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3 years ago

One-fifth of the 45 nails in the toolbox are bent. How many bent nails are in the toolbox?

Mathematics

2 answers:

earnstyle [38]3 years ago

7 0

Hi, I'm pretty sure the answer is 225 nails. Here is my work:
We know that 1/5 = 20/100, so 45 times 5 equals 225.

worty [1.4K]3 years ago

4 0

There will be 9. Hope this helped! :)

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Help please!! I’m stuck with these questions. :)

ladessa [460]

Answer:

20 elements.

Step-by-step explanation:

Lets say

n(U) = 114

n(A) = 57

n(B) = 79

n(A n B)= 42

Now,

n(A U B) = n(A) + n(B) - n(A n B)

= 57 + 79 - 42

= 94

Now,

n(A U B) compliment = n(U) - n(A U B)

= 114 - 94

= 20

8 0

2 years ago

Place the following expressions in order from least to greatest based on the differences. = -6 = (-8) -1.9 = 4.3 2.5. - 8

aksik [14]

Answer:

yes

Step-by-step explanation:

reddit karma

7 0

3 years ago

2x - 4(x + 2) = -2X-8

devlian [24]

Answer:

x= 0

Step-by-step explanation:

in order to find the value of x in the 2x - 4(x + 2) = -2X-8

we are going to apply bodmas rule by first opening the bracket

we have,

2x-4x-8 = 2x -8

we proceed to collect the like terms

2x -4x-2x = -8 +8

-4x = 0

divide both sides by -4

-4x/-4 = 0/-4

x= 0

6 0

4 years ago

Find the sum of 14 + 8 + 2+ ... + ( 274) + (-280).

Musya8 [376]

The sum of the given sequence is -6384.

Step-by-step explanation:

The given Arithmetic sequence is 14 + 8 + 2+ ... + ( 274) + (-280).

The first term of the sequence = 14
The last term of the sequence = -280
The common difference ⇒ 14 - 8 = 6

To find the number of terms in the sequence :

The formula used is $n = (\frac{a_{n}-a_{1}} {d})+1$

where,

n is the number of terms.
$a_{n}$ is the late term which is -280.
$a_{1}$ is the first term which is 14.
d is the common difference which is 6.

Therefore, $n =(\frac{-280-14}{6}) +1$

⇒ $n =( \frac{-294}{6}) + 1$

⇒ $n = -49 + 1$

⇒ $n = -48$

⇒ n = 48, since n cannot be negative.

∴ The number of terms, n = 48.

To find the sum of the arithmetic progression :

The formula used is $S = \frac{n}{2}(a_{1} + a_{n} )$

where,

S is the sum of the sequence.
$a_{1}$ is the first term which is 14.
$a_{n}$ is the late term which is -280.

Therefore, $S = \frac{48}{2}(14+ (-280))$

⇒ $S = \frac{48}{2}(-266)$

⇒ $S = 48 \times -133$

⇒ $S = -6384$

∴ The sum of the given sequence is -6384.

3 0

3 years ago

The area of a rectangle is 35 ft squared , and the length of the rectangle is 3 ft more than twice the width. find the dimension

andrey2020 [161]

Are there any answer choices

7 0

3 years ago