Answer:
the answer is negative 11.55
Step-by-step explanation:
-2.4+-5.3=-7.7.
7.7(1.5)=-11.55
The ratio of children to adults at a swimming pool is 8:3. If there are a total of 110 people at the pool, how many of them are adults?
There are 30 adults in the swimming pool.
The ratio is a quantitative approach that shows the relation between two proportions.
From the given relation, the ratio of of the children to adults = 8 : 3
The total number of the ratio = 8 + 3 = 11
Given that there are 110 people in the population.
The number of adults that are there will be:
[tex]\mathbf{=\dfrac{3}{11}\times 110}[/tex]
= 30 adults
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Note: Your teacher will grade your response to this question to ensure you receive proper credit for your answer. 16. A triangle has side lengths of 6, 8, and 10. Is it a right triangle? Explain.
Answer:
yes
Step-by-step explanation:
6^2+8^2=10^2
following the pythagoras theorem this triangle is right triangle
can someone please help me!! this assignment is due at 11:59 I need this done
Answer:
x=16.782
Step-by-step explanation:
a=40*
b=20
c=90*
d=40* (corner in lower right corner, we know it equals 40* because all triangles equal 180*)
e=26.108 (bottom side)
Hope this helps! BH
How to find zeros of cubic polynomial.
Step-by-step explanation:
1. First divide by the leading term, making the polynomial monic.
2. Then, given x
2 + a1x + a0, substitute x = y − a1 to obtain an equation without the linear term.
(This is the “depressed” equation.)
3. Solve then for y as a square root. (Remember to use both signs of the square root.)
4. Once this is done, recover x using the fact that x = y − a1
A radioactive isotope decays at the rate indicated by the exponential function A (t) =800 (1/2) ^ t/1500, where “t” is the time in years and A(t) is the amount of the isotope, in grams, remaining what is the initial mass of the isotope?
A. 200 grams
B. 900 grams
C. 800 grams
D. 400 grams
Jon bought a car that costs $2150. He paid $750 down and made a payment of $95 at the end of the first month. How much did he still owe?
Answer:
$1,305
Step-by-step explanation:
subtract how much he paid for the car with how much he paid down
2150-750=1400
then subtract that by the 95 dollars he paid off in the first month
1400-95=1,305
He still needs to pay off $1,305.
Hope this helps!!
How long does it take to get sat results.
What is the area of this tile?
Answer:
i think its 16 but im not sure
Step-by-step explanation:
6+6+2+2= 16 but im not sure if that how u do it or not
it's been so long since i've done that stuff. 12 in i think
identify if the graph represents quadratic function
Answer:
Graph #2 for sure, both axis are linear and the curve is a parabola all right.
On graph #1: I can't for the life of me read the units on the Y axis, so you have to check: if they're going 2000 4000 6000, then that is a parabola as wel. If they're increasing esponentially, ie 2000 4000 8000, then one of the two axis is logarithmical and the curve is no longer quadratic.
Evaluate [tex]\frac{bd}{a}[/tex] + c if a=−2a=-2 , b=3b=3 , c=−12c=-12 , and d=−4
Answer:
{a,c,d,b} = {49/16,29/16,2,-31/48}
Step-by-step explanation:
[1] 3a + c - 4d = 3
[2] -4a + 4c + d = -3
[3] -a - 2d + 3b = -9
[4] - d = -2
// Solve equation [4] for the variable d
[4] d = 2
// Plug this in for variable d in equation [1]
[1] 3a + c - 4•(2) = 3
[1] 3a + c = 11
// Plug this in for variable d in equation [2]
[2] -4a + 4c + (2) = -3
[2] -4a + 4c = -5
// Plug this in for variable d in equation [3]
[3] -a - 2•(2) + 3b = -9
[3] -a + 3b = -5
// Solve equation [1] for the variable c
[1] c = -3a + 11
// Plug this in for variable c in equation [2]
[2] -4a + 4•(-3a+11) = -5
[2] -16a = -49
// Solve equation [2] for the variable a
[2] 16a = 49
[2] a = 49/16
// Plug this in for variable a in equation [3]
[3] -(49/16) + 3b = -5
[3] 3b = -31/16
[3] 48b = -31
// Solve equation [3] for the variable b
[3] 48b = - 31
[3] b = - 31/48
// By now we know this much :
a = 49/16
c = -3a+11
d = 2
b = -31/48
// Use the a value to solve for c
c = -3(49/16)+11 = 29/16
Step-by-step explanation:
so bd/a+c= 3×(-4)/-2 +(-12)= -12/-2+(-12)=6+(-12)=6-12=-6
so the answer is -6
Teddy
1House A is twice as tall as House B. How tall is House B?
House
Height (ft)
A
24
B
Answer:
12
Step-by-step explanation:
House A is 24. So divide it by two to get 12. Which is house B
Which of the following correctly shows the next two terms after -40 in the pattern?
−10, 20, −40
A: -2.5, 5
B: 80, -160
C: 80, 160
D: 60, -80
Answer:
B
Step-by-step explanation:
the pattern is clearly :
the absolute value of the next term is twice the absolute value of the previous term. and the sign flips with every new term.
so, after -40 comes then 80, then -160, then 320, then -640, ...
what is the coefficient of the first term in the expression 8x+3y+4
a: y
b: 3
c: x
d: 8
Answer:
d
Step-by-step explanation:
the first term is 8x. 8 is the coefficient and x is the base. so the answer is 8.
help for brianlies nad 5 stars with many points
Step-by-step explanation:
I hope you understand it. Thank you for 50 points
Refer to the attachment
Help is very much appreciated thank you!!!
Answer:
2 <= x < 8
Step-by-step explanation:
2 is less than or equal to x and the symbol for that is <=
the least number should also be on the left side
8 is greater than x so the symbol is <
8 is the biggest number and goes on the right
what multiplication fact can you double to find 4 x 7?
Answer:
2 x 7
Step-by-step explanation:
4 x 7 = 28
Since you want doubled, we have to half to find start.
28/2 = 14
Only solid equation that equals 14 is 2 x 7
And since 4 is a double of 2, the answer checks out
The multiplication fact that can be doubled to find 4 x 7 is
2 x 7.
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,
4 x 7 = 28
Now,
The multiplication of 2 x 7 = 14.
If 2 x 7 is double we get,
2 x (2 x 7) = 2 x 14 = 28
Thus,
The multiplication fact is 2 x 7.
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Please help fast i will mark you if you get it right
Answer:
6/1 * 2/3= 4
5/6 - 3/4= 1/12
3/5 / 1/3= 9/5
Step-by-step explanation:
Can someone tell me the slope of this graph
Answer:
Slope = 3
Step-by-step explanation:
The formula to find the slope of a graph using two points is:
m = Δy/Δx
where m is the slope
We can start off by choosing two points on the graph. Two easy ones to pick out would be (6,30) and (1,15). Notice that the 15 and the 30 are y-coordinates and the 6 and the 1 are x-coordinates. To find the slope we will do
m = Δy/Δx = (30-15)/(6-1)
= 15/5
= 3
Thus the slope of this graph is 3
A hot-air balloon is 1000 feet off the ground and its altitude is slowly changing at a constant rate of −412 feet per second.
How many seconds, s, will it take for the balloon to drop to below 215 feet?
Drag and drop a symbol and value to correctly complete the solution to this inequality.
Answer:
[tex]<174\frac{4}{9}[/tex] hopes this helps :D
Step-by-step explanation:
The solution is s > 174 4/9
The inequality equation is s > 174 4/9 and it will take 174 4/9 seconds for the hot air balloon to reach below 215 feet
What is an Inequality Equation?
Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is given by
Let the total altitude of the hot air balloon be = 1000 feet
Now , the hot air to reach below 215 feet , the hot air balloon should descend a total of = 1000 - 215 feet
So , the value of hot air balloon should descend = 785 feet
And ,
The rate at which the hot air balloon descends = 4 1/2 feet per seconds
So , the number of seconds s for the hot air balloon to reach an altitude more than 785 feet is given by the inequality equation A
where ( 4 1/2 ) x s > 785
On simplifying the equation , we get
( 4 1/2 )s > 785
( 9/2 ) s > 785
Multiply by 2 on both sides of the equation , we get
9s > 1570
Divide by 9 on both sides of the equation , we get
s > 174 4/9
Therefore , the value of A is s > 174 4/9
Hence ,
The inequality equation is s > 174 4/9 where s is the number of seconds
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find the value of x in the triangle.
[tex] = > 3x + 15 + 4x + 12 = 180 \\ = > 7x + 27 = 180 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = > \: 7x = 180 - 27 = 153 \: \: \: \: \\ x = \frac{153}{7} = 21 \\ x = 21[/tex]
Pls help ASAPI don’t understand can you show steps too pls
Answer:
x = -2 , y = -1
(-2,-1)
Write an equation in slope intercept form of the line
Answer: y=-1/4x+4
Step-by-step explanation:
slope goes down 1, and right 4 so it's -1/4. Y-intercept is positive 4 so it will be +4
50 points and brainliest to first correct answer. And NO LINKS. Ty :)
If ABCD is dilated by a scale factor of 2 about point E, which of the following is true about line E prime F prime?
Square ABCD is shown with line EF running horizontally through the center of the figure.
Question 2 options:
line E prime F prime is perpendicular to line EF.
line E prime F prime is parallel to line EF.
line E prime F prime intersects with point B′.
line E prime F prime passes through the center of dilation.
Go here to see the image (it wouldnt let me attach it). The answer on this one doesnt seem right so someone pls give correct answer :)
https://brainly.com/question/24244927
Is this the question below if it is the answer is..
Answer/Step-by-step explanation:
line E prime F prime passes through the center of dilation.
Vanessa walks her puppy 12 of a miles in 20 minutes. How far does she walk her puppy in 1 hour?
Show work. (Type answer in word form)
Answer:
thirty-six of a miles or [tex]36[/tex] miles of a miles <--- I didn't know if you meant regular miles
Step-by-step explanation:
We can convert 1 hour to 60 minutes
[tex]60\div20=3[/tex]
Since it is [tex]3[/tex] [tex]times[/tex] the time and we assume her rate is consistent we multiply 3 by 12
[tex]3\cdot12=36[/tex] of a miles
thirty-six of a miles
Brainliest please :)
Answer:
Vanessa walks her puppy for 36 miles in 1 hour.
Step-by-step explanation:
She walks 12 miles in 20 minutes
1 hour = 60 minutes
There are 3 - 20 minute periods so she walks her puppy 12(3) miles, or 36 miles
-Chetan K
Find the number that makes the ratio equivalent to 1:2.
6:
What is it
A car travels 60 miles per hour. What is the total distance the car will travel in 60 minutes?
Answer:
The car will drive 60 miles in 60 minutes (an hour)
Step-by-step explanation:
For every hour driven (60 minutes) the person will drive 60 miles, therefore it will travel a distance of 60 miles in 60 minutes
Hey can you check the problems I have done and explain the ones I don't
i cant see very clearly the paper, however here is everything i can see and how i think they should be solved:
find the value of x and y
from geometry
urgently
Sketch the graph of each line by identifying the x-and y-intercepts.
Answer:
Slope: 5/3, Y-intercept: (0,-3)
Step-by-step explanation:
`
The scale factor from A DEF to A ABC is
6
5
ООО
4.5
Answer:
Between the edges of the first two triangles there is a ratio. To find this ratio, you need to ratio one edge of a small triangle to one edge of a large triangle. So 5/30=6/36=8/48=1/5. The ratio we want to find is 1/5 or 5.