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hammer [34]
3 years ago
9

Can anyone help me with my math homework plz

Mathematics
1 answer:
Svetach [21]3 years ago
8 0

Answer:

1. 136

2. 55

3. 53

4. 110

5. 61

6. 88

7. 62

8. 140



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I NEED HELP!!! ASAP!
iren2701 [21]
I think the correct answer is B.
7 0
3 years ago
Please help me with another problem
lorasvet [3.4K]
"one" will fill both blanks.
8 0
3 years ago
If f(x)=4-11 what is the value of f(5)
Sveta_85 [38]

f(5) = 9

Do this by substitution:

f(x) = 4x - 11

f(5) = 4(5) - 11

f(5) = 20 - 11

f(5) = 9

3 0
2 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
2 years ago
1. A bag of marbles has 15 marbles in it. there are 7 Red marbles and 8 Green marbles. What is the ratio probability of pulling
elixir [45]

Answer:

pulling red 7:15

green 8:15

54% chance of pulling green because 8 is 54% of 15

3 0
3 years ago
Read 2 more answers
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