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4 years ago

7 times the difference between m and 8

Mathematics

2 answers:

aniked [119]4 years ago

6 0

Answer:

7(m-8)

Step-by-step explanation:

We are given: 7 times the difference between m and 8

We want to write an expression. Let’s begin with “the difference between m and 8”.

Difference means subtraction. Therefore, we must subtract m and 8.

(m-8)

Now, let’s add on “7 times”

Times means multiply. Therefore, we must multiply 7 and the expression we just wrote.

7(m-8)

Therefore, 7 times the difference between m and 8 can be written as: 7(m-8)

lana66690 [7]4 years ago

6 0

Answer:

7(m-8)

Step-by-step explanation

7 times the difference between m and 8 = 7*(m-8)

First, we know that difference, in a mathematical term, means subtraction, and “times” Means multiplication.

But, since it says,” difference between m and 8”, we must put those in parentheses, so we know that it is m-8, not 7*m.

so, therefore you have 7*(m-8), or 7(m-8)

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3 years ago

how many numbers between 650 and 780 leave remainders of 4 and 6 when divided by 7 and 11 respectively? pls help lol im desperat

Tanya [424]

Answer:

18 numbers between 650 and 780 leave remainders of 4 when divided by 7.

12 numbers between 650 and 780 leave remainders of 6 when divided by 11.

Step-by-step explanation:

1. Number 655 is the smallest number that leaves the remainder of 4 when divided by 7. Number 774 is the greatest number that leaves the remainder of 4 when divided by 7. So,

$a_1=655\\ \\a_n=774\\ \\d=7\\ \\a_n=a_1+(n-1)d\Rightarrow 774=655+7(n-1)\\ \\7(n-1)=774-655\\ \\7(n-1)=119\\ \\n-1=17\\ \\n=17+1=18$

2. Number 655 is the smallest number that leaves the remainder of 6 when divided by 11. Number 776 is the greatest number that leaves the remainder of 6 when divided by 11. So,

$a_1=655\\ \\a_n=776\\ \\d=11\\ \\a_n=a_1+(n-1)d\Rightarrow 776=655+11(n-1)\\ \\11(n-1)=776-655\\ \\11(n-1)=121\\ \\n-1=11\\ \\n=11+1=12$

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4 years ago

Read 2 more answers

If h(x) = −5x − 10, find h(−2).<br> −20<br> 1.6<br> −1<br> 0

LiRa [457]

H(x) = -5x - 10
h(-2) = -5(-2) - 10
h(-2) = 10 - 10
h(-2) = 0

The solution is 0.

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4 years ago

Read 2 more answers

7 times the difference between m and 8​

7 times the difference between m and 8