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Lena [83]
3 years ago
5

I'm just confused on all of it

Mathematics
1 answer:
balandron [24]3 years ago
4 0
Let's solve for x.<span><span><span>3x</span>+<span>4y</span></span>=36</span>Step 1: Add -4y to both sides.<span><span><span><span>3x</span>+<span>4y</span></span>+<span>−<span>4y</span></span></span>=<span>36+<span>−<span>4y</span></span></span></span><span><span>3x</span>=<span><span>−<span>4y</span></span>+36</span></span>Step 2: Divide both sides by 3.<span><span><span>3x</span>3</span>=<span><span><span>−<span>4y</span></span>+36</span>3</span></span><span>x=<span><span><span><span>−4</span>3</span>y</span>+12</span></span>Answer:<span>x=<span><span><span><span>−4</span>3</span>y</span>+<span>12

i got dis

</span></span></span>
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Step by step explanation thanks
ratelena [41]

Answer:

75%

Step-by-step explanation:

\frac{90}{120}*100=\frac{9}{12}*100=\frac{3}{4}*100=3*25=75%%

7 0
3 years ago
The hart family drove 10 hours to their vacation spot. they drove an average of 48 miles each hour. how miles did they drive in
tankabanditka [31]

Distance = Average speed * Time = 48*10 = 480 miles

So, they drove for 480 miles

8 0
3 years ago
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My teacher gave us the answers but we just need to show the work for solving the problems. Please help me
Radda [10]

Answer:

7

Step-by-step explanation:

16x + 22 = 134 ..... because if the two lines are parallel alternative exterior angles are congruent

16x = 134 - 22

16x = 112

\frac{16x}{16}  =  \frac{112}{16}

x = 7

hope it helps

for any question comment me ❤❤

3 0
3 years ago
What are the solutions of this system of equations?
SpyIntel [72]

Answer:

Option C is correct.

Step-by-step explanation:

y = x^2-x-3     eq(1)

y = -3x + 5      eq(2)

We can solve by substituting the value of y in eq(2) in the eq(1)

-3x+5 = x^2-x-3

x^2-x+3x-3-5=0

x^2+2x-8=0

Now factorizing the above equation

x^2+4x-2x-8=0

x(x+4)-2(x+4)=0

(x-2)(x+4)=0

(x-2)=0 and (x+4)=0

x=2 and x=-4

Now finding the value of y by placing value of x in the above eq(2)

put x =2

y = -3x + 5

y = -3(2) + 5

y = -6+5

y = -1

Now, put x = -4

y = -3x + 5

y = -3(-4) + 5

y = 12+5

y =17

so, when x=2, y =-1 and x=-4 y=17

(2,-1) and (-4,17) is the solution.

So, Option C is correct.

7 0
3 years ago
Read 2 more answers
Is this a function? please explain if possible...​
zlopas [31]

It is a function. Every x value is different.

3 0
2 years ago
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