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Lemur [1.5K]
3 years ago
6

Answer quick please !!

Mathematics
1 answer:
lana [24]3 years ago
5 0

Answer:

B -- give brainliest pls

Step-by-step explanation:

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what is the slope-intercept form for a line that has a slope of -4/5 and passes through points (0,7)?
drek231 [11]

\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{7})~\hspace{10em} slope = m\implies -\cfrac{4}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-7=-\cfrac{4}{5}(x-0) \\\\\\ y-7=-\cfrac{4}{5}x\implies y=-\cfrac{4}{5}x+7

4 0
3 years ago
Some carpet cleaning costs are 1 room for $125, 2 rooms for $175, 3 rooms for $225. and 4 rooms for $275.00.Find and interpret t
Free_Kalibri [48]
First calculate the hourly rate, which is the difference of cleaning 2 and 1 rooms:
175-125=50

then calculate the initial value by subtracting the hourly rate from the "1 room" cost:
125-50=75

The initial cost might be something like driving to the place (which is only necessary once), while the rate covers work time or cleaning utensils used.
8 0
3 years ago
The length of a rectangle is twice its width. if the perimeter of the rectangle is 36 cm , find its area.
Brut [27]
L = Length
W = Width

L x W = area
Length = 2w

Lets find the width by solving for w.
2w + w = 36 
3w = 36
3w/3 = 36 / 3 
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So
L = 2 x 12 = 24
W = 12
L X W = area
24 x 12 = 288 cm^2

6 0
3 years ago
In the 2016 Rio Olympic games, the total of gold, silver and bronze medals won by China was 70.
Oksana_A [137]
26 gold metals

Explanation: 70 - 18 silver = 52 metals left

52/2= 26 … so 26 + 26= 52 52 + 18=70
3 0
2 years ago
If x + 2y = 15, what is the value of 3x + 6y/5
RideAnS [48]

Answer:

I <em>think</em><em> </em><em>9</em><em> </em><em>is</em><em> the</em><em> best</em><em> answer</em>

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2 years ago
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