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
VikaD [51]
2 years ago
8

Rearranging formula

Mathematics
1 answer:
allochka39001 [22]2 years ago
8 0

Answer:

Arlo's weight = 52.3 kg

Explanation:

Let Arlo be "x"

Then,

Arlo = x

Bert = x+20 (Because Bert is 20 heavier than Arlo)

Cassie = x+20-5 (Because Cassie is 5 lighter than Bert)

Donnie = \frac{x+20}{2} (Because Donnie is half of Bert's weight)

Average = 57

Step by step Calculations:

57 = \frac{(x) + (x+20) + (x+20-5) + (\frac{x+20}{2} )}{4}  (The whole divided by 4 because the total people is 4)

57*4   =  x + x + 20 + x + 20 - 5 + \frac{x+20}{2}

228 = 3x + 35 + \frac{x+20}{2}

228 - 3x - 35 = \frac{x+20}{2}

193 -3x = \frac{x+20}{2}

2(193 - 3x) = x + 20

386 - 6x = x + 20

386 - 20 = x + 6x

366 = 7x

x = \frac{366}{7}

x = 52.3 kg (corrected to 3 significant figures)

Therefore Arlo's weight is 52.3 kg

You might be interested in
Graph: - 4x + 4y &gt; 20 &amp; 4x + 4y &lt; -12<br>please help !!!!!<br>​
VARVARA [1.3K]
I’m not totally sure about the less and greater signs because I’m not sure you can graph using those signs but either way their are your line equations

8 0
3 years ago
Describe how to find all the points on a baseball field that are equidistant from second base and third base
BlackZzzverrR [31]
This might help explain how to do a very similar problem.... http://www.mathopenref.com/constbisectline.html
8 0
3 years ago
Please help me asap!
Mazyrski [523]

Answer:

x value is 10 as per as the question its value is 10

3 0
3 years ago
Consider kite WXYZ. What are the values of a and b? a = 4; b = 10. a = 4; b = 40, a = 8; b = 10, a = 8; b = 40
Brut [27]

Check the picture below.

let's recall that a kite is a quadrilateral, and thus is a polygon with 4 sides

sum of all interior angles in a polygon

180(n - 2)      n = number of sides

so for a quadrilateral that'd be 180( 4 - 2 ) = 360, thus

\bf 3b+70+50+3b=360\implies 6b+120=360\implies 6b=240 \\\\\\ b=\cfrac{240}{6}\implies b=40 \\\\[-0.35em] ~\dotfill\\\\ \overline{XY}=\overline{YZ}\implies 3a-5=a+11\implies 2a-5=11 \\\\\\ 2a=16\implies a=\cfrac{16}{2}\implies a=8

3 0
3 years ago
Read 2 more answers
URGENT
Alexeev081 [22]
Ts temperature as a function of time is given by T(t)=a(1-e^kt)+b
the values of a and b area = 50 Fb = 350 F
this is very evident to equation the b is the initial temperatre of the oven which is 350 F
and also a is the initial temperature of the potato because it is the term multiplied by the exponent term which will indicate the temperature increasse of the potato
7 0
3 years ago
Other questions:
  • Suppose two dice (one red, one green) are rolled. Consider the following events. A: the red die shows 2; B: the numbers add to 5
    6·1 answer
  • ‍♀️ Another struggle
    12·1 answer
  • How many times is six going to 102
    5·1 answer
  • What is the area of this figure?<br><br> Enter your answer in the box.<br><br> in²,
    15·1 answer
  • Help me show work please
    11·1 answer
  • What is 4s In 440 in value of given digits
    8·1 answer
  • (43x - 10y) + (40x + 42y)
    12·1 answer
  • PLEASE HELP! WILL MARK BRAINLIEST!
    12·1 answer
  • Using the information below, write a variable expression for the following:
    11·1 answer
  • Please answer with clear instructions so that i can apply this to other questions.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!