Answer:
7.89473684211
Step-by-step explanation:
goooooood luuuuucccckkkkkk
Answer:
EhM
Step-by-step explanation:
lucy had 15 bottles of dish soap, she gave 1/9 of 15 bottles of dish soap to her friend. How much in fraction form did she have left?
15/1 x 9/1 = 135/1 = 135
3 cm 2 1/2 cm 2 1/2 cm
Answer: 18.75 cm
Step-by-step explanation:
I multiplyed 3 cm by 2 1/2 and 2 1/1 and got 18.75
Is there a proportional relationship between number of sandwiches and the cost of the order? Explain how you know.
(In the picture are my answers so you guys can see them, but what I need to know is if they are proportional or not, and why.)
(20 points)
Answer:
CMER BOOOOOOOOOOOOOOOOOOOOOO
Step-by-step explanation:
Pls help me :'(
1) Solve the following system of equations by GRAPHING. Remember to check!
y = –x + 1
70 POINTSSSS HELPPPP !
What is the area of the figure?
40 ft2
84 ft2
96 ft2
can't be determined
What number makes the equation true?
Answer:
32
Step-by-step explanation:
the denominators are the same, so just add the two fractions on the right and subtract it from the answer on the left.
3500/7+210/7=3710/7
subtract 3710 from 3742
= 32
A speed skater covered 1,484 meters in 106 seconds. Find the unit rate of speed in meters per second. guys...please help me...I am confuzzled!!
ANSWER FREE BRINLIEST!! ANSWER THE TWOO CIRCLED ONES!!
Answer:
alright for the first one you set them equal o each other while for the second you do the same thing
first one:8
second one:5
Step-by-step explanation:
24/3 is x and x=8
for the second one
18+12 is 30 and 30/6 is 5so the second one is 5'
if you want me to clarify more please comment
Answer:
this was a while ago so i am just putting this answer so u can give the other dude brinliest
Step-by-step explanation:
I will give brainiest to whoever answers correctly !!
Need help with all of these! (55 points!)
Answer:
Step-by-step explani belive you add it if it is improper then simplify hope it helps
PLEASE HELP .?.!.??.!
Answer:
I would say Mai
Step-by-step explanation:
So if you do the math like i did you would get 2 answers 10 and 0 so all you would have to do then for your question is figure out the math and you should be good to go. Also to me Mai wrote it in the way i would write it out.
To ensure that the mass of an average grain of rock salt stays the same, what should you multiply the first factor 1.2 by so that 10 negative 2 becomes 10 negative 4
Answer:
Step-by-step explanation:
[tex]1.2 X 100=120.\\[/tex]
Answer:
The mass of an average grain of rock salt is 1.2 x 10^-2. In part A, you multiplied 10^-2 by 10^-2 to get 10^-4. So, multiply the first factor, 1.2 , by 10^2, or 100.
The first factor will then be 1.2 x 100 = 120.
Step-by-step explanation:
Edmentum answer
if the orginal quantity is 12 and the new qyantity is 15 what is the percent increase
Answer:
25% increase
Step-by-step explanation:
So I would set this up as a proportion
15 x
12 100
So begin by cross multiplying-
15 x 100 = 1500
And then divide
1500/12 = 125
Because 100% is the original, subtract that
Most people celebrating the new year will spend no more than $200. Write the amount that the average person will spend as an inequality, where X is the amount of personal spend.
Answer:
10
Step-by-step explanation:
Please answer it this question
Answer:
Step-by-step explanation:
A) 5/7
B) 12/8
c) 6/6
f(x) = 3r2 + 12x + 5
What is the value of the discriminant of f?
D
How many distinct real number zeros does
f(x) have?
Answer:
The value of the discriminant is 84.
i.e. b²- 4ac = 84
As
b²- 4ac > 0
Therefore, there are two distinct real number zeros.
Step-by-step explanation:
We know that the discriminant of the quadratic equation ax²+bx+c=0 is equal to b²- 4ac.
We also know that:
When b²- 4ac = 0 there is one real root.When b²- 4ac > 0 there are two real roots.When b²- 4ac < 0 there are two complex roots.We are given
f(x) = 3x² + 12x + 5
comparing with the quadratic function ax²+bx+c=0
a = 3, b = 12, c = 5
Discriminant = b²- 4ac
= (12)²-4(3)(5) ∵ a = 3, b = 12, c = 5
= 144 - 60
= 84
Thus, the value of the discriminant is: 84
As
b²- 4ac > 0
Therefore, there are two distinct real number zeros.
If 3x + 7y = 12 and x-y= 1, then what is the value of 5x + 5y?
Answer:
14.
Step-by-step explanation:
3x + 7y = 12
x - y = 1 Multiply this by -3:
-3x + 3y = -3 Add this to equation 1:
0 + 10y = 9
so y = 9/10 = 0.9.
x - 0.9 = 1
x = 1.9.
So 5x + 5y = 5*1.9 + 5*0.9
= 14.
About 245 out of 500 students prefer walking instead of riding the bus to school. About what percent of the students prefer walking?
Answer:
49 percent
Step-by-step explanation:
So convert the fraction into a percentage
245/500= 49%
A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 160 lbs and each box of books weighs 50 lbs. The maximum capacity of the elevator is 1000 lbs. How many boxes of books can the delivery person bring up at one time? Note: The delivery person cannot bring up a partial/fraction of a box.
Answer:
16 boxes
Step-by-step explanation:
160+50x=1000
Solve for the x and you'll get 16.8. Now, because you can't have a fraction of a box, and you can't go over the limit, the answer is 16 boxes.
(How to solve for x:
Get x by itself by subtracting 160 to both sides.
50x=1000-160
50x=840
Divide both sides by 50.
x=16.8)
manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 433.0 gram setting. It is believed that the machine is underfilling the bags. A 40 bag sample had a mean of 431.0 grams. A level of significance of 0.1 will be used. Is there sufficient evidence to support the claim that the bags are underfilled
Answer:
Since the calculated value of Z= -0.01871 does not lie in the critical region
Z ≥ Z∝ =± 1.28 we conclude that the null hypothesis is true and there is not sufficient evidence to support the claim that the bags are under filled.
Step-by-step explanation:
We formulate hypotheses as
H0: u < 433.0 against the claim Ha: u ≥ 433.0 ( one sided)
The significance level ∝= 0.1
Since the sample size n= 40 is greater then 30 z test is used.
Z = X`- u/ S/ √n
Z= 431.0- 433/ 676/√40
z= -2/106.8859
Z= -0.01871
The critical region is Z ≥ Z∝ =± 1.28 for one tailed test at alpha= 0.1
Since the calculated value of Z does not lie in the critical region we conclude that the null hypothesis is true and there is not sufficient evidence to support that the bags are under filled.
In the class of 35 students, there are 5 more boys than the girls. How many boys are in the class
Answer:
20 boys
Step-by-step explanation:
by subtracting 5, the boys would be equal to the girls, so there are 15 girls. 15+5=20
perimeter of the rectangle
Here is a rectangle:
7 cm
4 cm
1. What is the area of the rectangle?
2. What is the perimeter of the rectangle?
Answer:
The area is 28 cm squared.
The perimeter is 22 cm.
Step-by-step explanation:
To find the area, multiply one side length by the other.
7x4 = 28 cm^2
To find perimeter add the four sides of the rectangle.
7 + 7 + 4 + 4 = 22 cm
50.) Find the value of b so that 330_b= 226_b+5
Q5. Asif is 5 years younger than Qasim. Four years later, Qasim will be twice as old as
Asif. Find their present ages.
Answer:
Age of Qasim = 6 year
Age of Asif = 1 year
Step-by-step explanation:
Let :
Age of Qasim = x
Age of Asif = x -5
After 4 years there age will be:
Age of Qasim = x+4
Age of Asif = x-5+4 = x-1
We are given: Four years later, Qasim will be twice as old as Asif.
Age of Qasim = 2 (Age of Asif)
x+4=2(x-1)
x+4=2x-2
2x-x=4+2
x=6
So, We get x = 6
The present ages will be:
Age of Qasim = x = 6 year
Age of Asif = x -5 = 6-5 = 1 year
8. There are 7 cars for every 5 trucks. If there are 21 cars, how
many trucks are there?
O a) 10
O b) 7
O c)15
O d) 62
Answer:
c)15
Step-by-step explanation:
21 divided by 7 is 3
5 times 3 is 15
Answer:
The answer is 15.
Step-by-step explanation:
that's the answer to me
Which is true about the triangles’ perimeters?
2 triangles labeled Triangle A and Triangle B.
Triangle A has 3 sides, each labeled 9 kilometers.
Triangle B's base is labeled 15 kilometers. Its other 2 sides are each labeled 8 kilometers.
The perimeter of Triangle A is equal to the perimeter of Triangle B. The perimeter of Triangle A is 3 kilometers less than the perimeter of Triangle B. The perimeter of Triangle A is 4 kilometers less than the perimeter of Triangle B. The perimeter of Triangle A is 9 kilometers less than the perimeter of Triangle B.
Answer:
Step-by-step explanation:
let x be the common ratio / or scale factor
the sides of the triangle are
5x, 12x and 13x
sum of the sides defines perimeter
that is
5x + 12x + 13x = 15
30x = 15
x = 15/30
x = 0.5
The sides of the triangle are 0.5(5) = 2.5
0.5(12)=6
0.5(13) = 6.5
2.5, 6, 6.5 all in inches
A train travels 120 miles in 3 hours. At this same rate, how many miles will it travel in 8 hours?
320 miles
500 miles
450 miles
400 miles
PLEASE HELP
Solution of -9=6m+15
Answer:
[tex]m = - 4[/tex]
Step-by-step explanation:
1. subtract 15 from both sides.
[tex] - 9 - 15 = 6m[/tex]
2. Simplify -9-15 to -24.
[tex] - 24 = 6m[/tex]
3. Divide both sides by 6.
[tex] - \frac{24}{6} = m[/tex]
4. Simplify 24/6 to 4.
[tex] - 4 = m[/tex]
5. Switch sides.
[tex]m = - 4[/tex]
Therefor, the answer is , m = -4
Enter the decimal as a percent.
0.811
Answer:
0.00811%
Step-by-step explanation:
.811/100 = 0.00811%
what do you call cheese that isn't yours?
q > d, if d = 3 is it true or false
