2 years ago

Add or Subtract to simplify

Mathematics

1 answer:

exis [7]2 years ago

5 0

Answer:

-5x^5 + 2x^3 - 6x should be your answer

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Anais bought 3½ yards of ribbon. She had 2 feet 10 inches of ribbon left after trimming some curtains. How many inches of ribbon

vredina [299]

Answer:

mathematics questions and then you solve your questions

6 0

3 years ago

4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

3 years ago

Translate the following sentence into an algebraic equation: 3 times "r" less than

victus00 [196]

Answer:

Step-by-step explanation:

5 0

3 years ago

A snack bar sells popcorn in cone-shaped containers. one container has a diameter of 8 inches and a height of 10 inches. how man

uysha [10]

We know that the volume of a cone is given by the following relation:
V = (pi * r^2 * h)/3
where r is radius and h is height of the cone
In our case, radius is diameter divide by 2:
V = (pi * (8/2)^2 * 10) / 3 = 167.55 cubic inches
So the container holds 167.55 cubic inches

7 0

3 years ago

Read 2 more answers

Suppose that you know that angle T and angle S are supplementary, and that m angle T = 8 · (m angle S). Complete the explanation

Ira Lisetskai [31]

Answer:

well, a supplementary angle is two angles that sum up to 180 degrees. If one angle is 8, then the other angle would be found by using 180-8=? Or ?+8=180. Because of this, the other angle would equal 172

Step-by-step explanation:

6 0

2 years ago