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
Agata [3.3K]
3 years ago
5

Sarah, amy and liam stand on some weighing scales two at a time.here are the measurements:sarah and amy 70kgsarah and liam 80kgl

iam and amy 80kghow much does liam weigh?
Mathematics
1 answer:
OLga [1]3 years ago
5 0
A+s=70, s+l=80, l+a=80

from the first s=70-a which makes the second:

70-a+l=80

-a+l=10

a=l-10 which makes the third:

l+l-10=80

2l-10=80

2l=90

l=45

So Liam weighs 45 kg.
You might be interested in
What is the expression in radical form?
garri49 [273]

Answer:

\sqrt[5]{25x^{2}y^{4}z^{6} }

Step-by-step explanation:

going to the 2/5 power is the the fifth root of a square. For fraction exponents going into radical form use the denominator as you root of and use the numerator as the exponent of the rest making sure to multiply any other exponents by that number and when there is no exponent treat it as having an exponent of one for the multiplying.  

8 0
4 years ago
True or false. can someone help me w this??
Lubov Fominskaja [6]

Answer:

false

Step-by-step explanation:

it would be in the first quadrant

7 0
3 years ago
Read 2 more answers
The house numbers on the North side of Flynn Street are even. In one block, the house numbers begin 1022, 1032, 1042, 1052. What
Gnom [1K]
The series 1022,1032,1042,1052....

a1=a=1022
d=a2-a1=1032-1022=10
n=5 as 5th term

Sn= a+(n-1)d
= 1022+(5-1)10
= 1022+40
= 1062
Next house will have 1062 as number.
3 0
3 years ago
A restaurant had 85 pies. If the pies were split into 4 different groups how many pies were in each group? Write the answer as a
skelet666 [1.2K]

Answer:

85/4 = 21 ,remainder =1

so

21  1/4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Consider these functions
Evgen [1.6K]
<h3>Answer:  D) 31</h3>

==========================================================

Explanation:

The expression g(f(2)) has f(2) as the inner function.

Let's compute f(2)

This means we plug x = 2 into the f(x) function

f(x) = 4x^3 - 10

f(x) = 4(x)^3 - 10

f(2) = 4(2)^3-10

f(2) = 4*8-10

f(2) = 32-10

f(2) = 22

Now we'll plug this into the g(x) function

This is because g(f(2)) = g(22). I've replaced f(2) with 22

So,

g(x) = (3x-4)/2

g(22) = (3*22-4)/2

g(22) = (66-4)/2

g(22) = 62/2

g(22) = 31

Therefore, g(f(2)) = 31

7 0
3 years ago
Other questions:
  • Vivian bought 6 bottles of cooking oil. She gave the cashier $40 and expected $y change. (a) express the cost of 1 bottle of coo
    10·2 answers
  • 10 5/18-8 5/6 = anyone know
    5·1 answer
  • I need to solve these systems using substitution.
    10·1 answer
  • The null hypothesis in the Durbin-Watson test is always that there is a. negative autocorrelation. b. no autocorrelation. c. eit
    9·1 answer
  • A lightbulb is installed. With probability 1/3 , it burns out immediately when it is first installed. With probability 2/3 , it
    14·1 answer
  • Apply the distributive property to produce an equivalent expression to 10+10g?
    10·1 answer
  • 20 points picture problem​
    6·2 answers
  • I need help quick please
    7·1 answer
  • M+2=M-1
    14·1 answer
  • The sum of the measures of the interior angles of the parallelogram is 360°. Write and solve an equation to find the value of th
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!