Step-by-step explanation:
Given data
let adults be x
and student be y
so
6x+15y= 48-----------1
and
8x+7=38-----------2
solve eqn 1 and 2
6x+15y= 48-----------1X 8
8x+7=38-----------2X 6
48x
+15y= 40
48x+7y= 38
subtract
8y=2
y= 2/8
y= 1/4
y= $0.25
from 8x+7=38
put y= 0.25
8x+7(0.25)=38
8x+1.75= 38
8x=38-1.75
8x=36.25
x=36.25/8
x=$4.5
What value correctly fills in the blank so that the expressions are equivalent?
32 + 72 = blank x (4 + 9)
Answer:
8
Step-by-step explanation:
8*4 is 32 8*9 is 72
so, it is 8
since it is distributive property 8(4+9)
Answer:
8
Step-by-step explanation:
1) simplify the equation
32+72=104
104=4x+9x (distibute the "x")
104=13x
x=8
hence the "blank" is 8
PLEASE HELP IM DESPERATE I have no clue about this
Answer:
B
Step-by-step explanation:
Two linear lines can never intersect twice
Suzanne is putting a fence around her rectangular garden. The length of the garden, x, is 4 feet more than the width. The perimeter of the garden is 32 feet. Write an equation to find the length of the garden.
Enter the correct answer in the box.
Answer:
Length=10 feet
Width=6 feet
Step-by-step explanation:
Let width (W) of the garden is x feet
Then Length=L=4+x feet
Perimeter=P=2(W + L)
P=2(x+x+4)
32=4x+8
4x=32-8
x=24/4=6 feet
W=6 feet
L=10 feet
The fraction: 340 | 3/4
Which quotient equals to the fraction?
A: 3/4 divided by 340
B: 340 divided by 3/4
C: 340/45
D: 340 divided by 75
Answer:
It's A I hope that helps
Step-by-step explanation:
Jessica is measuring two line segments. The first line segment is 300 cm long. The second line segment is 500 cm long. Find the total length of both the line segments.
Answer:
The total length of both the line segments is 800 cm long.
Step-by-step explanation:
Write an equation for the line with a y-intercept of 5
that is perpendicular to the line with equation
y=-3x+2.
Answer:
y = -1/3 x + 5
Step-by-step explanation:
The general equation is y = mx + b
You are told that the y intercept is 5. The point is (0,5)
So far the general equation looks like y = mx + 5
Now we have to find m
The given slope of y = 3x + 2 is 3.
The slope is whatever number is in front of the x
Use this formula for the vertical slope
m * m1 = - 1
m1 = 3
3*m = - 1 Divide by 3
m = -1/3
So the answer you want is y = -1/3 x + 5
can someone help me ill mark you brainliest
Answer:
Equation: x+x+6=20
x=7
Andy completed 16 problems
Step-by-step explanation:
Please help me write an equation for this problem
Answer:
[tex] an \: equation \: for \: this \: problem \:i s \: \to : \\ \boxed{ 7200 = 12t}[/tex]
Step-by-step explanation:
[tex]let \: the \: distance \: be \to \: d \\ \\ let \: the \: speed \: rate \: be \to \: s \\ \\ let \: the \: time \: of \: action \: be \to \: t \\ therefore \to: \\ s = \frac{d}{t} = 12 = \frac{7200}{t} \\ \\ 7200 = 12t \\ [/tex]
The ratio of girls to boys in a class is 4:3. If the total number of students in the class are 28. How many of them are girls?
Solve.
-5 3/4 - 3 1/2
what is 42.925 to the nearest whole, tenths and hundredths
-8 (x-10) - 3 (x+10)
The polygons are similar. The area of one polygon is given. Find the area of the other polygon.
4 cm
12 cm
A = 10 cm
Area =
cm2
Answer:
90 cm²
Step-by-step explanation:
Given that both triangles are similar, it follows that the ratio of their area equals the square of their corresponding sides.
Let the area of the other triangle be x. Therefore:
[tex] \frac{10}{x} = \frac{4^2}{12^2} [/tex]
[tex] \frac{10}{x} = \frac{16}{144} [/tex]
Cross multiply
[tex] 10*144 = 16*x [/tex]
[tex] 1440 = 16x [/tex]
Divide both sides by 16
90 = x
Area of the other polygon = 90 cm²
Answer:
Answer is 90
Step-by-step explanation:
I had this homework and got it right
Solve the equation for p, then justify your reasoning. -9p - 17 = 10
Answer:
p=-17/9 or p=-1.8889
Step-by-step explanation:
-9p-17=10
add 17 to each side
-9p-17+17=10+17
-9p=17
divide both sides by -9
-9p/-9=17/-9
p=-17/9
or p=-1.8889
Solution of equation - 9p - 17 = 10 is p = -3.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
For example, 3x – 5 = 16 is an equation.
Given equation
- 9p - 17 = 10
Add 17 to both sides
- 9p - 17 + 17 = 10 + 17
Adding the numbers
- 9p = 10 + 17
Adding the numbers
- 9p = 27
Divide both sides by - 9
-9p/ - 9 = 27/ - 9
Cancel terms that are in both the numerator and denominator
p = 27/ - 9
Divide the numbers
p = -3
Hence, p = -3 is the solution for equation - 9p - 17 = 10
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Lin has 13 mystery novels. Each month, she gets 2 more. Select all expressions that represent the total number of Lin's mystery novels after 3 months.
answer:
Lin should have about 19 novels in total when you add up all the amounts she gets after 3 months.
Which action completes this
diagram?
Answer: Establish a national bank
Step-by-step explanation:
Find the measure of 2BDC:
B
22°
D
689
78°
112°
158°
Answer:
angle ADC is shown as a 90 degree angle
90 - 22 = 68
so I would go with 68 degrees
You lose 2 points every time you forget to write your name on a test. You have forgotten to write your name 4 times. What integer represents your change in points from forgetting to write your name?
Answer:
-8
Step-by-step explanation: since it says Times, (for me times is multiplication) you would multiply -2 and 4. negative 2 would be from that person losing 2 points. and 4 since it is your total amount of times you have forgotten to write your name. so, -2 x 4 = -8.
how i got -8. both signs from -2 and 4 are different, and when they are different the answer will always be negative.
what is the value of k
-3(k+7)- 5k +4 = 23
a.) k=5 b.) k=-1 c.) k=5 d.)k=1
Answer:12.567
Step-by-step explanation:
HELP ME! thank youu!
Answer:
y=51(Alternate interior angles)
z=40(Alternalte interior angles)
x=89(Sum of angles in a triangle)
Need help finding the value of x
Answer:
The value of x is 26.
Step-by-step explanation:
In a triangle, the total angles is 180°. In order to find the value of x, you have to add up all the angles in terms of x and make it equals to 180°
2x + 3x + 50 = 180
5x + 50 = 180
5x = 180 - 50
5x = 130
x = 130 ÷ 5
x = 26
As we know that,
Sum of all angles of triangle = 180°
Given,
Angles are 2x , 3x and 50°
Now,
[tex] \rightarrow \: 2x + 3x + 50 = 180[/tex]
When plus sign goes to another side then,it become minus.
[tex] \rightarrow \: 5x = 180 - 50[/tex]
[tex] \rightarrow \: 5x = 130[/tex]
[tex] \rightarrow \: x = \cancel \dfrac{130}{5} [/tex]
[tex] \rightarrow \: x = 26[/tex]
Hence,the value of x is 26°.
last month a class collected 240 cans for a canned-food drive. this month the class collected 320 can. what was the percent increase in the numbers of cans collected
Luis knows that he can hike at an average rate of 13 mile in 6 minutes. How many hours will it take Luis to reach Wandering Twin Lake?
Answer:
2 hours
Step-by-step explanation:
The amount of flour that the bakery used this month was a 40% increase relative to last month. The bakery used 75 pounds of flour last month. How much
flour did the bakery use this month?
Answer: 11%
Step-by-step explanation:
so, I’m not going anywhere else to go to the store and I’ll let you know if you need anything or do I need to get something for dinner lol you know what I’m going through and I can’t even imagine what you mean by that time and you have have to do that for you too but I’m just trying to get you to do that that I don’t want to do with that and that I’m going to be a pain and I’m sorry I don’t want you to think that you have been in the hospital and you have no desire for me to come in this week I don’t think I can do anything with your dad and you are just not being mean and I can’t even talk to you and I’m not going through all that I know I don’t know what to do but you are not going through all this nonsense I know that I know what I want you do not need me but you know me I love that I don’t know if I will ever do that anymore but you are not even in my mind for a while but you are not so much and I’m sorry I just want to make sure that I have no idea that I’m going to have to be a friend of my best relationshi.
What is the distance from M to N?
HELPPP ME PLEASE HURRY IM GIVING BRAINLIST!!!!!!!!
50 POINTS!!!!! NO TROLLING PLZ!!
Answer: B. 14 units
Step-by-step explanation:
Answer:
it’s not 14 units, that’s all i know
Step-by-step explanation:
got it wrong on ap3x
Easy question.. pls anwser
Answer:
Its B: -18
Step-by-step explanation:
- - makes a +
-57+37=-18
Answer: it’s B
hope this helps
Three vertices of parallelogram ABCD are A(0,2), B(8,1), and D(3,4). Find the coordinates of vertex C.
Answer:
my answer is(5,7) thats may answer
A parallelogram is a quadrilateral that has two pairs of parallel sides.
In a parallelogram, opposite sides and angles are equal.
The adjacent angles add up to 180 degrees.
The coordinates of vertex C are (11, 3).
What is a parallelogram?A parallelogram is a quadrilateral that has two pairs of parallel sides.
In a parallelogram, opposite sides and angles are equal.
The adjacent angles add up to 180 degrees.
We have,
Three vertices of the parallelogram ABCD.
A = (0, 2)
B = (8, 1)
D = (3, 4)
C = (x, y)
A___________B
/ /
/ O /
/ /
D C
Now,
AO = OC
BO = DO
O is the midpoint of BD.
O =(m, n)
m = (8 + 3) / 2
m = 11/2
n = (1 + 4)/2
n = 5/2
O = (11/2, 5/2)
Now,
O is the midpoint of AC.
m = (x + 0)/2
11/2 = x/2
x = 11
n = (y + 2)/2
5/2 = (y + 2)/2
y + 2 = 5
y = 3
The coordinates of C.
= (x, y)
= (11, 3)
Thus,
The coordinates of vertex C are (11, 3).
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Find the slope of the line passing through the points (-5,6) and (6,6).
slope:
Answer:
0
Step-by-step explanation:
the equation on finding slope is y2 - y1/x2 - x1
so it is...
6 - 6 = 0
6 - -5 = 11
0/11 but that doesnt work so I believe the slope is zero because the denominator is not the one being a 0
hope I helped ;)
Answer: its a zero slope
Step-by-step explanation: i just put them on a graph - uh i think there is another way to do it but i forgot
Krutika is 11 years older than Gordon. Pip is 12 years younger than Gordon. If the total of their ages is 77, how old is the youngest of them?
(GIVING BRAINLIEST!!)
There is 1/3 of a pie shared equally between 5 children. How much of the pie does each child receive?
A)1/9 pie
B) 1/15 pie
C) 1/18 pie
D) 1/20 pie
Answer:
B) [tex]\displaystyle \frac{1}{15}[/tex]
Step-by-step explanation:
Shared eqyally signals division:
[tex]\displaystyle \frac{1}{3} \div 5 = \frac{\frac{1}{5}}{3} = \frac{1}{5} \times \frac{1}{3} = \frac{1}{15} \\ \\ OR \\ \\ \frac{1}{3} \div 5 = \frac{1}{3} \times \frac{1}{5} = \frac{1}{15}[/tex]
I am joyous to assist you at any time.