All categories

3 years ago

1. 3(2x - 5) = 55 - 4x

Mathematics

2 answers:

attashe74 [19]3 years ago

4 0

Answer:

Step-by-step explanation:

6x-15=55-4x

combining similar terms

6x+4x=55+15

10x=70

dividing both sides by 10

x=7

marshall27 [118]3 years ago

4 0

Answer: X = 7

Step-by-step explanation:

3(2x - 5) = 55 - 4x

Open bracket

6x - 15 = 55 - 4x

Collect like terms

6x + 4x = 55 + 15

10x = 70

x = 70/10

x = 7

You might be interested in

Determine the stopping distance of a car with an initial speed of 29.97 m/s, a human reaction time of 1s, and an acceleration of

Rudik [331]

Answer:

5/18 m/s?

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Eleman sayısı 2 arttırıldığında alt küme sayısı 24 artan bir kümenin eleman sayısı kaçtır

Lera25 [3.4K]

Answer:

What?

Step-by-step explanation:

3 0

3 years ago

6. Charlie can spend up to $8 on lunch. He wants to buy a tuna sandwich, a bottle of

PilotLPTM [1.2K]

Answer:

The maximum number of pounds of potato salad that Charlie can buy is 0.375

Step-by-step explanation:

see the attached figure to better understand the problem

Let

a ----> the cost of one tuna sandwich

b ----> the cost of a bottle of apple juice

c ----> the cost per pound of potato salad

x ----> pounds of potato salad

we have

$a=\$4.25$

$b=\$2.25$

$c=\$4.00/lb$

we know that

He wants to buy a tuna sandwich, a bottle of apple juice, and x pounds of potato salad and can spend up to $8

The inequality that represent this situation is

$a+b+cx \leq 8$

substitute the given values

$4.25+2.25+4.00x \leq 8$

Solve for x

Combine like terms

$6.50+4.00x \leq 8$

Subtract 6.50 both sides

$4.00x \leq 8-6.50$

$4.00x \leq 1.50$

Divide by 4 both sides

$x \leq 1.50/4.00$

$x \leq 0.375\ lbs$

therefore

The maximum number of pounds of potato salad that Charlie can buy is 0.375

3 0

3 years ago

What is the volume of a cone with a height of 10.5 inches and a radius of 8 inches? cone v = 1 3 bh 1. rewrite the formula for t

bonufazy [111]

The volume of the cone that has a radius of 8 in. and a height of 10.5 in. is: 703.7 in.³

<h3>What is the Volume of a Cone?</h3>

Volume = 1/3πr²h

Given the parameters:

Height (h) = 10.5 in.
Radius (r) = 8 in.

Volume of the cone = 1/3πr²h = 1/3π(8²)(10.5)

Volume of the cone = 1/3π(64)(10.5)

Volume of the cone = 703.7 in.³

Learn more about volume of a cone on:

brainly.com/question/13677400

#SPJ1

3 0

2 years ago

Read 2 more answers

The sum of the three angles in a triangle is 180 degrees. One of the angle measures 30 degrees, and the second angle measures 75

Molodets [167]

Answer:

75 degrees

Step-by-step explanation:

30 + 75 = 105

180 - 105 = 75

4 0

3 years ago

Read 2 more answers