MATHEMATICS COLLEGE

Suri's age is 4 less than 3 times her cousin's age. Suri is 17 years old. Which method can be used to find c, her cousin's age?

Answers

Answer 1

Answer:

7 years

Step-by-step explanation:

Suri's age=17 years

Her cousin's age =c

Suri's age is 4 less than 3 times her cousin's age

4 less than 3 times her cousin's age means subtract 4 from 3 times her cousin's age

17=3c - 4

Find c which is her cousin's age

Add 4 to both sides

17+4=3c - 4 + 4

17+4=3c

21=3c

Divide both sides by 3

21/3=3c/3

7=c

Therefore,

C= 7

Her cousin's age = 7 years

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-3=?-11 Find the missing value.

Answers

Answer:

?=8

Step-by-step explanation:

I substituted the ? for x

-3=x-11

first we want to isolate the x to do that, you have to find a way to move -11 to the other side. Well, x+0=x right? So all we have to do is find a way to go from -11 to 0! In this case you add 11 to both sides. This is very important so don't forget.

-3=x-11

+11 +11

-3+11=8

x=8

If you check your work, this should also go back in perfectly.

-3=8-11

-3=-11+8

I hope this helps!

Have a good day!

Mayumi plans to buy pencils and a notebook at the school store. A pencil costs $0.15, and a The notebook costs $1.59. Mayumi has $5.00. Which inequality could she use to find the number of pencils she can buy? in equation please

Answers

Answer: 0.15p+1.59n ≤ 5.00

Step-by-step explanation:

Given: A pencil costs $0.15, and a The notebook costs $1.59.

Let p = Number of pencils.

n = Number of notebooks.

Total cost of pencil and notebook = 0.15p+1.59n

Since Mayumi has $5.00.

So, Total cost of pencil and notebook ≤ $5.00

⇒ 0.15p+1.59n ≤ 5.00

Hence, the required inequality: 0.15p+1.59n ≤ 5.00

Round 3.83991676655 to the nearest hundred-thousandth.

Answers

Rounding 3.83991676655 to nearest hundred = 3.83991677

Rounding 3.83991676655 to nearest -thousandth will result to 3.8399168

Given, number to be rounded off 3.83991676655 .

Concept of rounding off:

When the digit after decimal is greater than 5 than it will be rounded up.

When the digit after decimal is less than 5 than it will be rounded down.

Number : 3.83991676655

Rounding number to nearest tenth = 3.8

Rounding number to nearest hundred = 3.83991677

Rounding number to nearest thousandth = 3.8399168

Know more about rounding off,

brainly.com/question/5566370

#SPJ3

Answer:

3.83992

Step-by-step explanation:

3.8399_676655

676655=1000000

3.83991+1000000=3.83992

The principal is Rs.30,000 the interest rate is 12%. Calculate the total value after 2 yearusing compound interest.

Answers

Total value=
112/100 x 112/100 x 30,000
= 37632 Rs

Answer:

37632

Step-by-step explanation:

An=A(1+12%)²

Need help with this don't know how to get the answer.

Answers

Answer:

I saw a lot of birds flying in the sky.Change into negative

You and a friend both leave the same restaurant to drive home. You are heading directly west at 30 miles per hour and he or she is heading directly south at 40 miles per hour. After half an hour, how fast (in mph) is the distance between you changing? Do not include units in your answer.