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3 years ago

— 3k - 3= 18 Need help ?

Mathematics

1 answer:

creativ13 [48]3 years ago

8 0

Answer:

-7

Step-by-step explanation:

Add 3 to both sides of equation:

-3k = 21

Divide both sides by -3:

k = -7

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A number increased by 5 and divided by 2 is equal to 75. What is the number?Solve and Show World!

Likurg_2 [28]

$\begin{gathered} \text{Let's the number is N.} \\ So, \\ \frac{N+5}{2}=75 \\ N=145(\text{Ans)} \end{gathered}$

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1 year ago

What is a name for a symbol like +, -, ∙ or ÷?

Radda [10]

+ is positive, or plus
- is negative, or minus
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the fourth one is divide, can look like "/"

hope this helps

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3 years ago

Read 2 more answers

What is the meaning of percent? How can percent be estimated and found?

Luden [163]

Answer:

Percent means the number out of 100

use the formula ( Value you got / Original value) X 100

for percentage increase or decrease = (Change in value / original value) X 100

Step-by-step explanation:

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3 years ago

lin has 8 green apples and 2 red apples .if he slices the green apples in eighths ,how many apple slices will he have ?

lutik1710 [3]

64 because each apple is sliced into 8ths and there are 8 apples so 8x8=64

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3 years ago

5 rational and irrational numbers in decimal form

alexira [117]

Answer:

A rational number is a number that can be expressed as a fraction (ratio). This includes whole numbers, square roots that can be solved evenly, negatives, decimals, and repeating decimals that can be solved with a fraction.

$\frac{1}{2}$ ↔ .5
5 ↔ 5.0
$\sqrt{4}$ ↔ 2.0
-13 ↔ -13.0
0.38462... ( $\frac{5}{13}$ )

An irrational number is a number that is NOT rational. It's the complete opposite!

π ↔ 3.14159
.13133133...
$\frac{\sqrt{3} }{2}$ ↔ 0.86603...
- $\sqrt{5}$ ↔ -2.23607...
$\sqrt{5}$ ↔ 2.23607...

Hope this helps!!!

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3 years ago