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
KATRIN_1 [288]
3 years ago
8

A large concrete mixing machine can mix a certain amount of concede in 12 hours, while a smallet one can mix

Mathematics
1 answer:
Andrews [41]3 years ago
5 0

Answer:

[(1/12)(5/5) + (1/20)(3/3)](x hours) = 1

(5/60 + 3/60)x = 1

(8/60)x = 1 we can reduce 8/60 by dividing out a 4

(2/15)x = 1 x both sides by 15/2

x = 15/2

x = 7 1/2 or 7.5 hours

You might be interested in
Y=-x2<br> What is the graph
Mama L [17]

Answer:

photo math

Step-by-step explanation:

pohto math is very helpfull and it shows the graphs

3 0
3 years ago
Write this statement as a conditional statement in the form “if p, then q.”
ss7ja [257]

Answer:

if the measure of an angle is 90°, then the angle is a right angle.

Step-by-step explanation:

p=the measure of an angle is 90°

q=the angle is a right angle

p is the hypothesis of the conditional statement

q is the conclusion of the conditional statement

5 0
2 years ago
Hadley’s softball team has a phone tree in case a game is canceled. The coach calls 3 players. Then each of those players calls
Setler [38]
           1                                2                            3
   1      2        3           1        2       3            1       2      3
123   123   123       123   123   123       123  123  123
3          3        3            3      3           3          3       3        3
3(9)
27
5 0
3 years ago
HELP ASAP
tia_tia [17]
2,700 / 12 = 225
225 / 5 = 45
They can make 45 necklaces.








3 0
3 years ago
I need to know how to do Solving Systems of Equations by Elimination
vredina [299]
The point of elimination is to have one variable so example

3x + 2y = 4

7X + 3y = 5


1) Try to find a way to have one variable

7(3x + 2y = 4) ----> 21x + 14y = 28

-3(7x+ 3y = 5) -----> -21x -9y = -15


2) add

0 + 5y = 13

3) solve for the last variable

5y = 13
y = 13/5 = 2 3/5 = 2.8

4) Subsitute the variable to get the other one

3x + 2(2.8) = 4

3x + 5.6 = 4

3x = -1.6

x = 0.533333333 (continue)

The intersection would be 0.53 with a line above the 3 and 2.8. (0.5333 , 2.8)

Hope you understand!!
6 0
3 years ago
Other questions:
  • A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 98m long and 76m wide.
    6·1 answer
  • Which expression is equivalent to x4 • x−2?
    7·1 answer
  • (5^3)^2 . (4^2)^2 . (6^2)^3
    8·1 answer
  • Between a mixture and substance which can be separated into components &amp; what are the two ways?
    6·2 answers
  • The point that the two rays intersect is called the
    9·1 answer
  • These are 256 in a box.these are composed of apples,oranges,and ponkans. If their ratio is 3:5:6 respectively.how many apples ar
    5·1 answer
  • FINDING PERIMETER need help right now<br>​
    9·1 answer
  • Which set includes rational numbers but not natural numbers
    15·1 answer
  • determine if the following triangles are similar, and if so which postulates or theorem proves they are similar​
    9·1 answer
  • Three friends decide to share the cost to rent an apartment equally. The apartments that they are considering cost at least 1 20
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!