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Svetllana [295]
3 years ago
15

Nine tenths of a sum a money 2.70find the sum of money

Mathematics
1 answer:
irakobra [83]3 years ago
7 0

Answer:

$3.00

Step-by-step explanation:

Setting up an equation with a variable and using key words from the problem will allow you to solve for the sum of money.

'x' = sum money

'nine tenths of a sum' = \frac{9}{10}x

'is 2.70':  = 2.70

\frac{9}{10}x=2.70

Multiply both sides by the reciprocal of 9/10 (10/9):  

(10/9)(9/10)x = 2.70(10/9)

x = 27/9 = $3.00

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Choose the linear inequality that describes the graph. The gray area represents the shaded region.
jek_recluse [69]

Answer:

2x + 3y ≥ 5

Step-by-step explanation:

See the graph attached.

The bold straight line passes through the points (1,1) and (4,-1).

Therefore, the equation of the straight line will be  

\frac{y + 1}{- 1 - 1} = \frac{x - 4}{4 - 1}

⇒ 3(y + 1) = - 2(x - 4)

⇒ 3y + 3 = - 2x + 8

⇒ 2x + 3y = 5 ............. (1)

Now, the shaded region i.e. the solution to the inequality does not include the origin(0,0).

So, putting x = 0 and y = 0 in the equation (1) we get, 0 < 5

Therefore, the inequality equation is 2x + 3y ≥ 5 (Answer)

6 0
2 years ago
Find the equation for the line that passes through the point (1,−4) and that is parallel to the line with the equation y=4.
diamong [38]

Answer:

y = -4.

Step-by-step explanation:

The line with equation y = 4 is a horizontal line on the coordinate plane which passes through the y-axis at y = the point (0, 4).

The other line parallel to this must also be horizontal and , as it passes through the point (1 , -4), must also pass through the y-axis at  ( 0, -4). The equation of this line is y = -4.

6 0
3 years ago
YOOO MARKIN BRAINIEST !!
Brilliant_brown [7]
Y ≥ 2x-5
y-intercept is -5, from there go 2 up 1 over ( slope is rise over run)
greater than or equal so the line is connected
now find the shaded area by plugging in (0,0)
0 ≥2(0)-5
0 ≥-5 is correct so shade the area that to the left of the line, (the whole area that including (0,0))

y<-3x
y intercept is 0 so start from there and go down 3 right 1 (or go up 3 left 1)
broken like cause no or equal sign
the (0,0) is on the line so use (1,1) to find the answer
1<-3(1) is incorrect so shade the area that dies not include (1,1) or the entire area to the left of that line

you can see the section where both shaded area cross, thats the answer so erase every area you shaded that isn’t the answer so
THE ANSWER IS C
3 0
3 years ago
Read 2 more answers
Which three dimensional figure has double the number of edges as faces?
notka56 [123]

A cube because it has 6 faces/sides and 12 edges.

8 0
3 years ago
Read 2 more answers
I'm begging you! HELP ME
love history [14]
Okay first off. You want to combine like terms. 

2.75-1.5=1.25j 
2.25+3=5.25

Now you just fit those two answers into the final answer and you have:

1.25j+5.25.
7 0
3 years ago
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