3 years ago

Help please!! | no links

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

,,,,,,,,,,,,,,,,,,,,,

You might be interested in

A 9-yard roll of string costs $3.42. What is the unit price?

Karolina [17]

Answer:

$0.38 per yard

Step-by-step explanation:

Step 1:

Given; A 9-yard roll of string that costs $3.42.

Required; To find the unit price

Step 2:

Convert $3.42 to cents

$1 ~dollar=100~cents ~\\therefore,\\$3.42=3.42~x~100=342~cents~$

Step 3:

Find the unit price

$\frac{9 yard}{1 yard} =\frac{342 ~cents}{x~cents}$

$9x=342$

$\frac{9x}{9} =\frac{342}{9}$

$x=38~cents$

Convert to dollars

$x=\frac{38}{100}$

$x=0.38~per~yard$

Hence the unit price is $0.38 per yard.

5 0

2 years ago

Which of the following is a perfect square trinomial?

marissa [1.9K]

Answer:

a. x² + 10x + 25

Step-by-step explanation:

because

(x + 5)² = (x + 5)(x + 5) = x² + 5x + 5x + 25 = x² + 10x + 25

so, it is a perfect square of (x + 5).

4 0

1 year ago

Express this number in scientific notation. 0.00061

shutvik [7]

Answer:

6.1×10^-4

___________________

7 0

3 years ago

Write a verbal description for each algebraic expression 100-5n

Reika [66]

Step-by-step explanation:

One hundred minus five n

6 0

3 years ago

A pool has a depth of 12 feet and a width of 14 feet.If it holds 1680 cubic feet of water, what is the length of the pool?

Novay_Z [31]

12 x 14 x L = 1680

168 x L = 1680

L = 1680 / 168

L = 10 feet

3 0

3 years ago