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2 years ago

687 is greater than 587. How much greater? Explain how you know without multiplying.

Mathematics

1 answer:

Juli2301 [7.4K]2 years ago

8 0

You know that if you are multiplying a number by 5, and multiplying the same number by 6, 6 is going to be bigger

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What is the equation of the graphed line written in standard form?

liraira [26]

Answer:

The last one 5x-3y=15 This is the same as y= (5/3)x -5

Step-by-step explanation:

5x-3y=15

Move 5x to the right (becoming negative)

-3y = -5x +15

Divide everything by - 3

y= (5/3)x -5

y intersect= -5 ( line crosses y coordinate at -5)

Slope = 5/3 From -5 you start counting (5 up,3 right,5 up,3 right.... OR 5 down,3 left,5 down,3 left........)

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2 years ago

Y+5 ——=0 solve for y X-1

Ira Lisetskai [31]

Answer:

y = -5

Step-by-step explanation:

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3 years ago

Use a benchmark to find an equivalent percent for each fraction. 9/10 and 2/5. Please help! :o will mark brainliest if can!

denpristay [2]

Answer

9/10=90% and 2/5=40%

Explanation

9÷10=0.9 0.9x100=90%

2÷5=0.4 0.4x100=40%

hope this helps!

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3 0

2 years ago

The quotient of a number and 15 is no greater than 450. What are the possible values. For the number?

FinnZ [79.3K]

A number can be represented by n. So n/15≤450 then multiply both sides by 15 to get n by itself n≤6,750 Hope this helped!!! :)

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3 years ago

Find the indicated sum of each sequence S8 of -2,-13,-24,-35

valentina_108 [34]

Answer:

The sum of the arithmetic sequence is $S_{8}=-324$ .

Step-by-step explanation:

A sequence is a set of numbers that are in order.

In an arithmetic sequence the difference between one term and the next is a constant. In other words, we just add the same value each time infinitely.

If the first term of an arithmetic sequence is $a_1$ and the common difference is d, then the nth term of the sequence is given by:

$a_{n}=a_{1}+(n-1)d$

For the sequence

$-2,-13,-24,-35,...$

The pattern is continued by adding -11 to the last number each time.

An arithmetic series is the sum of an arithmetic sequence. We find the sum by adding the first, $a_1$ and last term, $a_n$ , divide by 2 in order to get the mean of the two values and then multiply by the number of values, n

$S_{n}=\frac{n}{2}(a_{1}+a_{n})$

The sum of the arithmetic sequence is

$a_{8}=-2+(8-1)(-11)=-2-77=-79$

$S_{8}=\frac{8}{2}(-2-79})=4\left(-2-79\right)=4\left(-81\right)=-324$

3 0

3 years ago

6*87 is greater than 5*87. How much greater? Explain how you know without multiplying.

687 is greater than 587. How much greater? Explain how you know without multiplying.