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
Dima020 [189]
3 years ago
15

Plz plz help me plz plz plzplzplzplz

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer: C

Step-by-step explanation: its C

You might be interested in
What’s 10-8+434+87+64
attashe74 [19]
It is 587
i trust my calculator
5 0
3 years ago
Read 2 more answers
plesee help me do I need it under 25min and don't answer if you don't know or else u will be reported thank you (◔‿◔)​
34kurt

Answer:

l = 2.25 cm

Step-by-step explanation:

given l is inversely proportional to w² then the equation relating them is

l = \frac{k}{w^2} ← k is the constant of proportion

(i)

to find k use the condition w = 1.5 , l = 16 , then

16 = \frac{k}{1.5^2} = \frac{k}{2.25} ( multiply both sides by 2.25 )

36 = k

l = \frac{36}{w^2} ← equation of proportion

(ii)

when w = 4 , then

l = \frac{36}{4^2} = \frac{36}{16} = 2.25 cm

3 0
2 years ago
Please help quick!!
luda_lava [24]
C
6x^2-13X-5=0
(3X+1)(2X-5)
3x-1=0
X=1/3. 2x-5=0. X= 5/2
7 0
3 years ago
Read 2 more answers
Write an expression that is equivalent to -2/5(15 - 20d +50)<br> Explain please!:)
valina [46]

Answer:

-26 + 4/5d

Step-by-step explanation:

-2/5 ( 15 - 2d + 50)

= -2/5 ( 65 - 2d)

= -2/5 * 65 - (-2/5) * 2d

= -26 - (-4/5d)

= -26 + 4/5d

3 0
3 years ago
joe has a piggy bank with $8.90 split upon nickels, dimes, and quarters. The piggy bank contains 76 coins in all. The number of
kozerog [31]

Answer:

There are 38 dimes, 22 nickels and 16 quarters.

Step-by-step explanation:

Let n, d and q represent the # of nickels, dimes and quarters respectively.

Then n + d + q = 76

The value of a nickel is $0.05; that of a dime is $0.10, and that of a quarter is $0.25.

Thus, the value of n nickels is $0.05n (and so on).

The total value of the coins is $0.05n + $0.10d + $0.25q = $8.90.

d = n + q allows us to eliminate d.

First, n + d + q = 76 becomes n + (n + q) + q = 76, and second:

$0.05n + $0.10(n + q) + $0.25q = $8.90.  Here we have succeeded in eliminating d from two different equations, and now we have these two different equations in two unknowns (n and q), which is solvable.

Simplifying both equations, we get:

2n + 2q = 76 and

5n + 10n + 10q + 25q = 890, or 15n + 35q = 890

Let's use the substitution method of solving linear equations:

Rewrite 2n  + 2q = 76 as n + q = 38, or n = 38 - q.  Substituting this result into the second equation, we get:

15(38 - q) + 35 q = 890, or

  570 - 15q + 35q = 890, or

   570 + 20 q = 890.  Then 20q = 890 - 570 = 320, and q = 320/20 = 16.

There are 16 quarters.  Thus, the number of nickels is n = 38 - 16 = 22.

Finally, since n + d + q = 76, 22 + d + 16 = 76, or:

22 + d = 60, or d = 60 - 22 = 38.

There are 38 dimes, 22 nickels and 16 quarters.

4 0
3 years ago
Other questions:
  • 7th grade class enrollment went from 80 students to 60 students. What was the percent decrease?
    12·2 answers
  • An experiment is broken up into two parts. In the first part of the experiment a penny is tossed in the air. If the coin lands o
    11·1 answer
  • Could someone help me with this? Im lost
    5·1 answer
  • Plzzz help will give the brainliest for correct answer
    15·2 answers
  • The total number of adults and students with Library cards in 27814. Of that total 11480 are student
    6·2 answers
  • PLEASE HELP ASAP! URGENT!
    11·2 answers
  • Please answer accurately and show work if you can
    13·1 answer
  • Enter the equation of the line in slope-intercept form.
    6·1 answer
  • What is the value of d+3
    6·1 answer
  • What is the general rule of 3;0;-3​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!