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
jek_recluse [69]
3 years ago
8

Help me! Sorry for the other question.... let’s try it again! 1/2 x + 3/5 x = 5/4

Mathematics
2 answers:
Ann [662]3 years ago
8 0

Answer:

x = 1 3/22

Step-by-step explanation:

1/2 x + 3/5 x = 5/4

We need to get rid of the fractions by multiplying by 20 on each side

20 (1/2 x + 3/5 x) = 20 * 5/4

Distribute

10x + 12x = 25

Combine like terms

22x = 25

Divide each side by 22

22x/22 = 25/22

x = 22/22 + 3/22

x = 1 3/22

Volgvan3 years ago
4 0

Answer:

x = 1\frac{3}{22}

Step-by-step explanation:

=> \frac{1}{2} x + \frac{3}{5} x = \frac{5}{4}

LCM = 20

So, Multiplying both sides by 20

=> 20 (\frac{x}{2} + \frac{3x}{5}) = 5 * 5

10 * x + 4*3x = 25\\10x+12x = 25\\22x = 25

Dividing both sides by 22

x = \frac{25}{22}

x = 1\frac{3}{22}

You might be interested in
What is the sum of 347+645=
iren [92.7K]

Answer:

347 + 645 = 992

Step-by-step explanation:

 347

<u>+645</u>

 922

7 0
3 years ago
I need help pls help me
Leni [432]

Answer:

Allison

Step-by-step explanation:

Allison:

2^6 = 64

Chris:

3³ = 27

Hannah:

4² = 16

Steve:

18^1 = 18

5 0
3 years ago
Read 2 more answers
Work out the volume of this cylinder,<br> Give your answer rounded to 1 DP.<br> 5cm<br> 14cm
Ne4ueva [31]

Answer:

Ykjhcgighgy7vgygoohgvg

6 0
3 years ago
Read 2 more answers
Joel Trump is paid one and one-half times the regular hourly rate for all hours worked in excess of 40 hours per week and double
Irina18 [472]

Answer:

C. $516

Step-by-step explanation:

His regular rate is $8 per hour.

Since it's 40 hours a week, it means from Monday to Friday his regular work time is 8 hours per day.

Thus, for the regular week work, he is to be paid;

40 × 8 = $320

Now, we are told he worked 9 hours each day from Monday through Friday.

This means that;

He worked 1 hour each day.

That is 5 hours extra from Monday to Friday.

He is paid one and one-half times the regular hourly rate.

Thus, for this 5 extra hours, he will be paid 1½ × 5 × 8 = $60

He works 6 hours on Saturday, and 4 hours on Sunday.

Thus;

For Saturday, he is also paid one and one-half of regular pay. Thus, he is due for;

1½ × 8 × 6 = $72

He is paid double the regular hourly pay for Sundays.

Thus, for 4 hours on Sunday, he is paid;

2 × 8 × 4 = $64

Total he is due = $320 + $60 + $72 + $64 = $516

7 0
3 years ago
How do you solve 4x 5y = -7 and 3x - 6y = 24 using matrices?
solniwko [45]
Aw yis

take the coefients and put them in rows


\left[\begin{array}{ccc}4&5&|-7\\3&-6&|24\end{array}\right]
divide 2nd row by 3
\left[\begin{array}{ccc}4&5&|-7\\1&-2&|8\end{array}\right]
multiply 2nd row by -4 and add to top one
\left[\begin{array}{ccc}0&13&|-39\\1&-2&|8\end{array}\right]
divide top row by 13
\left[\begin{array}{ccc}0&1&|-3\\1&-2&|8\end{array}\right]
multiply top row by 2 and add to bottom row
\left[\begin{array}{ccc}0&1&|-3\\1&0&|2\end{array}\right]

x=2
y=-3

6 0
3 years ago
Other questions:
  • A jar filled with water weighs 10 pounds. After 1/2 of water is poured out, the jar and the remaining water together weigh 5.5 p
    15·1 answer
  • Sam has a cheese spreader in the shape below.
    8·2 answers
  • What is the LARGEST number of real zeros a polynomial with degree n can have?
    12·1 answer
  • Solve for x.<br> (8x-3)<br> (16x - 33)
    12·1 answer
  • Start time:___<br> Elapsed Time: 2hr 37min<br> End Time: 1:15pm<br> Can someone pls help
    13·2 answers
  • What volume will be occupied by 170 grams of NH3 gas at STP?
    7·1 answer
  • Answer these questions please !
    11·1 answer
  • Richard and Nestor create paintings. Richard creates 40 paintings in 28 days.
    5·1 answer
  • There are 50 roses in a tray. There is at least 1 red rose among any 24 randomly selected roses, and there is 1 white rose among
    7·1 answer
  • Find the volume of a cube with a side that measures 0.01 cm. (Hint: V = s ³).​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!