3 years ago

How do you express equivalent equation

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

8 0

Http://www.icoachmath.com/math_dictionary/equivalent_equations.html

Here's a website that might help

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Write one digit on each side of 23 to make a four digit multiple of 72. How many different solutions does this problem have?

user100 [1]

Answer:

This problem has two possible solutions.

2232

7236

Step-by-step explanation:

To be divisible by 72, a number has:

To be divisible by both 8 and 9 at the same time.

It is divisible by 8 if it's last two digits are divisible by 4.

It is divisible by 9 it the sum of it's digits is a number divisible by 9.

a23b

3b must be divisible by 4. In the thirties, the numbers that are divisible by 4 are 32 and 36. So b = 2 or b = 6.

a232

2 + 3 + 2 = 7

The higest possible value of a is 9 and the lowest is 1.

Between 8 and 16, only 9 is divisible by 9. So a = 2.

a = 2, b = 2 is one of the solutions.

a236

2 + 3 + 6 = 11

The higest possible value of a is 9 and the lowest is 1.

Between 12 and 20, only 18 is divisible by 9. So we need a = 7

5 0

3 years ago

Is -10r to the third power plus 3r minus 18 a polynomial?l

Andreyy89

No! it’s a trinomial, a polynomial consists of 4 or more terms :)

4 0

3 years ago

CAN SOMEONE HELP ME PLEASE ASAP? I REALLY NEED HELP

Elan Coil [88]

Answer:

Which one do u want help on because I can do the first 3 but not the rest

Step-by-step explanation:

7 0

2 years ago

A 5-pound bag of apples costs $3.50. Use this rate to complete the table to identify equivalent ratios, then answer the question

dybincka [34]

Apples cost $0.70 per pound.

5 0

3 years ago

A plane travels from Pittsburgh to Cleveland in 2 hours.it maintains an average speed of 100 miles per hour.how far apart are th

wlad13 [49]

The distance between Pittsburgh and Cleveland is 200 miles

Solution:

Given that,

Plane travels from Pittsburgh to Cleveland in 2 hours

Average speed of plane = 100 miles per hour

To find: Distance between these two cities

The relation between speed distance and time is given as:

$Speed = \frac{distance}{time}$

On rearranging the above formula, we get

$distance = speed \times time$

Distance between these two cities = $100 \frac{miles}{hour} \times 2 hour$

$Distance = 200 miles$

Thus both the cities are 200 miles apart

4 0

3 years ago