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3 years ago

12

Can someone help with this?

1 answer:

matrenka [14]3 years ago

5 0

Answer:

i wanna say -80?

Step-by-step explanation: so when you go from -8 to -11 its counts by 3 -11 to -14 its 3 so count up to get our answer. i just seen how many was in each 5 set which was 12 so i did -20 -12 so then i just added up and got -80

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Mei does 6 problems in 18 minutes. How many can she complete in 12 minutes

Dmitriy789 [7]

Do cross multiplication

<u>6</u> = <u>x</u>
18 12

Now cross multiply

(6)(12) = (18)(x)

72 = 18x

Divide both sides by 18

<u>72</u> = <u>18x</u>
18 18

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So tMei can complete 4 problems in 12 minutes.

5 0

3 years ago

Which expression is equivalent to(6x + 2) + (3x + 7)

gavmur [86]

Answer:

9x+9

Step-by-step explanation

Combine like terms (6x and 3x, 2 and 7)

3 0

3 years ago

Read 2 more answers

The midpoint of AB is M(1, -4). If the coordinates of A are (-3,-6), what are the coordinates of B?

kramer

Answer:

The coordinates of B is (5,-2)

Step-by-step explanation:

In order to find the coordinates of B, you have to use midpoint formula. Then substitute the following values into the formula :

$m = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )$

Let (x1,y1) be A (-3,-6),

Let (x2,y2) be B,

Let midpoint be M (1,-4),

$(1, - 4) = (\frac{ - 3 + x2}{2} , \frac{ - 6 + y2}{2} )$

$by \: comparison, \:$

$\frac{ - 3 + x2}{2} = 1$

$- 3 + x2 = 2$

$x2 = 5$

$\frac{ - 6 + y2}{2} = - 4$

$- 6 + y2 = - 8$

$y2 = - 2$

6 0

3 years ago

Translate the phrase into an algebraic expression 7 more than c

Svetllana [295]

Answer:

Step-by-step explanation:

c+7

you have 7 more then a number c

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3 years ago

What is the slope intercept from of the equation of the line that that passes through the points (-3, 2) and (1, 5)

viva [34]

The slope-intercept form of a line:

$y=mx+b\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\to slope\\\\b\to y-intercept$

We have:

$(-3,\ 2)\to x_1=-3,\ y_1=2\\(1,\ 5)\to x_2=1,\ y_2=5$

Substitute:

$m=\dfrac{5-2}{1-(-3)}=\dfrac{3}{4}$

$y=\dfrac{3}{4}x+b$

Put the values of coordinates of the point (1, 5) to the equation of a line:

$5=\dfrac{3}{4}(1)+b\\\\5=\dfrac{3}{4}+b\qquad|-\dfrac{3}{4}\\\\b=4\dfrac{1}{4}$

Answer: $y=\dfrac{3}{4}x+4\dfrac{1}{4}$

5 0

3 years ago