
1/(sin²∅) * tan²∅ * sin∅
tan²∅/sin²∅ * sin∅
tan²∅/sin∅
32) In a triangle, the exterior angle is twice of each of the interior remote angles. The exterior angle is 1200. Find the measure of the three angles of the triangle.
Answer:
60 degrees each
Step-by-step explanation:
For the triangle, the sum of the interior angles is equal to the exterior
Let x and y be interior
Let z be the third angle
w be the exterior
w = x+y
120 = x+y
If the exterior angle is twice of each of the interior remote angles, then;
2x = 2y
x = y
120 = x+x
2x = 120
x = 60
Since x = y, y = 60 degres
From the triangle, the third angle will be 180 - 120
z = 180-120
z = 60
The measures of the 3 angles are 60 degrees each
A store sold 650 bicycles last year. This year the store sold 572 bicycles. What is the percent decrease in the number of bicycles sold from last year to this year? PLEASE HELP
Answer:
Decreased by 12%
Step-by-step explanation:
to find percentage change --- new-original/original x 100
-78/650 x100 = -12%
If Gavin has 6 9/20th of time left to play videos, what is that mixed number written in minutes and seconds?
Answer:
[tex]387\ \text{minutes}[/tex]
Step-by-step explanation:
The time Gavin has is [tex]6\dfrac{9}{20}\ \text{hours}[/tex]
[tex]6\dfrac{9}{20}=\dfrac{20\times 6+9}{20}[/tex]
[tex]=\dfrac{129}{20}\ \text{hours}[/tex]
[tex]=6.45\ \text{hours}[/tex]
[tex]=6\times 60+0.45\times 60=360+27[/tex]
[tex]=387\ \text{minutes}[/tex]
The number of minutes is [tex]387\ \text{minutes}[/tex].
A painter is placing a ladder to reach the third story window, which is 14 feet above the ground and makes an angle with the ground at 70°
How far out from the base of the building does the ladder need to be positioned? Round your answer to the nearest tenth.
Answer:
4.8
Step-by-step explanation:
We are given the hypotunese or the slanted side which is the ladder length which is 14.
We are given an angle at the bottom which is 70 degrees.
We are asked to find the horizontal side which is adjacent to the angle at the bottom.
Since we have a hypotunese and a side adjacent to the angle, we are going to use the function cosine.
we use this formula
[tex] \cos(theta) = \frac{adj}{hypo} [/tex]
[tex] \cos(70) = \frac{x}{14} [/tex]
x=4.8
33.52 is 419% of what?
Answer:
140.4488
Step-by-step explanation:
Answer:419% of 33.52 = 140.4488
Step-by-step explanation: If you multiply .419 by 33.52 you get 140.4488
Plz help me plzzzz I need it
Step-by-step explanation:
y= 30x + 180
there is no solution to represent Karen which is 4x + 100
1. Malik has $30,000 in a savings account that earns 8% annually.
The interest is not compounded. How much total money will he
have in 2 years after collecting the interest?
a. How much simple interest did Malik receive?
$
b. How much total money does Malik have after the 2 years?
$
Step-by-step explanation:
I= prt
I= 30000×8%×2
I= 4800
total = 30000+4800
=34800
what is the answer of this question?
9514 1404 393
Answer:
970
Step-by-step explanation:
It turns out that the radical terms cancel, so the result is an integer. You can find the integer value using your calculator. It is ...
(5 +2√6)³ +1/(5 +2√6)³ = 970
_____
The cube of 'a' is ...
(5+2√6)³ = 5³ +3·5²·2√6 +3·5·(2√6)² +(2√6)³
= 125 +3·50√6 +3·120 +48√6
a³ = 485 +198√6
The reciprocal of this is ...
b³ = 1/a³ = 1/(485 +198√6) = (485 -198√6)/(485² -6·198²) = (485 -198√6)/1
b³ = 485 -198√6
Then the sum is ...
a³ +b³ = (485 +198√6) +(485 -198√6) = 970
If Sally purchased a set of books to sell at her store. She wants to mark up the books by 30%. Which equations would represent the price, p, she plans to sell the books for? (Select all that apply)
A
1.03p
B
1p + 0.3p
C
130p
D
1.3p
E
1p + 0.03p
Answer:
it would be D
Step-by-step explanation:
Which of the following is equal to 287 ÷ 7?
A.
(280 ÷ 7) + (7 ÷ 7)
B.
(280 ÷ 7) - (7 ÷ 7)
C.
(280 + 7) ÷ (7 + 7)
D.
(280 ÷ 7) + (280 ÷ 7)
Answer:
(280+7) ÷ (7+7)
Step-by-step explanation:
hopefully this helps ya
The equation that is equal to 287 ÷ 7 is (280 + 7) ÷ (7 + 7). The correct option is C.
What is equation?An equation is a statement in mathematics that shows that two expressions are equal. It has two sides that are separated by an equal sign.
To find the value of 287 ÷ 7, we can use the following methods:
(280 ÷ 7) + (7 ÷ 7) = 40 + 1 = 41(280 ÷ 7) - (7 ÷ 7) = 40 - 1 = 39(280 + 7) ÷ (7 + 7) = 287 ÷ 14 = 20.5(280 ÷ 7) + (280 ÷ 7) = 40 + 40 = 80We can simplify 287 ÷ 7 as follows:
287 ÷ 7 = 280 ÷ 7 + 7 ÷ 7
Note that 7 ÷ 7 simplifies to 1, so we have:
287 ÷ 7 = 280 ÷ 7 + 1
Therefore, the answer is C. (280 + 7) ÷ (7 + 7) = 287 ÷ 14 = 20.5.
For more details regarding equation, visit:
https://brainly.com/question/29657983
#SPJ2
can you help me please
tan = opp/adj
tan 20 = opp/10
x = 10(tan 20)
x = 3.63....
x = 3.6 cm
Death Valley has an elevation of 282 feet below sea level. Townes Pass Summit has an elevation which is 4,956 greater than the elevation in Death Valley. Which integer represents the elevation of Townes Pass?
-5,238 feet
5,238 feet
-4,674 feet
4,674 feet
Answer:
Choice #4) 4674 feet above sea level
Step-by-step explanation:
4956-282=4674
What is the value of x?
Enter your answer in the box.
x =
Answer:
x = 98 degrees
Step-by-step explanation:
A heptagon has a total of 900 degrees for the interior angles. Add up all the angles and then subtract from 900 to find x.
146+122+142+140+110+142 = 802.
900-802 = 98
Answer:
x = 98
Step-by-step explanation:
This shape has 7 sides. Using the formula n - 2 we can get the number of triangles. n represents the number of sides.
n - 2 = 5
All triangles have 180 degrees, so multiply 180 by the number of triangles (5).
180 × 5 = 900
The total number of degrees in this shape is 900. Adding the other angle measures and then subtracting them from 900 gives us x.
146 + 122 + 142 + 140 + 110 + 142 = 802
900 - 802 = 98.
x = 98