1/2a - 6 = 3 + a solve for a plssss
Your teacher has disabled instant marking. Your marks will appear after the due date.
48%
A community centre organises a raffle to raise money for charity.
There is 1 prize to be won in the raffle.
Daniel buys 17 raffle tickets.
A total of 280 tickets were sold.
Find the probability that Daniel does not win the prize.
Answer:
263/280 or 0.9
Step-by-step explanation:
if daniel has 17 raffle tickets that mea\ns he has 17 chances of winning. and the question says chance that he wont win
so
280-17 (out of 280)
=263/280
the sum of two consecutive even integers is 138
Answer:
68 and 70
Step-by-step explanation:
if the first integer is x, the next would be x + 2
so your equation is x + x+2 = 138
2x + 2 = 138
minus 2 on both sides
2x =136
x = 68
so if x is 68
x + 2 would be 70
if you add those up, im pretty sure you'll get 138
Mark Brainliest! if you get it right!
a biologist analyzes 15 bacteria samples each day a. complete the table
Answer:
Day 1=15 Day 2=30 Day 3=45 Day 4= 60 Day 5= 75. The expression is N+15
Step-by-step explanation:
The complete table:
Days 1 2 3 4 5
Total samples 15 30 45 60 75
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Number of bacteria samples analyze each day = 15
The equation for the number of bacteria analyzes after x days.
B = 15x
Now,
x = 1, B = 15
x = 2, B = 30
x = 3, B = 45
x = 4, B = 60
x = 5, B = 75
Thus,
Days 1 2 3 4 5
Total samples 15 30 45 60 75
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
A 6 ft. tall man casts a shadow that is 5 ft. tall. What will be the length of the flagpole that casts a shadow of 10ft?
Answer:
12 ft.
Step-by-step explanation:
You can solve this as a proportion:
[tex]\frac{6}{5} =\frac{x}{10}[/tex]
Cross multiply to get 5x = 60. Simplify by dividing 5 from both sides to get x = 12.
Hope it helps!
30 x (300 / 30)= 300
1) remover parentheses.
[tex]30 \times \frac{300}{30} = 300[/tex]
2) cancle 30.
[tex]300 = 300[/tex]
3) Since both sides equal, there are infinitely many solutions.
Infinitely Many Solutions.
Preston drove 115 miles and used up 6
gallons of gas. How many milea can he
drive with 14 gallons of gas?
Hurrry please
Answer:
269gallons
Step-by-step explanation:
115/6=19.16
19.16*14=268.33 or round up to 269
Match each description to its example.
1. (2, -3) → (-3, 2) reflection across both axes
2. (2, -3) → (2, 3) reflection across the x-axis
3. (2, -3) → (-2, -3) not a reflection
4. (2, -3) → (-2, 3) reflection across the y-axis
Answer:
(2, -3) → (2, 3) reflection across the x-axis
(2, -3) → (-2, -3) reflection across the y-axis
(2, -3) → (-2, 3) reflection across both axes
(2, -3) → (-3, 2) not a reflection
Step-by-step explanation:
Reflection across the x-axis:
When we reflect a point across the x-axis, it's x coordinate keeps the same value, while the signal of the y-coordinate is changed, having the same value, with different signal.
So the correct option is:
(2, -3) → (2, 3) reflection across the x-axis
Reflection across the y-axis:
When we reflect a point across the y-axis, it's y coordinate keeps the same value, while the signal of the x-coordinate is changed, having the same value, with different signal.
So the correct option is:
(2, -3) → (-2, -3) reflection across the y-axis
Reflection across both axis:
Both change the signal. So
(2, -3) → (-2, 3) reflection across both axes
Rotations:
When we have a rotation, not only the signals can change, but also the numbers, x with y and y with x. Rotations are not reflections. So
(2, -3) → (-3, 2) not a reflection
Which of the following equations must be true? A k +5 (3 – 1) = 15+ k B) 3+ 7k 21+ 3k C) 5 2k = 3K © 5 D) 5 (7 + k) = 35 + 5k
Answer:
D is the correct answer
im sure
A 7th grade classis selling packages of cotton candy at a festival for $2.95 each. Each package costs them $0.95 to make.They expect to sell between 900 and 1,000 packages of cotton candy during the festival.What is a reasonable estimate of the class’s profit?
A. $900
B. $1,000
C. $2,000
D. $3,000
Answer:
Answer C.
Step-by-step explanation:
The class sells them for $2.95, assuming $0.95 manufacturing cost per, leaving $2.00 profit per bag. If they sell 900-1000 packages at $2.00, it leaves $1800-$2000 profit.
Answer:
if you see they have 2.95 and 0.95 you need to combert to a decimal and then you need to subtract 900 and 1,000
Step-by-step explanation:
and oviosly is a 900
Write the equation in slope intercept form when slope = 6/5 and the y- intercept =-8
Step-by-step explanation:
Exercícios:
9. Sobre o estudo de equações, escreva V para as afirmações verdadeiras e F para as falsas.
a) ( ) A expressão 17 - 4x + 25 representa uma equação.
b) ( ) O número 23 representa um dos membros da equação -9x + 4 = 23.
c) ( ) Na equação x + 4 = 3x + 20, a incógnita é x.
d) ( ) A equação 3y - 15 = 0 não tem segundo membro.
Is either x=6 or x =7 a solution to x +7=13
Answer:6
Step-by-step explanation:
we believe that 81% of the population of all business statistics students consider to be an exciting subject
Answer:
yes
Step-by-step explanation:
plz can you help me
Answer:
1/2
Step-by-step explanation:
because there are one woman and one man
1: If a = 5/2 then 1/a =
A. 2
B. 5
C. 2/5
D. 5/2
Answer:
C. 2/5
Step-by-step explanation:
IF a = 5/2 then
1/a = 2/5
Hope it will help :)
please this is a quizzzz
Answer:
QR and ST
Explanation:its right
-4(2x+7) = 2x - 18 Solve for x
Answer:
x = -1
Step-by-step explanation:
-8x - 28 = 2x - 18
+28 +28
-8x = 2x + 10
-2x -2x
-10x = 10
÷-10 ÷-10
x = -1
Answer:
1.Distribute
2.Add 28 to both sides
3.Simplify
4.Subtract 2x from both sides
5.Simplify
6.Divide both sides by the same factor
7.Simplify
x =-1
Consider this Revenue Advertising Expense situation.
A drugstore that sells a certain brand of vitamin capsule estimates that
the profit P (in pesos) is given by P = −50x³ + 2400x² − 2000, 0 ≤ x ≤ 32 where x is the amount spent on advertising (in thousands of pesos). An
advertising agency provides four (4) different advertising packages with
costs listed below.
Which of these packages will yield the highest revenue
for the company?
A. Package A: Php 8,000.00
B. Package B: Php 16,000.00
C. Package C: Php 32,000.00
D. Package D: Php 48,000.00
Answer:
C. Package C: Php 32,000.00Step-by-step explanation:
Given function
P = −50x³ + 2400x² − 2000, 0 ≤ x ≤ 32x is the amount spent on advertising (in thousands of pesos).
Substitute x with 8, 16 and 32 and solve for P.
The greatest value of P is at:
x = 32 ( Php 32000.00)and the value is
P = 817200.00Another method is graphing.
See the attached picture for graphical solution.
Answer:
Package C: Php 32,000.00
Step-by-step explanation:
Look at the intersecting lines below.
What is the value of a?
Answer:
a=22
Step-by-step explanation:
2a+2=46
2a=46-2
2a=44
a=44÷2
a=22
Answer:
a = 22°
Step-by-step explanation:
Since vertical angles are always congruent we know that 46° = 2a + 2°, therefor...
46° = 2a + 2°
2a = 46° - 2°
2a = 44°
a = 44° / 2
a = 22°
Evaluate 4!5!/3!7! Simplify as much as possible
help me due tomorrow please explain
Answer:
3/8
Step-by-step explanation:
First convert 1/2 into eights. 1/2 as eighths is 4/8.
So 4/8-1/8=3/8.
Therefor, 3/8 is the answer you're looking for.
I hope I helped :)
Answer:
3/8
Step-by-step explanation:
you have to find the LCM (least common multiplier) of 2,and 8 and that would be 8 therefore youd change the fractions from 1/2-1/8 to 4/8-1/8 you subtract the tops and keep the bottoms the same as 8. so 4-1=3 therefore the anwser would be 3/8
Tark each location described.
1) Mark the location of
of 6/3
Answer: Chet aero marine
Step-by-step explanation: (this is the only thing I will say and warn this) The contents of the report reflects the views of the authors who are responsible for the fact of the accuracy of the data presented herein. Although the contents do not necessarily reflect policy of the department of transportation. This report does not constitute a standard, specification, or regulation. The united states government does not endorse products or manufacturers. Trade or manufacturer's names appear herein only because they are considered essential to the object of the document. :I hope this helps have a uwu or great day! ✍(◔◡◔)
Use the Distributive Property to solve the equation.
3 = 3/4 ( b - 8 )
Answer:
b = 12
Step-by-step explanation:
First, distribute 3/4 to both terms in the parentheses:
3 = 3/4(b - 8)
3 = 3/4b - 6
Now, solve for b:
9 = 3/4b
12 = b
So, the answer is b = 12
Answer:
12
Step-by-step explanation:
3 = 3/4 x (b-8)
Distribute 3/4 through the parentheses
3 = 3/4 b - 6
Multiply both sides of the equation by 4
12 = 3b - 24
Move the variable to the left - hand side and change its sign
-3b = -24 - 12
Calculate the difference
-3b = -36
Divide both sides of the equation by -3
B = 12
HELLLLP MEEEE!
Liana bought a bike for $120. Three years later, she sold it for $96. By what percent did the value of the bike decrease?
A. 12.5%
B. 20.0%
C. 24%
D. 80.0%
What is twice the difference of a number and 6 is 5
Answer:
8.5
Step-by-step explanation:
Twice the difference of a number and 6 equals 5 is written algebraically as 2(x-6)=5, where x is the number. Solving for x:
2(x-6)=5
(x-6)=5/2
x=6+5/2
x=17/2
So the number is 17/2, or, expressed as a decimal number, 8.5
An auto dealer buys a truck at a cost of $15,800 and sells it to consumers at a price of $33,970. Find the amount of the markup, and the percent markup based on the selling price. Round to the nearest tenth percent.
Answer:
i dont know how to help you:(
What is the value of x?
Answer:
D
Step-by-step explanation:
Remark
The two angles across from each other are equal.
Equation
5x - 1 = 124 Add 1 to both sides
Solution
5x - 1 + 1 = 124 + 1 Combine
5x = 125 Divide by 5
5x/5 = 125/5
x = 25
A verandah of width 2.25 m is constructed all along outside a room which is 5 m long and 3 m wide. Find:
(1) the area of verandah and
(ii) the cost of cementing the floor of verandah at the rate of 7 275 per m².
who answers first will be marked as brainliest iam serious no scam
Answer:
(i)The length of room = 5.5 m and width of the room = 4 m
The length of room with verandah = 5.5 + 2.25 + 2.25 = 10 m
The width of room with verandah = 4 + 2.25 + 2.25 = 8.5 m
Area of verandah = Area of room with verandah – Area of room without verandah = Area of ABCD – Area of EFGH = (AB x AD) – (EF x EH) = (10 x 8.5) – (5.5 x 4) = 85 – 22 = 63 m2
(ii) The cost of cementing 1 m2 the floor of verandah = Rs 200 The cost of cementing 63 m2 the floor of verandah = 200 x 63 = Rs 12,600
In a lottery, 6 numbers are randomly sampled without replacement from the integers 1 to 45. Their order of selection is not important. Find the probability of holding a ticket that has zero winning numbers out of the 6 numbers selected for the winning ticket out of 45 the possible numbers
Answer:
p=39/45=13/15
Step-by-step explanation:
Can someone help me ASAP!!! Please!!!!
Answer:
step 1. Angle bisector theorem.
step 2. 14/6 = 21/ (3x - 12)
step 3. 14(3x - 12) =21(6)
step 4. 6x - 24 = 18
step 5. 6x = 42
step 6. x = 7.