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Kipish [7]
3 years ago
15

WILL GIVE BRAINLIEST. If 3x+5y=13 and 6x+7y=20, find the value of y/x

Mathematics
2 answers:
Illusion [34]3 years ago
8 0

Answer:

X  =  1

Y  =  2

Step-by-step explanation:

3x+5y=13

3(1)+5(2)=13

3+10

13

6x+7y=20

6(1)+7(2)=20

6+14

20

Scilla [17]3 years ago
3 0

Answer:

y= 2 x=1

Step-by-step explanation:

You may use the substitution or even the elimination method. Hoped that helped ;)

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How do i solve for x
GarryVolchara [31]

Answer:

X is 36 and y is 48.

Step-by-step explanation:

So a couple of things here: both triangles are equal, and triangles always add up to 180 degrees. If we do some math:

180-108-48=24

This means that 2x-y needs to equal 24. We know what y is, it's 48 since both triangles are equal. Lets do some more math to find x.

48+24=72

72 divided by 2 = 36. 36 is the answer for x.

7 0
2 years ago
A recipe for bread calls for 4 1/4 cups of flour. Which expression gives the number of cups of flour needed if you want to make
lubasha [3.4K]
We know that It calls for 4 1/4 of flour

We have to multiply

What is 4 1/4 * 3 1/2= 14 7/8

You need 14 7/8 cups of flour to make 3 1/2 batches
Hope this helped!
4 0
3 years ago
Read 2 more answers
The midpoint of chord AB is ( , ), and the slope of chord AB is
kykrilka [37]

Answer:

See solution below

Step-by-step explanation:

Let the coordinate's of A and B be (1, 0) and (2,4) respectively

midpoint M (X, Y) = [(x1+x2/2, y1+y2/2)]

X = x1+x2/2

X = 1+2/2

X = 3/2

X = 1.5

Y = y1+y2/2

Y = 0+4/2

Y = 4/2

Y = 2

Hence the required midpoint (X, Y) is (1.5, 2)

Slope m = y2-y1/x2-x1

m = 4-0/2-1

m = 4/1

m = 4

Hence the slope is 4

<em>Note that the coordinates are assumed but the same calculation can be employed for any other coordinates</em>

7 0
2 years ago
Tina left for school at 8:35 a.m. and she got back home at 3:45 p.m. How long was
a_sh-v [17]

Answer:

430 minutes or 7 hours and 10 minutes

Step-by-step explanation:

From 8:35 am to 9 am is 25 minutes. There are 60 minutes in an hour and 9 am to 3 pm is 6 hours. 3:00 to 3:45 pm is an additional 45 minutes.

60 minutes x 6 hours = 360 minutes

360 + 25 + 45 = 430 minutes

3 0
2 years ago
Read 2 more answers
A circle whose center is the origin passes through the point (-5,12). Which point also lies on this circle?
schepotkina [342]
The answer is B(11, 2sqrt(12) )
proof

the main equation of the circle is   (x-x1)²+(y-y1)²=R²
where C(x1, y1) is the center 
so if the center is the origin, it is O(0,0), and the equation becomes
<span>  (x)²+(y)²=R²
</span>and the circle passes through the point (-5,2) so we can write 
(-5)²+12²=R², it implies R= sqrt(25+144)=sqrt(169)=13

and  for <span>B(11, 2sqrt(12) )     </span>11²+  (2sqrt(12))²= 121 + 48= 169= 13
it is checked.
3 0
3 years ago
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