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3 years ago

Place the four steps of the elimination method in the proper order

Mathematics

1 answer:

Reptile [31]3 years ago

8 0

Find a variable with equal or opposite coefficients, if equal then subtract the equations but if opposite then add, solve one variable equation left, and then substitute known variable into other equation and solve

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A. Complete the table to chart his calorie expenditure for different amounts of time.

Thepotemich [5.8K]

Answer:

Hi there i dont like math

5 0

2 years ago

Drake wants to save $750 so that he can take a class on computer analysis for cars. The class is being held on various dates ove

Natali5045456 [20]

C. Both options A and B will allow him to meet his goal.

_____
On his original plan, he is $30 short. (A) By delaying his class 1 week, he can add one more payment, so will have $95 more than he needs. (B) By increasing his payment $15 each week for the remaining 2 weeks, he will have exactly the amount he needs to take the class at the time he originally wanted.

8 0

3 years ago

A growth medium is inoculated with 1,000 bacteria, which grow at a rate of 15% each day. What is the population of the culture 6

ddd [48]

Answer:

The population of bacteria after 6 days is 2,313.06

Step-by-step explanation:

Given as :

The initial population of bacteria = i = 1,000 bacteria

The growth rate of bacteria per day = 15%

Let The population of bacteria after 6 days = f

The time period of growth = 6 days

<u>Now, According to question</u>

The population of bacteria after 6 days = initial population × $(1+\dfrac{\textrm rate}{100})^{\textrm time}$

Or, f = i × $(1+\dfrac{\textrm r}{100})^{\textrm t}$

Or, f = 1000 × $(1+\dfrac{\textrm 15}{100})^{\textrm 6}$

Or, f = 1000 × $(1.15)^{6}$

Or, f = 1000 × 2.31306

∴ f = 2,313.06

So,The population of bacteria after 6 days = f = 2,313.06

Hence,The population of bacteria after 6 days is 2,313.06 Answer

3 0

3 years ago

A cheetah can run 70 miles per hour. what is this speed in feet per hour? explain work,

MArishka [77]

So 70 miles per hour is 70 mile/1hour
1 mile=5280 feet
70 tmes 5280=feet=36,960

so 36,960 feet per hour

8 0

3 years ago

Word problem: $32.95 for an adult ticket and $22.95 for a junior ticket. one day, the park collected $10,612 from a total of 360

seropon [69]

$x + y = 360 \\ 32.95x + 22.95y = 10612$
First, solve
$x = 360 - y$

Substitute that into equation
$32.95(360 - y) + 22.95y = 10612 \\ 11862 - 32.95y + 22.95y = 10612 \\ 11862 - 10y = 10612 \\ 10y = 1250 \\ y = 125$

Substitute y = 125 into
$x = 360 - 125 \\ x = 235$

There were 235 adult tickets and 125 junior tickets.

Hope this helps. - M

6 0

3 years ago