School X and School Y play eachother in a competiton.
School X has eight more points than School Y
School X has three times as many points than School Y
How many points does each school have?
Answer:
school x = 12
school y = 4
Step-by-step explanation:
School X has eight more points than School Y.
School X has three times as many points as School Y .
Writing these statements in terms of equation
x = y + 8
x = 3 y
Substituting the value of x in y, we get
3 y = y + 8
Taking variable on left side of equation
3 y – y = 8 (subtract y from both sides)
2 y= 8 (divid 2 from both sides)
y = 4
then plug in y to the first equation
x= y + 8
x= 4 + 8
x= 12
Soo, I need help with these 3 math problems. I don't have enough time to do them before I go to bed.
So these apple pies have a ratio of 15 apples to 3 pies. How many apples do you need for 12 pies?
Answer:
60
Step-by-step explanation:
since 15 apples makes 3 pies you divided 15 by 3 and get 5. 5 apples for one pie so that would be 5 x 12 = 60
Answer:
Since with 15 apples we are able to make 3 pies, this means that in each pie there are 5 apples (15apples divided by 3 pies = 5 apples.)
If there are 12 pies we simply have to multiply 12x5 which equals 60, this means that if we needed to make 12 pies we would need 60 apples.
15apples:3pies = 60apples:12pies
What is the answer to 1/3 divided by 2 is in fractions
Answ1/6
Step-by-step explanation:
1/3 divided by 2
we can change the division sign into multiplication by flipping it and this will also inverse 2
so now we will have
1/3 x 1/2
=1/6
Solve for the value of x.
10x-5
8x+9
Answer:
[tex]\displaystyle 7 = x[/tex]
Step-by-step explanation:
These are alternate interiour angles, and the theorem states that they are congruent, so set both expressions equivalent to each other:
[tex]\displaystyle 10x - 5 = 8x + 9 \Rightarrow \frac{-14}{-2} = \frac{-2x}{-2} \\ \\ \boxed{7 = x}[/tex]
I am joyous to assist you at any time.
Type SSS, SAS, ASA, SAA, or HL to
justify why the two larger triangles are congruent.
Answer: ASA
Step-by-step explanation:
In addition to the given information, angle C is congruent to itself by the reflexive property, making ASA congruence.
Solve by completing the square.
w2 – 16w – 19 = 0
Answer:
Factoring w2-16w+19
The first term is, w2 its coefficient is 1 .
The middle term is, -16w its coefficient is -16 .
The last term, "the constant", is +19
Step-1 : Multiply the coefficient of the first term by the constant 1 • 19 = 19
Step-2 : Find two factors of 19 whose sum equals the coefficient of the middle term, which is -16 .
-19 + -1 = -20
-1 + -19 = -20
1 + 19 = 20
19 + 1 = 20
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
w2 - 16w + 19 = 0
hope it helps
Recognize functions from graphs
11
Does the graph represent a function?
Answer:
yes
Step-by-step
A high school is having a talent contest and will give different prizes for the best 5 acts in the show. First place wins the most money, and each place after that wins $50 less than the previous place. Part A Create a model that can be used to determine the total amount of prize money based on the value of the first place prize Enter your model in the box provided.
The model that can be used to determine the total amount of prize money based on the value of the first place prize is as follows;
Total amount of price money = 5x - 500
The prices are given to the best 5 acts. The first place wins the most money and each place after that wins $50 less than the previous place. The pattern follows a sequence.
What is a Sequence?Sequence is a list of things (usually numbers) that are in order. Therefore,
let
the first price = x
The common difference of the sequence would be - 50.
To create a model that can be used to determine the total amount of prize money based on the value of the first place prize can be done as follows;
x , x - 50, x - 100, x - 150, x - 200Therefore,
Total amount of price money = x + x - 50 + x - 100 + x - 150 + x - 200
Total amount of price money = 5x - 500
learn more on model here: https://brainly.com/question/2400667
If an island's only residents are penguins and bears, and if there are 22 heads
and 52 feet on the island, how many penguins and how many bears are on the
island?
Answer:
27 penguins and 43 bears
i hope thats right lol
Step-by-step explanation:
Miguel spent $11 to buy 16 apples and oranges. How many of each type of fruit did he buy F apples cost $0. 75 and oranges cost $0. 65
Answer:
Step-by-step explanation:
x + y = 16
.75x + .65y = 11
75x + 65y = 1100
-75x - 75y = -1200
-10y = -100
y= 10 organes
x + 10 = 16
x = 6 apples
x= 6 apples
y = 10 oranges
Find the value of X for the given parallelogram
Answer:
15[tex] \: [/tex]
Step-by-step explanation:
Parallelogram is a quadrilateral whose both pairs of opposite sides are parallel and equal and opposite angles are also equal.
[tex] \: [/tex]
So,
[tex] \\ { \longrightarrow \qquad{ \pmb{ \sf { \angle P = \angle R}}}} \: \: \\ \\[/tex]
[tex]{ \longrightarrow \qquad{ \pmb{ \sf { 6x - 10 = 2x + 50}}}} \: \: \\ \\[/tex]
Subtracting 2x from both sides we get :
[tex] \\ { \longrightarrow \qquad{ \pmb{ \sf { 6x - 10 - 2x = 2x + 50 - 2x}}}} \: \: \\ \\[/tex]
[tex]{ \longrightarrow \qquad{ \pmb{ \sf { 4x - 10 = 50 }}}} \: \: \\ \\[/tex]
Adding 10 to both sides we get :
[tex] \\ { \longrightarrow \qquad{ \pmb{ \sf { 4x - 10 + 10 = 50 + 10 }}}} \: \: \\ \\[/tex]
[tex]{ \longrightarrow \qquad{ \pmb{ \sf { 4x = 60 }}}} \: \: \\ \\[/tex]
Dividing 4 from both sides we get :
[tex]{ \longrightarrow \qquad{ \pmb{ \sf { \frac{4x}{4} = \frac{60}{4} }}}} \: \: \\ \\[/tex]
[tex]{ \longrightarrow \qquad{ \pmb{ \frak { x = 15 }}}} \: \: \\ \\[/tex]
Therefore,
The value of x is 15solve for x and y.
A.
B.
C.
D.
Step-by-step explanation:
the height from the 90° angle (which is y here) in a right-angled triangle is the square root of the Sergent lengths of the Hypotenuse.
y = sqrt(3×9) = 3×sqrt(3)
and x we get via Pythagoras :
x² = y² + 9² = 27 + 81 = 108
x = sqrt(108) = sqrt(36×3) = 6×sqrt(3)
so, A is correct.
Solve the inequality.
r+0.2<−0.7
Answer:
r<−0.9
Step-by-step explanation:
Let's solve your inequality step-by-step.
r+0.2<−0.7
Step 1: Subtract 0.2 from both sides.
r+0.2−0.2<−0.7−0.2
r<−0.9
Find the measure of ZC. Write your answer as a decimal
What is the radius of the circle x2+y2–81=0?
Does anyone know this? Please help! ASAP!!!
Answer:
a=4
b=5
c=6
d=1
Step-by-step explanation:
4a=16
7+a+b=16
2b+c=16
a+b+c+d=16
answer the top 3 please i don’t need the rest
Answer:
a) inscribed angle LNP
b) minor arc: LP
c) semicircle: LN
PLEASE HELP ASAP
I PUT A PHOTO
Answer:
7/8
Step-by-step explanation:
Heather drove at a constant rate. She traveled 162162 miles in 33 hours. How far, in miles, did Heather travel in 11 hour?
Answer:
i think its 54054
Step-by-step explanation:
16 of 18
!!!
Write a numerical expression to represent the phrase "the sum of 25 and the cube of 9." Do not evaluate the expression.
st answer in the box
What is the area of this triangle?
6 cm
11 cm
Answer: 33
Step-by-step explanation:
Answer:
33
Step-by-step explanation:
Area of a triangle = [tex]\frac{bh}{2} \\[/tex] (base × height ÷ 2)
A = 6 · 11
2
A = 66
2
A = 33
Determine if the two triangles are necessarily congruent. If so, fill in a flowchart proof
to prove that they are.
L
The triangles
necessarily congruent.
Answer:
Step-by-step explanation:
Compare the following ratios: (Use >, < or = sign in the place holders)
8) 1:2 ___ 3:6
9) 3:5 ___ 2:4
10) 6:7 ___ 4:8
11) 5:1 ___ 7:9
12) 4:6 ___ 7:6
13) 1:8 ___ 4:11
14) 5:2 ___ 10:4
15) 4:3 ___ 2:4
16) 7:2 ___10:3
Answer:
Step-by-step explanation:
8) 1:2 _<__ 3:6
9) 3:5 _>__ 2:4
10) 6:7 _>__ 4:8
11) 5:1 _<__ 7:9
12) 4:6 _<__ 7:6
13) 1:8 __<_ 4:11
14) 5:2 __<_ 10:4
15) 4:3 _> 2:4
16) 7:2 _<__10:3
The point always points towards the smallest number.
AABC = AEDC, AB = 7, mZA = 40°
mZE = [ ? ]'.
Answer:
40
Step-by-step explanation:
since they are Similar
m∠E = m∠A =40°
Use the given information to find (a) sin (s +t), (b) tan (s+t), and (c) the quadrant of s+t cos s=3/5 and cos t= 15/17, s and t quadrant I
Step-by-step explanation:
Let find the other trig function first, just sin s and sin c.
Use pythagoren identity to find sin a.
[tex]1 - \cos {}^{2} (s) = \sin {}^{2} (s) [/tex]
cos s=3/5 so cos^2(s)=9/25
[tex]1 - \frac{9}{25} = \sin {}^{2} (s) [/tex]
[tex] \frac{16}{25} = \sin {}^{2} (s) [/tex]
[tex] \frac{4}{5} = \sin(s) [/tex]
Since this is in the first quadrant, it is positve.
Let do the the same thing for sin t.
[tex]1 - \frac{169}{289} = \sin {}^{2} ( {}^{} t) [/tex]
[tex] \frac{120}{289} = \sin {}^{2} (t) [/tex]
[tex] \frac{2 \sqrt{30} }{17} = \sin(t) [/tex]
Now, we can compute
a.
[tex] \sin(s + t) = \sin(s) \cos(t) + \cos(s) \sin(t) [/tex]
[tex] \frac{4}{5} \times \frac{13}{17} + \frac{3}{5} \times ( \frac{2 \sqrt{30} }{17} )[/tex]
[tex] \frac{52}{85} + \frac{6 \sqrt{30} }{85} [/tex]
[tex] \sin(s + t) = \frac{52 + 6 \sqrt{30} }{85} [/tex]
b
[tex] \tan(s + t) = \frac{ \tan(s) + \tan(t) }{1 - \tan(s) \tan(t) } [/tex]
Tan s is 4/3
Tan t is 2 times root of 30/ 13
So we have
[tex] \frac{ \frac{4}{3} + \frac{2 \sqrt{30} }{13} }{1 - \frac{8 \sqrt{30} }{39} } [/tex]
[tex] \tan(s + t) = \frac{52 + 6 \sqrt{30} }{39 - 8 \sqrt{30} } [/tex]
c. They are all in 1st quadrant
Which operation should you perform first in the expression 7 × 2 by the power of 3
Answer:
If the 7 x 2 is in parenthesis then you would do the 7 x 2 first then do 14 by the power of 3. If there is no parenthesis and the power of 3 is hovering next to the 2 then you would do 2 to the power of 3 and then multiply that by 7.
Step-by-step explanation:
PEMDAS. Whatever is in parenthesis gets solved first, then exponents and so on and so forth.
An oil company fills 1 over 12 of a tank in 1 over 4 hour with gasoline. At this rate, which expression can be used to determine how long will it take for the tank to fill completely?
1 over 4 ⋅ 1 over 12 hours
1 over 12 ⋅ 4 hours
1 over 4 ⋅ 12 hours
12 ⋅ 4 hours
I am in middle school, not high school.
Answer:
1
Step-by-step explanation:
1/4 × 12 hours, since 12 × 1/12 = 1
Hope it helps!!!!!!!Brainliest pls!!!!!!There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is
7
8
.
There are 56 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.
Step-by-step explanation:
Multiply 56 by 7/8 to determine the amount of red marbles.
*56 can be put over 1.
Multiply;
[tex] \frac{56}{1} \times \frac{7}{8} = \frac{392}{8} [/tex]
Simplify by dividing by 8;
[tex] \frac{392 \div 8}{8 \div 8} = \frac{49}{1} [/tex]
There are 49 red marbles.
the set of integers is closed numbers the operation division
Answer:
The integers are closed under addition, multiplication and subtraction, but NOT under division
Step-by-step explanation:
9 ÷ 2 = 4½
Name the quadrilateral whose diagonals are perpendicular bisectors of each other
Rhombus or square.
Hope it helps!