Answer:
2
Step-by-step explanation:
ANWSERRRR NOW PLEASE
two more than twice a number is less than negative eighteen solve for the
Answer:
2x+2<-18
Step-by-step explanation:
First subtract 2 from both sides to get 2x<-20
Then divide both sides by 2 to get x<-10
Admission to a local aquarium is $10 for
adults and $7 for children. The aquarium
collected $6,549 from the sale of 783
tickets. Find the number of adult tickets and
children tickets that were sold.
First, let's define variables:
A = adults
C = children
Okay, now that's done, time to set up the two equations required to solve:
10a + 7c = 6549
a + c = 783
One way you can solve this is to set up the second equation to isolate a variable. For example,
a = -c + 783
Using this, we can plug it into the first equation and solve for c.
10(-c+783) + 7c = 6549
-3c = -1281
c = 427
Now, use the value of 427and plug it in either equation to solve for a.
a + 427 = 783
a = 356
356 adult tickets were sold, and 427 children tickets were sold.
Does anyone know the differences and similarities between theorems and conjectures?
I searched on google but I didn’t understand! So in easy words please.. I’m sorry I’m dumb (;´༎ຶٹ༎ຶ`)
The difference between a theorem and a conjecture :-
Theorem :- Something which is true and can be proved .
I am giving a very simple example here .
Angle sum theorem :- sum of all angles in a triangle will be equal to 180° .
This is a theorem because every interior angle of a triangle will add up to 180° . It cannot change .
So , something that is definitely true and can be proved is a theorem .
Conjecture :- Something that is supposed to be true , but still hasn't been proved to be true .
Example :-
1a = 10
2a = 20
3a = 30
With this you can guess that 4a must be equal to 40 , but it can't be proved without using algebra .
Therefore , something which is likely to be true is a conjecture ( in maths ) .
What is the solution for x in the inequality 4−2x>8
Answer:
X<-2
Step-by-step explanation:
Answer:
x<-2
Step-by-step explanation:
1. Write equation
4-2x>8
2. Combine like terms
-2x>4
3. Divide(and switch ineqaulity sign because the coefficent is negative)
-2x<4
x<-2
This is my last question for the day please help
Answer:
B: billie's solution is incorrect since she didnt
subtract 36 from both sides
Step-by-step explanation:
on the second step, she added 36 on the right.
This is incorrect because when changing one
side on an equation you must change the side
in the same way.
Answer:
B. Billie's solution is right
STAY UP LATE TONIGHT!!!
MARS WILL BE VISIBLE FROM EARTH!!!
IT WON'T BE LIKE THIS AGAIN, UNTIL 15 YEARS!!!
Answer:
You sure this true
Step-by-step explanation:
How you know
Answer:
OOOOOOOO THANK YOU!!!!!!
Solve the following compound inequality 4<_x+4<_12
Answer:
0 ≤ x ≤ 8
Step-by-step explanation:
Given
4 ≤ x + 4 ≤ 12 ( subtract 4 from each of the 3 intervals
0 ≤ x ≤ 8
solve for b. ab + c = d.
(d - c)/a
a + c/d
a/(c-d)
Answer:
you are super nice to let me do this
Step-by-step explanation:
thank you, tgbrrhrbrtbrtrtbrlhixtrdfybvnbjhjgtfugfg...
- Audrina
2.8 x 10^3=
What is the answer
Answer:
9.24
Step-by-step explanation:
The distance of a golf ball from the hole can be represented by the right side of a parabola with vertex (-1,8). The ball reaches the hole 1 second
after it is hit, at time 0.
What is the equation of the parabola, in vertex form, that represents the ball's distance from the hole, y, at time x?
y =
(x +
Answer:
Let's suppose that the hole is at y = 0m, where x is the time variable.
we know that:
The vertex is (-1s, 8m).
(i suppose x in seconds and y in meters)
At x = 1s, the ball reaches the hole, so we also have the point:
(1s, 0m).
Remember that the vertex of a quadratic equation y = a*x^2 + b*x + c is at:
x = -b/2a,
then we have:
-1 = -b/2a.
Then we have tree equations:
8m = a*(-1s)^2 + b*-1s + c
0m = a*(1s)^2 + b*1s + c
-1s = -b/2a.
First we should isolate one variable in the third equation, and then replace it in one of the other two:
1s*2a = b.
So we can replace b in the first two equations bi 1s*2a.
8m = a*1s^2 - 1s*2a*1s + c
0m = a*1s^2 + 1s*2a*1s + c
We can simplify both equations and get:
8m = a*( 1s^2 - 2s^2) + c = -a*1s^2 + c.
0m = a*(1s^2 + 2s^2) + c = a*3s^2 + c.
Easily we can isolate c in the second equation and then replace it into the first equation:
c = -a*3s^2
The first equation becomes:
8m = -a*1s^2 - a*3s^2 = -a*4s^2
a = 8m/-4s^2 = -2m/s^2.
Now with a, we can find the values of c and b.
c = -a*3s^2 = -(-2m/s^2)*3s^2 = 6m.
b = 1s*2a = 1s*(-2m/s^2) = -2m/s.
Then the equation is:
y = (-2m/s^2)*t^2 + (-2m/s)*t + 6m
Jordan has a garden that is enclosed by a rectangular fence. The perimeter of the garden is 84 feet. The length of one side of fencing is 8 yards. What is the area of Jordan's garden?
Answer: 432 ft^2
Step-by-step explanation:
See attached picture
Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a 15% alcohol solution.
Which equation can Bruce use to determine how much of the 10% alcohol solution he should use?
ingredients summed = final product
.10 * x ml + .15 (50ml - x) = .12 (50 ml) solve for x the amount of 10 %
.1x + 7.5 - .15x = 6 - .05x = -1.5
x = 30 ml of 10%
50-30 = 20 ml of 15%
factorise the following by grouping pairs (1) a2_9a+3a_27
Answer:
13a_29
Step-by-step explanation:
group like terms
You receive $50 for your birthday. You buy a book for $14.95 and a baseball cap for $24.95. How
much money did you spend?
Answer:
Step-by-step explanation:
50-14=36
36-24=12
12-1=11
11-0.9=10.1
The total amount of money spent will be $10.1.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that you receive $50 for your birthday. You buy a book for $14.95 and a baseball cap for $24.95.
50-14=36
36-24=12
12-1=11
11-0.9 = $10.1
Therefore, the total amount of money spent will be $10.1.
To know more about an expression follow
https://brainly.com/question/27568140
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I don't know how to explain it
Answer:
Sam's thinking was incorrect.
On number first we have to move 10 units from 0 in positive direction after that negative sign means move in left direction.
But we have 2 negative signs so we need to move 6 units more on positive or right direct as shown below.
Step-by-step explanation:
Answer:
No, Sam was thinking was incorrect
Step-by-step explanation:
Sam's thinkin was incorrect when every time you add and negative to a negative it always become a positive number.
10 - (-6)
10 + 6 = 16
What is the volume of the prism below
Answer:
D
Step-by-step explanation:
Volume= 1/2 (b*h*l)
((5*3*10)/2 = 75 Units^3
What is 3/4 times 1/8=
Answer:
The answer should be 3/22.
Step-by-step explanation:
To multiply the fractions, multiply the numerators and denominators separately.
3 times 1 over 4 times 8,
Multiply straight across,
Answer should be 3/22
The 3/4 times 1/8 equals 3/32.
To calculate the product of fractions, you multiply the numerators together to get the numerator of the result, and multiply the denominators together to get the denominator of the result.
For 3/4 times 1/8:
Numerator: 3 × 1 = 3
Denominator: 4 × 8 = 32
To know more about equals here
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Simplify to a single power of 4:
4^7/4^6
Step-by-step explanation:
[tex] \frac{ {4}^{7} }{ {4}^{6} } [/tex]
= 4
.......
Whats the value of x? 2−(3x−4)=2x−9
Answer:
x=3
Step-by-step explanation:
Use pemdas!
First use distributive property to get rid of the parenthesis, by multiplying 2 by 3x and -4. Then combine like terms and use inverse operations to simplify each side until you get it down to just x! Hope this helped! :)
help me please , I’ll appreciate it !!
6, this is because FG + GH = FH, so 8+ GH=14, and 14-8=6
Find the slope of the line that passes through (3, -7), (1, -2).
Answer:
Slope = -2.5
Step-by-step explanation:
use the formula:
y2-y1/x2-x1
Calculate Social Security taxes, Medicare taxes, and FIT for Jordon Barrett. He earns a monthly salary of $13,400. He is single and claims 1 deduction. Before this payroll, Barrett’s cumulative earnings were $128,120. (Social Security maximum is 6.2% on $128,400 and Medicare is 1.45%.) Calculate FIT by the percentage method.
Answer:
Step-by-step explanation:
From the given information:
Social security taxes can be calculated as:
$128,400 - $128,120
= $280
Also, we know that the current monthly salary = $13, 400
So, social security tax is withheld by $280
This implies that:
Social security taxes = 280 × 0.062
= $17.36
The medical care taxes will now be:
= $13,400 × 1.45%
= $194.30
Using the percentage method to calculate the federal income tax; we have:
Use the tax bracket from 2017, marginal tax rate = 28%
∴
federal income tax = $13400 × 0.028
federal income tax = $3752
the sum of three numbers is 78. the third number is 2 times the second. the first number is 6 less than the second. what are the numbers
A new amusement-park ride that lasts 1 minute can have up to 1200 riders per hour. How many riders can ride per minute?
Answer:
20 riders can ride per minute.
Step-by-step explanation:
The picture says to divide to find the number of riders. If we apply this here, we can see that 1200 ÷ 60 is 20.
The reasoning behind this is:
There are 60 minutes in an hour.
If the park ride lasts a minute, then the ride can have 60 rides per hour.
The question states that the ride can have up to 1200 riders per hour, so you need to divide 1200 by 60.
1200 ÷ 60 = 20.
If the temperature at 7:00 am was - 7 degrees C and the temperature rose
8 degrees C during the morning, what was the temperature by noon?
Answer:
Temperature in noon = 1°C
Step-by-step explanation:
Given:
Temperature on 7:00 Am = -7°C
Temperature rose = 8°C
Find:
Temperature in noon
Computation:
Temperature in noon = Temperature on 7:00 Am + Temperature rose
Temperature in noon = -7°C + 8°C
Temperature in noon = 1°C
9. you work a part time job and got your first paycheck from $210. your hourly wage is $8.25. Write and equation that models this situation
a. 8.75 = 210x
b. 210 = 8.75 + x
c. 210 = 8.75 - x
d. 210 = 8.75x
10. you work a part time job and got your first paycheck from $210. your hourly wage is $8.75. how many hours did you work?
a. 3.5
b. 8
c. 4
d. 1
Answer:
9.= D
10.= 3.5
Step-by-step explanation:
-(y + 2) + 8 = 3
I’m so confused on this, please send help
Don't be worried friend :)
-(y + 2) + 8 = 3
=> -(y + 2) = -5
=> y + 2 = 5
=> y = 3
HELP WITH GEOMETRY PLSSS
HELPP PLS I BEG PLSSSS I BEG AHHH
Answer:
1. correct (3+2) x 5 is 5 squared
2. 125 5 cubed is 125
3. 50 10 squared and divided by 2 is 50
Step-by-step explanation:
1. is correct
2. 5x5x5
=25x5
=125
3. 10x10=100
100/2
=50
Hope this helps :)
Answer:
(3+2)*5 ---------> 5 squared
5 cubed --------> 125
10 squared divided by 2 ---------> 50
Step-by-step explanation:
First of all, you don't need to beg. It's all right. You got this!
This question is asking us to simplify what is on the left and match it to the right.
(3+2)*5
5*5= 25
5 squared is 5*5 which is equal to 25
5 cubed is 5*5*5 which is equal to 125
10 squared divided by 2
10*10= 100
100/2= 50
Hope this helps!
Consider the function. find f(5)
Answer:
f(5) = -1
Step-by-step explanation:
f(5) is x = 5.
When x = 5, y = -1.
Therefore, f(5) = -1