Answer:
Step-by-step explanation:
[tex]a+c=236\\ \\ a=236-c\\ \\ 1.5c+2.5a=525\\ \\ 1.5c+2.5(236-c)=525\\ \\ 1.5c-2.5c+590=525\\ \\ -c=-65\\ \\ c=65\\ \\ a=236-65\\ \\ a=171\\ \\ \text{So there were 171 adults and 65 children at the pool that day.}[/tex]
The price of a watch was increased by 20% to £162.
What was the price before the increase?
Answer:
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A car is traveling at a speed of 50 meters per second. What is the cars speed in kilometers per hour? How many kilometers will the car travel in 3 hours?
Answer:
180 kilometers per hour, 540 in 3 hours
Suppose there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 58.3°F, what will be the temperature when the plane reaches an altitude of 2,000 ft?
Answer: 55.1°F
Step-by-step explanation:
We are informed that there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky, if the plane reaches an altitude of 2,000ft, the drop in temperature will be:
= 1.6° × 2
= 3.2°F
If the temperature on the ground is 58.3°F, then the temperature when the plane reaches an altitude of 2,000 ft will be:
= 58.3°F - 3.2°F
= 55.1°F
Ashton plays three games of checkers with his grandmother. Identify the
sample space (the correct list possible outcomes) for Ashton's results.
W = win, L = loss
The notation WLL means Ashton won the first game, lost the second game,
and lost the third game.
A. {WWWW, WLWL, LLLL}
B. {WW, WL, LW, LL}
C. {WWW, WWL, WLW, WLL, LWW, LWL, LLW, LLL)
D. {WWW, WWL, LLL}
Answer:
C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
- 9b = - 45
i need help asap pls
Answer:
b=5
Step-by-step explanation:
Answer:
b=5
Step-by-step explanation:
Not copying....
have a nice day
Travis wants to build a small rectangular fence. He has enough material to build a fence that has a perimeter of 100 feet. Let x represent the length of the fence in feet.
Travis wants to use all of the available materials. What values of x will fence in an area of at least 600 square feet?
Answer:
x=250?
Step-by-step explanation:
you being vague bro
Help me I need the answer ASAP I’ll give brainliest
Answer:
number 2
Step-by-step explanation:
4/10 and 10/25 are equal : proportionate
The distributive property:
a. 7.4x + 0 = 7.4x
b. 2.7(x + y) = 2.7x + 2.7y
c. 7z x 1 = 7z
d. (2.3 + 3a) + 5a = 2.3 + (3a + 5a)
e. z(0.2) = 0.2z
f. 0.2(5 x w) = (0.2 x 5) x w
g. 2.73 + x = x + 2.73
Need the answer please will give brainliest
Answer:
B.move to the left 4 units then up 7 units.
A school’s toilets are broken. Don’t Flush Plumbing Company ™ charges $50 for a service call plus $10 per hour. Fire-in-the-Hole Plumbing™ charges $90 for a service call plus $5 per hour.
At what number of hours do both companies charge the same amount?
If the job takes 7 hours, which company charges the school the least amount of money ?
Answer:
Did you know that Aronson and Carnes-McNaughton's have the perspective on how they study
ancient things from the past.I agree that Aronson will agree with Carnes--McNaughton's statement because they both said the same thing but just in different words. For example in the book "If Stones Could Speak," it will tell what Aronson statement was about when it comes to archaeology and in "Profiles Of Archaeologist," it will tell you the same statement but just in different words. For example it states in the book "If Stones Could Speak," on page 56 "Marc Aronson believes that, “It is about putting aside what you think you know, what has been passed along, and being willing to trust what you yourself see and to test it rigorously.” From this quote the reader will now know what Aronson thinks when it comes to archaeology. In "Profiles Of Archaeologist." On paragraph 19 It states "Being an archaeologist means looking at the world around us in a different perspective. We live in the present as we study the past in order to learn what to do in the future---- on this planet and possibly other. We learn to be humanities while at the same time we practice as scientists. From this quote the reader can understand that both of these statements are similar but they are just reworded. In closing, This why I think that Aronson and Carnes will agree to what to what there statement was.
Step-by-step explanation:
Answer:
Part 1: At eight hours they both charge the same.
Part 2: Flush Plumbing charges the least
Step-by-step explanation:
Part 1:
Flush Plumbing Co Equation: 50 + 10 h (h = hours)
Fire-in-the-hole Plumbing: 90 + 5h (h = hours)
50 + 10h = 90 + 5h
Solve the Equation:
5h = 40
h = 8
Part 2:
Plug in 7:
Flush Plumbing: 50 + 10 x 7 = 50 + 70 = $120
Fire-in-the-hole Plumbing: 90 +5 x 7 = 90 +35 = $125
Flush plumbing chargers the least
Hope this is helpful!
CAN SOMEONE HELP ME PLEASEEE
Answer:
a. 45 degrees
b. 315 degrees
c. 8π
d. π
e. 7π
f. 16π
g. 2π
Write in Slope Intercept form
Answer:
y=5/2x
Step-by-step explanation:
the y intercept is (0,0) so it isn't included in the equation. now we know the middle solution isn't correct. the points we use to find slope are (-2,-5) and (2,5) which ends up being 5/2.
Use the foil method to check your answer 3(x+1)(x+2)
Answer: Your input: multiply (x+1)(x+2) using FOIL.
((x)+(1))((x)+(2))=(x)⋅(x)First+(x)⋅(2) Outer+(1)⋅(x) Inner+(1)⋅(2) Last=
=(x2)+(2x)+(x)+(2)=
=x2+3x+2.
Answer: (x+1)(x+2)= only look at this
-3 is a zero for the polynomial:
x^3 + 7x^2 + 16 x + 12
True or False
Answer:
true
Step-by-step explanation:
If x = - 3 is a zero of the polynomial then f(- 3) = 0
f(x) = x³ + 7x² + 16x + 12
= (- 3)³ + 7(- 3)² + 16(- 3) + 12
= - 27 + 63 - 48 + 12
= 0
Since f(- 3) = 0 then x = - 3 is a zero of the polynomial
I really need this one answered, I just can’t figure it out.
Use quadrilateral ABCD. What value for m DAB would show ABCD is a parallelogram?
Answer:
m∠DAB = 101°
x = 7
y = 12
Step-by-step explanation:
Properties of a parallelogram,
1). Opposite sides of a parallelogram are equal and parallel.
2). Opposite interior angles are equal in measure.
3). Consecutive interior angles are supplementary.
By the first property,
BC ≅ AD
2x + 4 = 3x - 3
3x - 2x = 4 + 3
x = 7
AB ≅ CD
2y + 10 = 3y - 2
3y - 2y = 10 + 2
y = 12
By second property,
m∠ABC = m∠ADC
2z + 15 = 3z - 17
3z - 2z = 15 + 17
z = 32
Therefore, m∠ADC = (3z - 17)°
= 3(32) - 17
= 96 - 17
= 79°
By third property,
m∠ADC + m∠DAB = 180°
79° + m∠DAB = 180°
m∠DAB = 180° - 79°
m∠DAB = 101°
If x = 3 and y = 5, work out the value of a) 4x - 2y
b) 2x2 + 3y2
Answer:
A) 12-10
B)36+225
Step-by-step explanation:
A) 3x4=12, 5x2= 10= 12-10
B) 3x2=6x6=36, 3x5=15x15=225=36+225
For x = 3 and y = 5 the values of the given expressions are (a) 4x - 2y = 2 and (b) 2x² + 3y² = 93.
What is substitution?Substitution is a mathemaical technique for replacing variables with specific or covnient values according to the context.
When the values of variables are given to solve an equation we just have to replace those numerical values in place of the given variables.
Given, x = 3 and y = 5.
∴ 4x - 2y is,
= 4(3) - 2(5).
= 12 - 10.
= 2.
And
2x² + 3y².
= 2(3²) + 3(5²).
= 2(9) + 3(25).
= 18 + 75.
= 93.
learn more about substitution here :
https://brainly.com/question/16609931
#SPJ2
Which angles are corresponding angles?
Check all that apply.
The corresponding angles are
2 and 6
3 and 7
5 and 3
and, 4 and 8
What are corresponding angles?
Any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal are called corresponding angles.
Or, when two parallel lines are intersected by a third one, the angles that occupy the same relative position at each intersection are known to be corresponding angles to each other.
According to the given question.
We have a diagram, in which there are two parallel lines and one another line which is intersecting these two lines.
From the given diagram,
The pairs of angles 2 and 6, 1 and 5, 3 and 7, and 4 and 8 are occupying the same relative positions, upper right side, upper left side, lower left side, and lower right side respectively.
Therefore, we can say that angles
2 and 6
3 and 7
5 and 3
and, 4 and 8
are corresponding angles.
Find out more information about corresponding angles here:
https://brainly.com/question/1597341
#SPJ2
What is 1 3/7 plus 2/28 (simplify it)
Answer:
3/2 or 1.5
Step-by-step explanation:
please like if this helped
Answer:
1/2
Step-by-step explanation:
What is the scale factor in the dilation?
1/6
1/3
3
6
Answer: yes its 3! I took the test its 3
Step-by-step explanation:
ahhhhhhhhhhhhhhhhhhhh
Answer:
10.2
Step-by-step explanation:
30 Points!!!! I NEED HELP FAST
Answer:
X = 4
Step-by-step explanation:
414 - 108 - 130 = 176
13x + 11x + 5x + 10x + 5x = 176
44x = 176
x = 4
1. 30-70h=30
2. 300+70h=-30
3. 300-70h=-30
4. 300+70h=30
Anyone want points or brainiest here is a question. What is 4-1!
:D
Answer:
it would 41 amiright?
Answer:
4-1=3
Step-by-step explanation:
hope it helps and have a great day :)
Write the GCF. Then factor using the distributive property. Check your answer by applying the distributive property. 8 + 12
Answer:
yo mumu
Step-by-step explanation:
all rational numbers are integers trure or false
-5=n-8/4
What is happening to the variable?
How do you solve for the variable?
Answer:
n=-3
Step-by-step explanation:
Alrighty, now if I understood the problem correctly, we can simplify it to:
-5=n-2
We do +2 on both sides, and -5+2 is -3
So, n=-3
Answer:
n= -3
you move the variable to the other side it has to be by it self on the other side of the equal sigh
Step-by-step explanation:
-5 =n-2
-5+2=n
-3=n
n=-3
Evaluate the expression for k = 2.
4k2 =
Answer:
16
Step-by-step explanation:
4*2*2
8*2
16
Answer the fist question shown asap
We can draw the line y = 1 and reflect the triangle XYZ over it.
WILL GIVE BRAINIEST!!!!!!!!
Answer:
y = -5/2x +4
Step-by-step explanation:
First, make the equation into standard form.
5x + 2y = -10
2y = -5x - 10
y = -2.5x - 5
In order for two lines to be parallel, they must have the same slope. (In y = mx + b, "m" is the slope)
The slope in y = -2.5x - 5 is -2.5, so we need to find an equation with a slope of -2.5 (or -5/2)
In y = -2/5x - 8, the slope is -2/5
In y = 2/5x + 7, the slope is 2/5
In y = 5/2x - 6, the slope is 5/2
In y = -5/2x +4, the slope is -5/2.
Thus, y = -5/2x +4 is the right answer