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Gnesinka [82]
3 years ago
13

SOMEONE PLEASE HELP QUICKLY!!! I’LL MARK BRAINLIEST

Mathematics
1 answer:
Rasek [7]3 years ago
5 0

Answer:

x=18.5 y=14.2

Step-by-step explanation:

The unmarked angle for the top/x triangle is 109 (all angles add up to 180, 180-50-21=109)

Use cosine rule:

(a/sina)=(b/sinb)

(x/sin109)=(15/sin50)

(x/sin109)=19.58110934

x=18.51430261

The top-most angle of the bottom/y triangle is 71 (angles on a straight line are 180, 180-109=71)

The righthand angle of the bottom/y triangle is 19 (angles in a triangle add to 180, 180-71-90=19)

Use cosine rule again:

(a/sina)=(b/sinb)

(y/sin71)=(15/sin90)

y/sin71=15

y=14.18277863

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Henrietta buys twelve pounds of bananas and ten pounds of apples for $ 12 . Gustavo buys eight pounds of bananas and five pounds
Olegator [25]

Answer:

The price per pound of bananas is $0.5 and the price per pound of apples is $0.6

Step-by-step explanation:

Let

x -----> the price per pound of bananas

y -----> the price per pound of apples

we know that

12x+10y=12 -----> equation A

8x+5y=7 ----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

The intersection point is (0.5,0.6)

see the attached figure

therefore

The price per pound of bananas is $0.5

The price per pound of apples is $0.6

4 0
3 years ago
Helppppppp me fast.Tysm please
mrs_skeptik [129]

Answer:

704 cm

Step-by-step explanation:

The two triangles are 8x12=96 and since there are two triangles 96x2=192.

Next you do the top and bottom rectangles 10x16=160 and the two rectangles are the same size so 160x2=320.

Now you do the middle rectangle 16x12=192.

Now you add all the areas together 192+320=512+192=704cm.

So the answer is 704 cm!

7 0
3 years ago
An electric motor pumps water into a pool at a rate of 500 liters per hour. After a tune up, it's rate increases by x liters per
Sidana [21]

Answer:

(500+x)*3=1800

Step-by-step explanation:

x will increase the rate so that the motor will pump 1800 liters in 3 hours, which makes x=100, and (500+100)*3=1800

4 0
3 years ago
What is the gcf of 18 &amp; 35 <br> A) 1 <br> B) 7<br> C) 18<br> D) 3 <br> right answer (brainlist)
Lubov Fominskaja [6]
The answer to the equation is D-3
3 0
3 years ago
Read 2 more answers
What two numbers would you combine first?
IrinaVladis [17]
5 and 95, because they add up to a multiple of ten. 5+95 = 100
Then you can easily add 36+100 = 136.
Hope I helped :)
4 0
3 years ago
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