Answer:
a)9:7 b) 9:16 c) 7:16
Step-by-step explanation:
the no of girls (320-180)=140
a) ratio of no of boys and girls=180/140=9/7=9:7
b)ratio of boys and total pupil=180/320=9/16=9:16
c) ratio of the girls and pupils=140/320=7/16=7:16
Answer:
a) 9:7 (9 being the boys,7 being the girls)
b)9:16 (9 being boys, 16 being the total pupils)
c)7:16 (7 being girls, 16 being the total pupils)
Step-by-step explanation:
a) No. of girls= 320-180
=140
Boys: Girls
180 : 140 [ ÷ 20]
9 : 7
b) Boys: Pupils
180 : 320 [ ÷ 20]
9 : 16
c). Girls: Pupils
140 : 320 [ ÷ 20]
7 : 16
9x+y=8 solve for y I dont know how to get y by itself im very confused pls hellp
Answer:
Hey angel i have missed talking to you on padlet and i hope we are still friends
Step-by-step explanation:
Step-by-step explanation:
subtract 9x from both sides
y = -9x+8
Erica runs 5.3 kilometers every morning. One day, she runs 0.95 kilometers and then stops to take a break. How much further does Erica have left to run?
Answer:
1foot(ft.)1yard(yd.)1mile(mi.)===12inches(in.)3feet(ft.)5,280feet(ft.)
Step-by-step explanation:
(4 x 10^-2) x (1 x 10^5)
A) 5 x 10^3
B) 4x 10^3
C) 4 x 10^-7
D) 4 x 10^-10
Answer:
the answer is b!!
Sally buys a large drink every day for a full year (365 days). Each drink costs $2.82. Sally always pays $3.00 and drops her change in the tip
jar.
Which is the amount Sally tips in a year?
Answer:
$65.70
Step-by-step explanation:
She would be giving 18 cents each day for 365 day so you multiply 18x365 which equals 6570 and that written in dollars is $65.70
what is the equation of the line parallel to the line y=1/4x+5 and passing through the point (2,-1)
Answer:
The answer is
[tex]y = \frac{1}{4} x + \frac{1}{2} [/tex]Step-by-step explanation:
Equation of a line is y = mx + c
where
m is the slope
c is the y intercept
To find the equation of the parallel line we must first find the slope of the original line
The equation of the line is
y = 1/4x + 5
Comparing with the general equation above
Slope / m = 1/4
Since the lines are parallel their slope are also the same
Slope of parallel line = 1/4
So the equation of the line using point (2,-1) and slope 1/4 is
[tex]y + 1 = \frac{1}{4} (x - 2) \\ y - 1 = \frac{1}{4} x - \frac{1}{2} \\ y = \frac{1}{4} x - \frac{1}{2} + 1[/tex]
We have the final answer as
[tex]y = \frac{1}{4} x + \frac{1}{2} [/tex]
Hope this helps you
the midpoint of ab is m (3,-4). If the coordinates of A are (8,-5), what are the coordinates of B
Answer:
work is attached and shown
The coordinates of the midpoint will be (-2,-3).
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
A midpoint is a point that lies on a line connecting two other locations and is in the middle of the line. Given that the midpoint of AB is M(3,-4) and the coordinates of A are (8, -5).
The midpoint will be calculated by using the formula below:-
( 8 + x ) / 2 = 3
( 8 + x ) = 6
x = -8 + 6 = -2
( -5 + y ) / 2 = -4
( -5 + y ) = -8
y = -8 + 5 = -3
Therefore, the coordinates of the midpoint will be (-2,-3).
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HELP ME PLZ, I GIVE BRAINLIEST TO THE PERSON WHO GET'S IT RIGHT
Answer:
f(x)+3 =9+3 =12
2f(x)=2*9=18
2f(x)+3= 18=3 =21
Eliminate the y in the following system of equations. What is the result when you add the two equations?
x+y=2
3x-4y=27
A.7x=29
B.x=-23
C.7x=35
D.4x=29
Answer:
C
Step-by-step explanation:
x + y = 2
Subtract x from both sides;
y = -x + 2
3x - 4y = 27
Substitute y;
3x - 4(-x + 2) = 27
Distribute;
3x + 4x - 8 = 27
7x - 8 = 27
Add 8 to both sides;
7x = 35
Divide both sides by 7;
x = 5
Can someone help please
Answer:
[tex]x > \frac{16}{3} [/tex]
Step-by-step explanation:
[tex]4x - 8 > 24 - 2x \\ 4x + 2x > 24 + 8 \\ 6x > 32 \\ x > \frac{16}{3} [/tex]
A very large book has pages numbered from 1 to 11521. How many times is the digit 3 printed? Helppp
Answer:
The total number of pages from page X to page Y is Y minus X plus 1.
So from 1 to 9, there are 9 minus 1 is 8 plus 1 is 9.
Step-by-step explanation:
what would be 30 +40
Answer:
70
Step-by-step explanation:
30 + 40 = 70
PLEASE HELP! convert y=1/3x+9 to POINT SLOPE form
Answer:
y-10=1/3(x-3)
Step-by-step explanation:
I really don't want to explain, but tell me if you want an explanation and I will give it
HELP ASAP my answer is B im pretty sure im wrong..
Joe works for McDonalds. He was required to buy a uniform that costs $35 and he will earn $10 per hour. The
following function represents his overall income the first month. f(h) = 10h - 35. The h represents the hours he
works. What is the independent variable?
Answer:
The independent variable is the number of hours Joe works.
Chuck is making a scale drawing of his house. He is using the scale 1 inch = 5 feet. The dimensions of his actual house are 45 feet by 75 feet. What are the dimensions of Chuck’s house on the drawing?
Answer:
9 inch by 15 inch
Step-by-step explanation:
45/5=9 in
75/5=15 in
If the original rectangle has an area of 2 cm squared and the scaled copied has an area of 50 cm squared what is the scale factor used to draw the scaled copy
Answer:
The scale factor used to draw the scaled copy is a factor of 5
Step-by-step explanation:
Here, we are interested in calculating the scale factor which was used to transition the original rectangle to the new scaled copy.
Firstly, there is a way to relate how the scale factor of the sides relate to the scale factor of the area. What we are saying here is that the scale factor of the sides is never equal to that of the area;
For a 2 cm^2 area let’s say the sides are 1 by 2 ; this gives us an area as said
Now, to get 50cm^2, we can see that the scale factor of both areas is 25 (2 to 50)
So the area has been scaled 25 times the original area. So how has the sides been scaled?
Using a general principle, the scale used to scale the area is the square of the scale used to scale the sides. What are we saying here? if the area is scaled by 4, then the sides are scaled by 2
So in this particular case, the area is scaled by a factor of 25
Now, the scale factor of the sides will be the positive square root of this which is 5
Hence, we can conclude that the sides of the smaller triangles were each multiplied by 5 to arrive at the sides of the bigger one which makes it that the scale factor used to draw the scaled copy is 5
What is 4(5n+7)-3n=3(4n-9)
Simplified?
Please help this us due tomorrow and I’m stuck
60 is 1/100 of _______
Answer:
that is 60 percent (calculated percentage %) of number 100? Answer: 60.
A rectangle is 28 centimeters long and 9 centimeters wide.
What is the perimeter of this rectangle?
37 cm
0 56 cm
O 65 cm
O 74 cm
N
Answer:
74
Step-by-step explanation:
2(28x9)
74 is the perimeter
the product of -3 and the square of a number decreased by 8.
Answer:
[tex]n^{2}(-3) -8[/tex]
Step-by-step explanation:
So the "product of" means the answer to a multiplication problem. That means -3 is being multiplied by a number which is squared. I used the variable "n" for number but you could use any letter you want.
This is what we have so far,
[tex]n^{2} \\[/tex] x -3 or [tex]n^{2}[/tex](-3)
The term decreased means to reduce or subtract. Which means we are left with....
[tex]n^{2}(-3) -8[/tex]
Hope that helps and have a great day!
Did I do this right?
Answer:
no i dont think so
Step-by-step explanation:
1) multiply both sides by p
5/9=-10p
2) divide by -10 to get p
5/9 divided by -10/1
(keep, change flip)
5/9* -1/10
-5/90
therefore p=-5/90
Answer:
No, the answer is -18
Step-by-step explanation:
[tex]\frac{5}{9}[/tex]p = -10
[tex]\frac{5p}{9}[/tex] = -10 CROSS MULTIPLY
-90=5p DIVIDE BOTH SIDES BY 5
-18 = p
A freight company using a semi truck has been hired to transport a container with a mass of 64,0000 mg. The truck can carry a maximum load of 5920 kg. Can the truck safely carry the container?
Answer:
Yes, many times over.
Step-by-step explanation:
I'm sure there is a typo in the question.
640,000 mg = 0.64 kg
What value of x makes the equation true?
147 = 5(1 - 7x) + 2
Answer: X = -4
Step-by-step explanation:
first you need to solve, so do what needs to be done in the equation, which is just multiply and add
147 = 5 - 35x + 2
147= 7 -35x
get rid of the numbers around x, which would be subtracting 7 from both sides
140 = -35x
x = -4
-5 + a =21 what’s A?
Answer:
A=21+5
A=26
Step-by-step explanation:
just shift 5 to right side
y is directly proportional to x when y=30, x=6
a) work out an equation connecting y and x
b) work out the value y when x=12
Answer:
a) y = 5x
b) y = 60
Step-by-step explanation:
Since, y is directly proportional to x when y=30, x=6
[tex] \therefore \: y \: \alpha \: \: x \\ \therefore \: y = kx ...(1) \\ plug \: y = 30 \: and \: x = 6 \: in \: eq \: (1)\\ 30 = k \times 6 \\ k = \frac{30}{6} \\ k = 5 \\ plug \: k = 5 \: in \: (1) \\ y = 5x....(2) \: (required \: equation) \\ plug \: x = 12 \: in \: eq \: (2) \\ y = 5 \times 12 \\ \huge \red{ \boxed{y = 60}}[/tex]
Can anyone help me?
Joseph Cheyenne is earning an annual salary of $24,895. He has been offered the job in the ad. How much more would he earn per month if he is paid:
a. the minimum?
b. the maximum?
The correct option will be the option b i.e., the maximum.
It is given that Joseph is earning an annual salary of $24,895. Later he is offered with an ad.
We have to choose the correct option i.e., the minimum or the maximum he would earn per month if he is paid.
What would be the value if x is added to 40 ?
The value will be 40 + x.
Let's assume Joseph is paid $ x for the ad.
Annual salary of Joseph $24,895.
The salary which he will get after the ad offer will be ;
= 24895 + x
So , the annual salary get's increased after the addition of salary of ad offer.
Thus , the maximum Joseph would earn per month and the correct option is option b.
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52 regular playing cards are randomly dealt to four players with each players receiving 13 cards. What is the probability that each player will have exactly one ace
Answer:
The probability is 1/28,561
Step-by-step explanation:
Here, we want to find the probability that each of the players will receive exactly one ace.
In a deck of cards, we have 4 suites of 13 cards each, with each of the suites consisting of 1 ace.
So, the probability of getting an ace for each of the four players will be 4/52 = 1/13
Now, the probability of each of the players getting exactly one ace will be; first got one ace , second got one , third got one and fourth got one.
mathematically, this probability will be 1/13 * 1/13 * 1/13 * 1/13 = (1/13)^4 = 1/28,561
Drag the red vertical line to find the y–values: Orange graph:> when x 1, y = Blue graph: when x 1, y =
Answer:orange graph =-2
Blue graph -2 or 2
Step-by-step explanation:
The value of the orange graph at x=1 is y = [tex]\rm \pm[/tex]2, the blue graph has the value y = -2.
What is a Graph?A graph is a display of the ordered pairs of a function.
The orange graph is a parabola and the blue graph is a straight line.
The intersection of both the graphs is at x =1
when x =1 , the orange graph has a value y = [tex]\rm \pm[/tex]2
when x=1, the blue graph has value y = -2
Therefore, the value of the functions has been determined at x = 1.
The complete question is attached with the answer.
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Ninety-two is all of the following except _____.
a term
an expression
a constant
a variable
Answer:
hello!
ninety two is a term, an expression, a constant but not a variable
hope it helps you!
Answer:
Ninety-two is all of the following except a variable
What’s the second step of 2(x+1) =8x-5
Answer:
2(x + 1) = 8x - 5
assuming you already made the first step, the next step is to distribute the 2
2x + 2 = 8x - 5
if you havent made the first step, above is the first step.
the second step would be to combine like terms by subtracting 2x and adding 5 to both sides
7 = 6x
then you would divide both sides by 6
x = 7/6