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3 years ago

Question 9 of 10

Mathematics

1 answer:

kkurt [141]3 years ago

5 0

Answer:

C 8^1/2

Step-by-step explanation:

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I NEED SOMEONE TO GIVE ME THE CORRECT ANSWERS TO THIS

kipiarov [429]

1. x-5
2. 12x + 5
3. x/5
4. 3x - (x + 5)
hope i helped :)

7 0

3 years ago

Find the price of a $50 item after a 20% discount

il63 [147K]

20% = 0.20
50 * 0.20 = $10 discount
50 - 10 = 40

The price after 20% discount is $40

5 0

3 years ago

Read 2 more answers

The perimeter of the pentagon is 62 units find the length of side BC

kipiarov [429]

recall that the perimeter is simply the sum of all outer sides of a figure.

$\bf 12+3x+10+(x+1)+(2x+3)=62\implies 6x+26=62 \\\\\\ 6x=36\implies x=\cfrac{36}{6}\implies \boxed{x=6} \\\\\\ BC=(6)+1\implies BC=7$

7 0

3 years ago

A rectangular prism has a length of 20 in., a width of 2 in., and a height of 3<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%

vodomira [7]

Calculate the volume of both the prism and the cubes:

Prism:

Volume = 20 x 2 x 3.25 = 130 cubic inches.

Volume of cube:

Volume = S^3 = 1/4^3 = 1/64 ( 0.015625)

Divide the area of the prism by the area of the cube:

130 / 1/64 = 130 * 64 = 8,320

It would take 8,320 cubes to fill the prism.

7 0

3 years ago

In a sequence of ten terms, each term (starting with the third term) is equal to the sum of the two previous terms. The seventh

poizon [28]

Answer:

$\boxed{a_1+a_2+a_3+a_4+a_5+a_6+a_7+a_8+a_9+a_{10}=66}$

Step-by-step explanation:

We know that in a sequence of ten terms, each term (starting with the third term) is equal to the sum of the two previous terms. The seventh term is equal to 6. Therefore, we have

$a_1+a_2=x\\a_3=x\\a_4=2x\\a_5=3x\\a_6=5x\\a_7=8x\\$

We know that:

$a_7=6\\\implies 8x=6\\x=\frac{3}{4}$

We get:

$a_1+a_2=x=\frac{3}{4}\\\\a_3=x=\frac{3}{4}\\\\a_4=2x=\frac{3}{2}\\\\a_5=3x=\frac{9}{4}\\\\a_6=5x=\frac{15}{4}\\\\a_7=8x=6\\\\a_8=13x=\frac{39}{4}\\\\a_9=21x=\frac{63}{4}\\\\a_{10}=34x=\frac{102}{4}\\$

Therefore, we calculate

$\boxed{a_1+a_2+a_3+a_4+a_5+a_6+a_7+a_8+a_9+a_{10}=66}$

4 0

3 years ago