1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bumek [7]
3 years ago
10

In Amy’s backyard, there are also chickens and rabbits. There are 5 more chickens than rabbits. The total number of legs is 130.

How many rabbits and how many chickens?
Mathematics
1 answer:
Butoxors [25]3 years ago
3 0

Answer:

There are 25 chickens and 20 rabbits

Step-by-step explanation:

Let

x-----> the number of chickens

y ----> the number of rabbits

Remember that

1 chicken has two legs

1 rabbit has four legs

so

2x+4y=130 -------> equation A

x=y+5 -----> equation B

Substitute equation B in equation A and solve for y

2(y+5)+4y=130

2y+10+4y=130

6y=120

y=20 rabbits

Find the value of x

x=y+5

x=20+5=25 chickens

You might be interested in
Two chemists working for a chicken fast-food company, have been producing a very popular sauce. Let’s call then Jesse and Mr. Wh
a_sh-v [17]

Answer:

Check the explanation

Step-by-step explanation:

Let \overline{x} and \overline{y} be sample means of white and Jesse denotes are two random variables.

Given that both samples are having normally distributed.

Assume \overline{x} having with mean \mu_{1} and \overline{y} having mean \mu_{2}

Also we have given the variance is constant

A)

We can test hypothesis as

H0: \mu_{1} =  \mu_{2}H1: \mu_{1} > \mu_{2}

For this problem

Test statistic is

T=\frac{\overline {x}-\overline {y}}{s\sqrt{\frac {1}{n1} +\frac{1}{n2}}}

Where

s=\sqrt{\frac{(n1-1)*s1^{2}+(n2-1)*s2^{2}}{n1+n2-2}}

We have given all information for samples

By calculations we get

s=2.41

T=2.52

Here test statistic is having t-distribution with df=(10+7-2)=15

So p-value is P(t15>2.52)=0.012

Here significance level is 0.05

Since p-value is <0.05 we are rejecting null hypothesis at 95% confidence.

We can conclude that White has significant higher mean than Jesse. This claim we can made at 95% confidence.

3 0
3 years ago
What is the General form of this equation?<br> (x- -1)^2 +(y-1)^2 =225.0
KATRIN_1 [288]
General Form is the most basic form of an equation and is used as a template to form equations designed to solve a specific problem.

The equation given is "<span>(x- -1)^2 +(y-1)^2 =225.0".

The general form of this Equation would be presented as 

</span>·X (+/-) Y = Z
·X^2 (+/-) Y^2 = R1
<span>
-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.</span>
4 0
3 years ago
What is an equation of a line that passes through the point (3,-1) and has a slope of 2
kogti [31]

Answer:

y=2x-7

Step-by-step explanation:

y-y1=m(x-x1)

y-(-1)=2(x-3)

y+1=2x-6

y=2x-6-1

y=2x-7

8 0
3 years ago
I have a photo up could someone answer two?
dedylja [7]
The answer to number 2 is g.15
3 0
3 years ago
Read 2 more answers
How do you work out the circumference of a circle using diameter?
azamat
We can get the Circumference of a circle with the diameter by using the formula:

Circumference = Diameter * pie
Where, pie = 22/7 = 3.14

Hope this helps!
5 0
3 years ago
Other questions:
  • PLEASE HELP ASAP <br> f(x)=2x+5<br> g(x)=x³<br> Find f(g(4))
    12·1 answer
  • Use the above figure to answer the question. What's the angle between the tangents at T in the figure? A. 90° B. 75° C. 60° D. 3
    9·1 answer
  • Simplifly the following expressions -¼ + -⅜
    12·1 answer
  • During the school week, joshua spent 3$ each day in lunch.On tuesday,he bought a 5$ ticket to the school and on friday he loaned
    5·1 answer
  • What is the measure of angle x enter your answer is the box
    7·2 answers
  • -x^2 = - 36 (solve using inverse operations)
    7·1 answer
  • Which is grater .856 or .8561
    13·2 answers
  • Which expression is equivalent to 2 to the 2nd power times 2 divided by 2 to the 4th power
    13·1 answer
  • Brian and Andie were calculating their total money saved to see if they could buy a game to share. Andie notices that she has 24
    15·1 answer
  • Please please help *image attached* it’s ap calc ab
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!