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Andre45 [30]
3 years ago
13

I know its easy but I need it ASAP PLZ THE ANSWER!!! WILL MARK BRAINLIEST IF RIGHT

Mathematics
1 answer:
navik [9.2K]3 years ago
8 0

Answer:

y= \frac{3}{4}= 0.75

Step-by-step explanation:

To subtract the second equation from the first equation, you have to divide the equation as left of the equal sign and right of equal sign then do the calculation separately. The calculation will look like this

-3x +2y     =     7

-3x - 2y     =     4

_____________   -

(-3x +2y) - (3x -2y)     =   7 - 4

-3x + 2y + 3x + 2y     =   3

4y= 3

y= \frac{3}{4}= 0.75

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Shaun had a collection of 840 matchbox vehicles. Of these vehicles, 15% are four-wheelers and 30% are convertibles. The rest are
lakkis [162]

Answer:

<h2>462</h2>

Step-by-step explanation:

15% of 840 is 126

30% of 840 is 252

 252

<u>+  126 </u>

<em> 378</em>

<em></em>

840 - 378 = <em>462</em>

or

--------------------------------------------------------------------------------------------------------------

55% of 840 is...

<em>462</em>

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<em>Hope this helps! <3</em>

5 0
3 years ago
Read 2 more answers
A satellite is in an approximately circular orbit 36,000 kilometers from Earth’s surface. The radius of Earth is about 6400 kilo
lisov135 [29]

The answer is 266,407.507 km

5 0
3 years ago
Find the area of a parallelogram with sides of 6 and 12 and an angle of 60°.
Anna007 [38]

ANSWER

36√3 square units.

EXPLANATION

The area of a parallelogram is obtained by multiplying the base by the height.

We use the sine ratio to obtain the height.

\sin(60 \degree)  =  \frac{h}{6}

h = 6 \sin(60 \degree)

h = 3 \sqrt{3}

The area becomes:

12 \times 3 \sqrt{3}  = 36 \sqrt{3} {units}^{2}

4 0
3 years ago
Solve the inequality: (x+3)(x−4)&lt;−12
melamori03 [73]

Answer:

0<x<1

Step-by-step explanation:

(x+3)(x−4)<−12

FOIL

x^2 -4x+3x -12 <-12

x^2 -x -12 <-12

Add 12 to each side

x^2 -x -12+12 <-12+12

x^2 -x <0

Factor out an x

x(x-1) <0

Using the zero product property

x(x-1) =0

x=0  x-1=0

x=0  x=1

Check the ranges

x<0

x(x-1) <0        

- * - >0

False

0<x<1

x(x-1) <0        

+ * - <0

True

x>1

x(x-1) <0        

+ * + >0

False

3 0
3 years ago
Which is greater,,, 3/6 or 2/5
Karolina [17]
3/6 is the answer

3/6is 0.50 and 2/5 is 0.40

Just divide them
6 0
3 years ago
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