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scoundrel [369]
3 years ago
9

Four times the sum of some number plus 3 is equal to 8 times the number minus 12

Mathematics
1 answer:
Stells [14]3 years ago
4 0

Answer: 4(x+3)= 8x-12

Step-by-step explanation:

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Which of the following numbers are whole numbers
Firdavs [7]

Answer:

B - 2469 and F - 183

Step-by-step explanation:

B and F are whole numbers because they don't have any decimal places.

8 0
3 years ago
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Three more than the quotient of a number and 2 is equal to 8. Use the variable for the unknown number.
Hunter-Best [27]
The unknown number would be 16.
8 times 2 is 16
7 0
3 years ago
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Jodie wanted to match Mandy's obstacle course record of 73.4 seconds. She had already spent seconds on wall climbing and 11.78 s
Artyom0805 [142]

The time left to match the record will be 61.62 seconds. The correct option is A.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Jodie wanted to match Mandy's obstacle course record of 73.4 seconds. She had already spent seconds on wall climbing and 11.78 seconds on the ropes.

The time left to match the record will be calculated as below:-

Time left = 73.4 - 11.78 = 61.62

Therefore, the time left to match the record will be 61.62 seconds. The correct option is A.

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5 0
2 years ago
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Find the perimeter of image below. 42 square units, 52 square units, 56 square units, 44 square units
mylen [45]

Answer:

194 square units

Step-by-step explanation:

perimeter is the measurement of the distance surrounding a shape. There fore, the perimeter of the shape is: 42+53+56+44=194 square units

8 0
3 years ago
Seven times the sum of a number,n,and four <br> what will be the expressions ?
harina [27]

First, let's write "the sum of a number and 4" as:


<span>n+4</span>.


Then, "seven times" the sum can be written as:


<span>7<span>(n+4)</span></span>

<span><span>
</span></span>

This "is 6" or "is equal to 6" and can be written as:


<span>7<span>(n+4)</span>=6</span>

<span>
</span>

To solve, first expand the term in parenthesis on the left side of the equation by multiplying each term in the parenthesis by 7


<span><span>(7×n)</span>+<span>(7×4)</span>=6</span>

<span>
</span>

<span>7n+28=6</span>

<span>
</span>

Next, subtract 28 from each side of the equation to isolate the n term while keeping the equation balanced:


<span>7n+28−28=6−28</span>

<span>
</span>

<span>7n+0=−22</span>

<span>
</span>

<span>7n=−22</span>

<span>
</span>

Now, divide each side of the equation by 7 to solve for n while keeping the equation balanced:


<span><span><span>7n</span>7</span>=−<span>227</span></span>

<span><span>
</span></span>

<span><span><span>7n</span>7</span>=−<span>227</span></span>

<span><span>
</span></span>

<span>n=−<span>227</span></span>

<span><span>
</span></span>

The number is <span>−<span><span>227</span></span></span>

6 0
3 years ago
Read 2 more answers
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