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Karolina [17]
3 years ago
11

PLEASE HELP THANKS!!

Mathematics
2 answers:
mafiozo [28]3 years ago
6 0

Answer: a) x = 5   b) x = 12

Step-by-step explanation: For each one you just do the inverse to get it on the other side of the equal sign. For example x + 3 = 8 would be like this :

1. x + 3 = 8

2. x + 3 - 3 = 8 -3

    ( + 3 - 3 cancels out)

3. x = 5

       

zzz [600]3 years ago
5 0

a. x + 3 = 8

x = 8 - 3

x = 5

b. x - 5 = 7

x = 7 + 5

x = 12

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lina2011 [118]

Answer:  Triangle is 150 sq

Rectangle is 360 sq

Step-by-step explanation:

7 0
2 years ago
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Calculate 0.05181 ÷ 3.14 and write your answer
balandron [24]

Given:

0.05181 ÷ 3.14 = 0.0165

i)  0.02

ii) 0.016

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<h3>What is a mathematical expression ?</h3>

In mathematics, an expression or mathematical expression is a finite combination of symbols well formed according to context-dependent rules. Mathematical symbols can be used to define numbers (constants), variables, operators, functions, parentheses, punctuation marks, and groupings that help define the order of operations and other aspects of logical syntax.

Many authors distinguish between an expression and a formula, the first meaning a mathematical object and the second a statement about mathematical objects.

To learn more about mathematical expression, visit;

brainly.com/question/14462529

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5 0
1 year ago
What’s the answer to this question? I’m confused as to how to do this.
choli [55]

Answer:

x = 20

Step-by-step explanation:

(3x + 50) = (6x - 10)

Subtract 6x on each side

3x + 50 - 6x = -10

Combine the x values together

-3x + 50 = -10

Subtract 50 on each side

-3x = -60

Divide each side by -3

x = 20

8 0
3 years ago
The perimeter of a rectangular mat is 16 feet. It is 6 feet long. How wide is it?
dezoksy [38]

Answer:

2ft

Step-by-step explanation:

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7 0
2 years ago
An animals heart beats 80 beats per minute how many minutes does it take to beat a million times?
Klio2033 [76]

The key calculation in this problem is figuring out <em>how many times 80 goes into 1,000,000</em>. I'll build up in steps here.

80 x 5 = 400. This gives us a building block on our way to 1,000,000. From here, we can go further and say that 400 x 5 = 2,000; that 2,000 x 5 = 10,000; and finally that 10,000 x 100 = 1,000,000. Altogether, starting from 80, that's

80 x 5 x 5 x 5 x 100 = 80 x 25 x 500 = <em>80 x 12,500</em>

So, since 80 goes into one million 12,500 times, it takes 12,500 minutes for the animal's heart to beat that 1,000,000 times.

4 0
2 years ago
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