A farmhouse shelters 7 animals. Some are horses and some are ducks. Altogether there are 20 legs. How many of each animal are there?
Answers
Answer:
3 horses and 4 ducks
Step-by-step explanation:
let h be the no. of horses and d be the no. of ducks
h+d=7
d=7-h
Since horses have 4 legs and ducks have 2 legs,
4h+2d=20
4h+2(7-h)=20
4h+14-2h=20
2h=6
h=3
d=4
Related Questions
Please help. Im stuck on this question and cant figure this out/
Answers
Answer:
34.1 and 34.3
Step-by-step explanation:
Since it is 2/9 and it's going up by 10's the decimal is .22222222. So it would be between numbers of .1 and .3. Hope this helps!
Show work!and please answer quickly
Answers
Answer:
bruu its c
Step-by-step explanation:
isss easyy
32 - 2
2x
Write the polynomial
in standard form
that represents
the perimeter of
the quadrilateral.
2x + 1
5x - 2
Can someone help me please, it’s almost 11 and I want to go to bed, I have a lot of points
Answers
Answer:
12x-3 if you need a value for x i got nothing
HELLPPPPPPPPPPPPPPPPPPPPPPPPPP
Answers
Answer:
an example could be - 5x - 3
Step-by-step explanation:
Answer:
4x - 2
Step-by-step explanation:
Write an algebraic expression.
An algebraic expression is an equation that consists of one or more variables within.
Variables are letters that have an unknown value and can be substituted :
With this information :
3x - 5
5x - 9
3x + 45
are all examples of alebraic expressions.
Which shape below has both reflection and rotation symmetry
Answers
Answer:
option 4
Step-by-step explanation:
its 4 my dude .......
Plz help!!!!!!!!!!!!!!!!!
Answers
Answer:
I believe it is a maximum. So sorry if im wrong
Step-by-step explanation:
find the slope to the line that contains (-3,-1) (-5,5)
Answers
Answer:
m= -3
Step-by-step explanation:
Answer:
-3 !!
Step-by-step explanation:
m = [tex]\frac{y_{2} - y_{1}}{x_{2} - x{1}}[/tex]
[tex]\frac{5 - -1}{-5 - -3}[/tex]
[tex]\frac{6}{-2}[/tex]
slope = -3
i hope this helps !!
three times Jeffs age is Kelly’s age Kelly is 48 years old what is Jeffs age
Answers
Answer:
48 divided by 3 is 16
Step-by-step explanation:
please give good rating
Becky spent 2/3 of her piano practice time on her recital piece. If she spent 25 minutes on all the other pieces, how many hours did Becky spend on practicing in all?
PLEASE HELP ME
Answers
Answer: 1 1/4 hours
Step-by-step explanation: if 2/3 was her recital piece 25 is equal to 1/3. Multiply it by 3 to get 3/3 or 1. 25*3=75 minutes or 1 hour 15 mins. This can be written as 1 and a quarter hours, 1 hour 15 mins, or 5/4 an hour.
You go to a stylist for a haircut. The cost of the haircut is $12.50. Find the amount of a 15% tip for the stylist?
Answers
The tip should be $1.88, making the total $14.38.
Part A- Determine the solution of the system of linear equations (____. ____)
Part B - What does the x-coordinate of the solution represent in terms of the context of the problem.
Answers
Substitute
5 - y = 32x
Y = 2x
Answers
Answer:
5/34
Step-by-step explanation:
5- (2x) = 32x 5-2x=32x 32x+2x= 34x x= 5/34
!lol help pls im vv bad at math and angles
Answers
Answer:
y=130°
Step-by-step explanation:
180-(90+40)
180-130
50°
y=180°-50°
=130°
what is the value of 7 in the number 8975
Answers
Answer:
70?
Step-by-step explanation:
^ 7 is on tens
Help me! I cannot figure out how to reverse these.
Test each statement below to see if it is reversible. If so, write it as a true biconditional. If not, write not reversible
5: A perpendicular bisector of a segment is a line, segment, or ray that is perpendicular to a segment at its midpoint.
6: Two angles that form a linear pair are adjacent.
Answers
adjacent are two angles that form a linear pair
An item is regularly priced at $45. It is on sale for 55% off the regular price.
Answers
Answer:
the answer would be $20.25
Step-by-step explanation:
55% of 45 is 24.75 and 45 - 24.75 = 20.25
Answer:
20.25
Step-by-step explanation:
55% of 45 is 24.75
45 - 24.75 = 20.25
So the answe is 20.25
what is 1x + 2x = 4x
Answers
Answer:
The answer should be x=0, hope this helps:)
Write the equation for "25 more than a number x is the same as 44"
Answers
Answer:
25 + x = 44
Step-by-step explanation:
Substitute the words with the math symbols.
25 more than a number x is the same as 44
more than means to +
is the same as means =
25 more than a number x is the same as 44
25 + x = 44
25 + x = 44
The new iPhone 12 Pro has a length of 5.2 inches and a width of 2.8 inches.
The iPhone 12 Pro Max is slightly larger and has a length of 6.24 inches.
The length and width of the cell phones are proportional.
What is the width, in inches, of the iPhone 12 Pro Max?
ASAP
Answers
Answer:
all you gotta is multiply length times width times height to find the area my guy. its a good strategy my 6th math teacher taught me.
Step-by-step explanation:
lmk if this helped. make sure to rate.
Answer:
nswer:
all you gotta is multiply length times width times height to find the area my guy. its a good strategy my 6th math teacher taught me.
Step-by-step explanation:
lmk if this helped. make sure to rate.
Step-by-step explanation:
PLEASE I NEED THESE 4 ANSWERED ASAP :))
Answers
Answer:
3. x = 53
4. x = 60
Step-by-step explanation:
Answer:
1. 53
2. 60
Step-by-step explanation:
70+ (4+2x) = 180
74+2x=180
180-74=106/2=53
x=53
2x+x=180
3x=180/3
x=60
there are 48 serving in 8 pizzas. how many servings are in 40 pizzas?
Answers
The answer should be 240
Answer:
There is 240 servings in 40 pizzas.
Step-by-step explanation:
You have to start by finding how many servings are just in 1 pizza and that is 6 and then multiple 40 by 6 and you get 240.
What is the value of log^381?A.2B.3C.4D.5
Answers
Answer:
4
Step-by-step explanation:
Please help, I will give brainlist
Answers
Answer:
Sarah will earn $25.984 in interest in 7 years.
Step-by-step explanation:
1. $64 x 5.8% = $3.712
2. $3.712 x 7 years = $25.984
A small business lost $6200 in its first year, lost $2150 in its second year, and earned $4780 in its third year. Overall, in the 3-year period, how much did the business earn or lose?
Is this the correct expression?
[(6200 - 365) + ( 2150 - 730) + (4780 + 1095)]
Answers
Answer:
-6200-2150+4780
-8350+4780
Overall, they lost $3570
Convert the equation 9x + y = 4 Into slope-intercept form. Make sure to simplify if possible.
Answers
Answer:
x = -1/9y + 4/9
Step-by-step explanation:
9x+y=4
Step 1: Add -y to both sides.
9x+y+−y=4+−y
9x=−y+4
The required equation in slope intercept form is given by y = -9x + 4.
What is the slope of the line?The slope of the line is a tangent angle made by line with horizontal. i.e. m = tanx where x in degrees
What is the intercept in the equation?In the equation intercept is the value of the linear function where either of the variables is zero.
here,
The slope intercept of the line is given as,
y = mx + c,
Where m = slope of the line and c = y-intercept of the line,
Given equation of line 9x + y = 4
Rearrange the equation,
9x + y = 4
y = -9x + 4
Thus, the required equation in slope intercept form is given by y = -9x + 4.
Learn more about slopes here:
https://brainly.com/question/3605446
#SPJ2
6/7 at the power of 2 Value
Answers
Answer:
(6/7)^2 =36/49 or 0.73469387
Step-by-step explanation:
i went on another website that gives free answers
Subject:Mathematics
Answers
PLEASE HELP IM BEGGING YOU ILL GIVE BIRRELENTLIST
Answers
Answer:
7
Step-by-step explanation:
Answer:
Step-by-step explanation:
10^4 x 8 = 80,000. 10^3 = 1000. 80,000 - 1000 = 79000. 87,000-79000= 8000. The answer would be 8000. I think. Don't come at me if I'm wrong, I'm just trying to help.
Alonzo charges $150 for 5 hours of tutoring.
What is his rate per hour.
I’m confused
Answers
Answer:
C: $30/hr
Step-by-step explanation:
In order to find the rate per hour you must divide: 150 ÷ 5
Which will give you 30
Also if you took away the 0 in "150" then it would be like says "15 ÷ 5" which is 3 but then you have to add the zero back making it 30
Therefore your overall answer is going to be C, $30/hr
Jose is planning to drive from New York City to Dallas in his car. Jose was curious and started to complete the table shown to indicate how far in mles he can travel for each gallon of gas he uses
How far did Jose travel with 10 gallons of gas?
Answers
Answer:
200 miles
Step-by-step explanation:
you travel 20 miles for 1 gallon, so 10*20=200miles
Answer:
200
Step-by-step explanation:
if you have to dive its 20 times 10 because 20 miles 10 dollars