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4 years ago

Write the verbal sentence as an equation:

Mathematics

1 answer:

-Dominant- [34]4 years ago

4 0

Answer:

2n-12=7n-15

Step-by-step explanation:

I hope i did it right im sorry if i didnt! in the first sentence it tells you "twelve less than" therefore its telling you that you are going to be subtracting which automatically means that its not going to be the first thing you write down. You then continue reading and it tells you "2 times a number (n)" which is written as 2n because to things side by side like that signifies that you are multiplying. Then you have your equal sign which is self explanatory. and basically you follow the same reasoning as you did the first part and you end up with 7n-15 and the other half of your equation. I hope that helped!

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Simplify the expression 3^-8× 34.

Alborosie

Answer:

= $\frac{34}{6561}$

Step-by-step explanation:

$= 3^{-8}\times \:34\\= 34\times \frac{1}{3^{8} } \\= \frac{1\times \:34}{3^{8} } \\= \frac{34}{3^{8} } \\= \frac{34}{6561}$

5 0

4 years ago

4/5+ unknown number =14/15

prohojiy [21]

Answer:

The unknown number is 2/15.

Step-by-step explanation:

4/5+x=14/15

x=14/15-4/5

x=14/15-12/15

x=2/15

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3 years ago

Read 2 more answers

A sample of lake water contains 150grams of salt. If 30% of the water sample is salt, find the number of grams the entire sample

hjlf

Answer:

500 grams

Step-by-step explanation:

Let's say that the total number of grams of the sample is x. We know that 30% of x is salt and we also know this quantity is 150 grams. So, we can write this as:

30% * x = 150

Remember that % is simply "out of 100", so 30% = 30/100 = 0.30. Then:

0.30 * x = 150

Divide both sides by 0.30:

x = 500 grams

Hope this helps!

5 0

3 years ago

Write the solution as an inequality -10x>250

jeyben [28]

Answer:

(X<-25) or -oo, -25

Step-by-step explanation:

because max is -25

3 0

3 years ago

Read 2 more answers

Drag the fraction to the boxes and below to complete the subtraction sentence

Scilla [17]

Answer:

first box is 4/5 and the second box (=) is 7/15

4 0

3 years ago