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Scilla [17]
3 years ago
8

What operation extends this pattern? 100, 85, 70, 55... A) add 15 B) subtract 15 C) multiply by 15 Eliminate D) divide by 15

Mathematics
1 answer:
Serggg [28]3 years ago
3 0
Hello! If you look at the pattern, 100 - 85 is 15, 85 - 70 is 15, and 70 - 55 is 15. You don't divide, because the numbers would be much smaller, or multiply, because the numbers would be much bigger. You would subtract 15 in order to get the next numbers. The answer is B.
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finlep [7]

Answer:

225 students

Step-by-step explanation:

<u><em /></u>9\div4%

<u><em>Calculate</em></u>

<u><em /></u>\frac{9}{0.04}

<u><em>Multiply both the numerator and denominator with the same integer</em></u>

<u><em /></u>\frac{900}{4}

<u><em>Cross out the common factor</em></u>

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<em>I hope this helps you</em>

<em>:)</em>

7 0
3 years ago
NEED ANSWER ASAP WILL GIVE BRAINLIEST FOR CORRECT ANSWER
Hitman42 [59]

Answer:

exponent

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Graphs and equations of lines
dmitriy555 [2]

Answer:

a) y = -\frac{3}{4} x + 5

b) y = 6x-18

c) y = \frac{4}{5} x+\frac{19}{5}

Step-by-step explanation:

a) The slope / gradient is the coefficient of x, so for a) it will be y=-\frac{3}{4} x + C.

C is the y-intercept, so the full equation will be y = -\frac{3}{4} x + 5.

b) Again, since the slope is 6, we know the coefficient of x will be 6.

Now, we have a point on the line and so far, we know the equation is y=6x+c. The coordinates of the point are (2,-6). So now we substitute the y and x values into the equation in order to find C.

-6 = 6(2)+C

-6 = 12+C

C = -18

y = 6x-18

c) To find the gradient we must use the formula \frac{rise}{run}.

rise = change in y value

run = change in x value

so, the gradient = \frac{7-3}{4-(-1)} = \frac{4}{5}

Now the equation is y = \frac{4}{5} x +C

Again, to find C we substitute any of the coordinates into the equation. I will use (-1,3).

3 = \frac{4}{5} (-1) +C

3 + \frac{4}{5} =C

C =\frac{19}{5}

so c) is y = \frac{4}{5} x+\frac{19}{5}

6 0
3 years ago
HELP PLEASE! Find the standard deviation for Data set 1 and 2. round to the nearest hundred. DATA SET ONE: 8.2, 11.6 8.7, 10.6,
Elan Coil [88]

Answer:

0.92 and 1.25 respectively

Step-by-step explanation:

0.92 and 1.25 respectively

first the mean of each value which is 9.7 and 9.8 respectively

standard deviation = square root of the mean deviation of each value

then deduct the mean from each element

and square each value and add them together. not you should square each deviation value before you add them

at last divide the result by the number of frequency and find it's square root

3 0
4 years ago
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yanalaym [24]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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