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
Please help me ill give brainliest​
Oksana_A [137]

Answer:

I think the answer is D!

Step-by-step explanation:

3 0
3 years ago
What are the the symbolsfor:<br> y-hat, p-hat, y-bar
Vitek1552 [10]
Ŷ<span> “y-hat” = predicted average y value for a given x, found by using the regression equation.
</span>p̂ “p-hat”  -----> <span>proportion
</span>I can't type y-bar but its a straight line on the top of letter y.
6 0
3 years ago
Is 1/3 closest to -1 or 0?
Nata [24]

Answer:

1/3 is closer to 0 than it is closer to -1

Step-by-step explanation:

<------------------(-1)--0---(1/3)----------------->

As you can see here, 1/3 is closer to 0 than -1

7 0
3 years ago
Read 2 more answers
A triangle has an area of 35 square inches. the length of one of the sides it 10 inches. what is the length of the perimeter? in
Serggg [28]
The perimeter would be about 34.4 because if you choose the bottom side to be ten, by multiplying 35 by 2 to get 70 you can divide by 10 to get 7. Since you know the height and width, you can use pythagorean theorem, a^2 + b^2 = c^2. Plug in the numbers you have 10^2+7^2=c^2. c^2=149, so if you square root 149 you will get a irrational number but when rounded you get 12.2- so that is one side multiply by 2 and get 24.4- and add 10 to get 34.4
7 0
3 years ago
In the diagram below, m = 60 and<br> m = 74. What is the measure of PTS?
PIT_PIT [208]

Answer: 67 on apex

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write a quadratic function f whose zeros are - 5 and 7.
    7·1 answer
  • James works in a flower shop. he will put 36 flowers in vases for a wedding. he must put the same amount of tulips in each vase.
    5·1 answer
  • How to find the values of x and y.
    6·1 answer
  • What is 1/4 + 1/2 plzzz help ​
    9·2 answers
  • Eight days ago, Mrs. Salazar put 50 sheets
    14·1 answer
  • How to subtract partial products to divide 260 by 4
    8·2 answers
  • In the diagram, the measure of 1 is 55°. If line y is rotated 5° clockwise about the point of
    9·1 answer
  • Nvm i alr know the answer lol
    9·1 answer
  • Farmer rusty nales has a total of 25 chickens and cows on his farm. How many of the aches animals does he have if all together t
    11·1 answer
  • Write the equation of the line through the points (-6, -19) and (2, 5).
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!