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ddd [48]
3 years ago
12

Solve the system of equations. 2.5y + 3x = 27 5x – 2.5y = 5

Mathematics
1 answer:
worty [1.4K]3 years ago
3 0
X=4 and y=6
For this, you should use simultaneous equations
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Find the equation of the line specified.<br> The slope is 7, and it passes through ( 8, 6).
STALIN [3.7K]

Answer:

The answer is A

Step-by-step explanation:

Given that the equation of line is y = mx + c and the slope is 7 :

y = 7x + c

By substituting the coordinate(8,6) into the equation, in order to find the value of c:

6 = 7(8) + c

6 = 56 + c

c = 6 - 56

= -50

y = 7x - 50

(Hope this can help)

6 0
3 years ago
With the remaining 3/4 gallon of honey, Lila decided to bake some loaves of bread and several batches of cookies for her school
Aleksandr-060686 [28]
Find the least common denominator for all fractions: 12

3/4 = (3*3)/(4*3) = 9/12
1/6 = (1*2)/(6*2)
1/4 = (1*3)/(4*3)

Take the converted fractions to have the honey used taken away from the original total.
4 0
3 years ago
I will mark you the brainiest for the correct answer, please be correct, Have a good day and take care, thanks. ( VIEW THE IMAGE
makkiz [27]

Mistake in Line 2 : Was in the determining the values for a ,b,c

Mistake in Line 4 : Not taking the square roots of both sides.

Step-by-step explanation:

{a}^{2}  +  {b}^{2}  =  {c}^{2}

First Mistake : Line 2

a = x \\ b = 6 \\ c = 10

Second Mistake : Line 4

136 =  {x}^{2}  \\ not \\ 136 = x

Correct Solution :

{x}^{2}  +  {6}^{2}  =  {10}^{2}  \\  {x}^{2}  =  {10}^{2}  -  {6}^{2}  \\  {x}^{2}  = 100 - 36 \\

{x}^{2}  = 64 \\  \sqrt{ {x}^{2} }  =  \sqrt{64}  \\ x = 6

3 0
3 years ago
3/4 times the amount of 20
klio [65]

Answer:

= { \rm{ \frac{3}{4}  \times 20}} \\  \\  = { \rm{ \frac{60}{4} }} \\  \\  = { \boxed{ \tt{ \:  \: 15 \:  \: }}}

8 0
3 years ago
Read 2 more answers
What is the area of a trapezoid ABCD with bases AB and CD , if:<br> AB=10cm, BC=DA=13cm, CD=20cm
aliya0001 [1]

Step-by-step explanation:

to find height :

draw a height from A to CD

height = (13) 2 - 5) 2 = 12 Cm

area = 10+20 /2 X 12= 180 cm 2

7 0
3 years ago
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