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Delicious77 [7]

3 years ago

13

During a family vacation, Lucas collected 36 shells. The ratio of the number of shells that Lucas collected to the number of she

lls his sister collected is 3 to 4. How many shells did his sister collect?

1 answer:

Vanyuwa [196]3 years ago

6 0

The answer is 48

Explanation attached below!

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Find the area of the figure.

mel-nik [20]

Answer:

192+128+112+36=468 not really sure if this is the answer

4 0

3 years ago

Read 2 more answers

The length of a board is 2 5/8 feet long. If 5/6 of a foot is trimmed off, find the new length

nalin [4]

Answer:

New length is 3 3/20 ft.

Step-by-step explanation:

The total board is 2 5/8 feet long. And since 5/6 of a foot is trimmed off, that means each piece of wood is 5/6 feet.

We can now set up an equation like this ---> 5/6 ⋅ x = 2 5/8

Now we're going to simplify ---> 5/6 ⋅ x = 2 5/8

5/6 ⋅ x = 21/8

(multiply both sides by 6)

5x = 63/4

(divide both sides by 5)

x = 63/20

x= 3.15

So, the new length is 3.15 feet long, or 3 3/20 in mixed fraction.

6 0

2 years ago

Rewrite the decimal in the sentence below as a percentage.

serious [3.7K]

Answer:

0.0066%

Step-by-step explanation:

6 0

2 years ago

2 1/2 ÷ 1/2= what is this answer

Anna11 [10]

Answer: 5

Step-by-step explanation:

5 0

2 years ago

Which of the following are solutions to the equation below?

scoundrel [369]

Answer:

The correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Step-by-step explanation:

Given the expression

$x^2+10x+25=8$

Subtract 25 from both sides

$x^2+10x+25-25=8-25$

Simplify

$x^2+10x=-17$

Add 25 or 5² to both sides

$x^2+10x+5^2=8$

as

$x^2+10x+5^2=\left(x+5\right)^2$

so the expression becomes

$\left(x+5\right)^2=8$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x+5=\sqrt{8}$

Subtract 5 from both sides

$x+5-5=2\sqrt{2}-5$

$x=2\sqrt{2}-5$

solve

$x+5=-\sqrt{8}$

Subtract 5 from both sides

$x+5-5=-2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Therefore, the solution to the equation

$x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5$

Hence, the correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

6 0

3 years ago