MATHEMATICS MIDDLE SCHOOL

If log10 y = 2. what does y equal?

Answers

Answer 1

Answer:

Answer:

$log_(10) (100) = 2$

Step-by-step explanation:

Here, the given expression is:

$log_(10) (y) = 2$

Now, by logarithm rules, we know

if $log_(b)(x) = z$

, then x = $b^(z)$

Comparing here, b = 10 and z = 2

⇒ y = $10^(2) = 100$

or, $log_(10) (100) = 2$

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The temperature on Mars is -85°F and the temperature in the clouds of Jupiter is-234°F. Which planet is colder?

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A recipe calls for 30 grams of sugar. Ramesh decides to decrease the sugar by 20%. How much sugar will Ramesh use?

Answers

Answer:

24 grams

Step-by-step explanation:

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Alexia started babysitting when she was in high school. She has built a reputation for herself and has become popular among the neighborhood parents. Alexia charges $10/h and gets a $5 automatic tip. Alexia needs $75 to buy a present for her mother. She wants to find out the minimum number of hours she needs to babysit at one job to get the money she needs. (5 points) a. Write an inequality to show how to solve this problem. Identify what the variable is and what it represents. b. Solve the inequality to find out the minimum number of hours Alexia needs to babysit. Show Your Work.

Answers

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X+3y=-14
-4x- 3y=2 this is elimination

Answers

X+3y= -14
-4x- 3y= 2
-----------------
-3x = -12
-3x/-3 = -12/-3
x = 4

X+3y=-14
4+3y=-14
4-4 +3y = 14-4
3y = -18
3y/3 = -18/3
y = -6

Check
-4x- 3y=2

-4(4)- 3(-6) = 2
-16+18 = 2
2=2

Does anyone know what 10.05-6.38 is?

Answers

Hi! I do! :)
And your answer =3.67
Steps:
10.05-6.38 turns into
10.05+-6.38
and that =3.67
Hope this helps!
If you are confused you should learn more about this stuff later on in school! :)

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