3 years ago

Solve 4x+3y=-2 3x + 5y = 15

Mathematics

1 answer:

ivann1987 [24]3 years ago

8 0

Answer:

x=-5 y=6

Step-by-step explanation:

Multiply the first by 3 and the second by -4

Then add them. Y will be 6

Put 6 for y in the first one and youll find x=-5

You might be interested in

viet learned 25 new spelling words last week. He learned 5 times as many words as Max. How many words did Max learn? Draw a lbar

masya89 [10]

Max learned 125 new spelling words i know this becuse 25 times 5 is 125

8 0

3 years ago

A city received 2 inches of rain each day for 3 days. the meteorologist said that if the rain had been snow , each inch of rain

muminat

30 inch of snow that day

3 0

3 years ago

If (m, 2) is on a circle with center (−3, 2) and radius 8, what is a value of m?

Talja [164]

$\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ -3}}\quad ,&{{ 2}})\quad 
% (c,d)
&({{ m}}\quad ,&{{ 2}})
\end{array}\qquad 
% distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}$

$\bf \textit{we know the distance from m,2 and -3,2(center) is the radius}
\\\\\\
d=8\implies 8=\sqrt{[m-(-3)]^2+[2-2]^2}
\\\\\\
8=\sqrt{(m+3)^2+(0)^2}\implies 8=\sqrt{(m+3)^2}\implies 8^2=(m+3)^2
\\\\\\
64=(m+3)^2\implies \sqrt{64}=\sqrt{(m+3)^2}\implies 8=m+3
\\\\\\
8-3=m$

4 0

4 years ago

(PLEASE HELP, BRAINLIEST IF CORRECT) A jar is filled with quarters and nickels in the ratio 1 2/5 to 2 1/3. If there are 24 quar

MissTica

Answer:

40 nickels

Step-by-step explanation:

1 2/5 to 2 1/3 = 7/5 : 7/3

= 21/15 : 35/15

21/15 = 24

35/15 = x

(35/15 * 24) / 21/15

∴ 56 ÷ 21/15

= 40 nickels

3 0

2 years ago

Read 2 more answers

How do you divide by pi?

kirill115 [55]

Usually when you are using the pi term then your round and just use 3.14.

5 0

3 years ago

Read 2 more answers