answer.
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
algol13
2 years ago
12

Bob has some 10 lb weights and some 3 lb weights. Together, all his weights add up to 50 lbs. If x represents the number of 3 lb

weights and y represents the number of 10 lb weights, which equation can be used to find the number of each type of weight Bob has?
Mathematics
1 answer:
Romashka [77]2 years ago
8 0
Total weight = 50 lb
x = number of 3-lb weights
y = number of 10-lb weights

weight of 3-lb weights = 3x
weight of 10-lb weights = 10y
total weight = 3x + 10y

equation
3x + 10y = 50
You might be interested in
Diane has a hospital appointment. When she arrives at the hospital, the car park is nearly full. There are a total of 534 car pa
nevsk [136]
Hiii

all you do is subtract...
534-476=58

58 spots are left.
6 0
2 years ago
Which percentage of weight was lost if a patient weighed 102 kg and is currently 96 kg?
galina1969 [7]

Answer:

Step-by-step explanation:

you have to make a box like this:

║ ---------- ║------------ ║     label one side percent and the other amount

║   x%     ║    96 kg  ║

║ _    _   _║_____ _║   Now if the patient originally weighed 102 kg which

║100%    ║    120 kg ║    is 100% place the numbers in the bottom box.

║ _  _  _  ║ _   _   _ ║     and if the patient currently weighs 96 kg then let

 Percent     Amount       percentage of the weight lost be x. Now cross multiply.  You should get 100*96=120*x. Simplify that to get 9600=120x, now divide by 120 on both sides and you get 80 so x= 80. But the problem isn't done yet. Now you have to subtract 80% from 100% to find the weight lost, because 80% is the percentage of the current weight. after you have subtracted you get 20

20% of the original weight was lost.

4 0
2 years ago
Let XXX and YYY be the following sets: X = \{9, 25\}X={9,25}X, equals, left brace, 9, comma, 25, right brace Y = \{1, 4, 9,16,25
Dmitry_Shevchenko [17]

Answer:

The answer is "\bold{ \{\phi\}}"

Step-by-step explanation:

Given value:

\ Set\ X  = \{9, 25\} \\\\\ Set \ Y = \{ 1,4,9,16,25 \}\\\\Find: \\\\Set (X- Y) \\\\

When we subtract set X - Y it means, that it will give only, that value which is not available on the set Y.

\{X-Y\} = \{\phi\}

5 0
2 years ago
Read 2 more answers
Consider these numbers, ordered from least to greatest. Negative 1.8, negative 1 and one-fourth, negative 0.2, blank, one-half,
netineya [11]

Answer:

All

Step-by-step explanation:

7 1
2 years ago
Read 3 more answers
The table below represents Gerry's trip to school and back home. If the total time is 45 minutes, how far does Gerry live from s
lozanna [386]

Answer: X/8 + X/16 = 3/4

Step-by-step explanation:

you’re just dividing the distance by the rate you are going.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Bruno uses a piece of wrapping paper with dimensions 1 and 1/4 feet by 3 feet to wrap a gift. What is the total area of the pape
    11·2 answers
  • What is the midpoint of a line segment with the endpoints (-6, -3) and (9, -7)?
    6·1 answer
  • rob works part time at the fallbrook riding stable. He makes $5 an hour exercising horses and $10 hour cleaning stalls. Because
    12·2 answers
  • Which represents the solution set of the inequality 5 x minus 9 less-than-or-equal-to 21
    12·2 answers
  • Find the value of g(7) for the function below.<br><br> g(x) = 3x − 3
    6·2 answers
  • Josephina is preparing Indian pudding for a party. She is cooking the pudding in a water-tight container submerged in boiling wa
    6·1 answer
  • Write an expression involving integers for each statement a) moving 4 steps left, then moving 9 steps right b) on 3 separate occ
    10·1 answer
  • Choose the three shapes that have an area of 36 square centimeters.
    12·1 answer
  • What ratio is equivalent to the ratio 18:24
    15·1 answer
  • The number of students attending Martin Middle School decreased by 80 over a 10-year period. What integer represents the average
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!