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kaheart [24]
2 years ago
15

Solve the system by substitution: -4.5x-2y=-12.15 3.25x-y=-0.75

Mathematics
1 answer:
valina [46]2 years ago
4 0

Answer:

The answer is x=0.97 while y=3.90

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gracie and mary and nancy each have a small collection of seashells gracie has 5 more than 1 and 1/4 times the number of shells
Fiesta28 [93]
X = mary's shells
g = 1 1/4x + 5
n = 1 1/2x+ 1
g = n

1 1/4x + 5 = 1 1/2x + 1
5/4x + 5 = 3/2x + 1...multiply by common denominator of 4, this will get rid of fractions...however, this is optional...u can work with fractions if u wish.
5x + 20 = 6x + 4
5x - 6x = 4 - 20
-x = - 16
x = 16....so Mary has 16 shells
6 0
3 years ago
Determine if the angles are greater than (>), less than (<), or equal (=) to each other.
Gwar [14]
  • Opposite side to <WYX=WX
  • Opposite side to <XWY=XY

Here

  • WX=12
  • XY=15

As

  • WX<XY

\\ \sf\longmapsto

4 0
2 years ago
I need help ahhh someone please
Xelga [282]
Translate down and reflect over a vertical line! :)

it means bring the cup down and then flip
8 0
3 years ago
F(x) = 2x + 3g(x) = 2x² + 6x + 13Find: (gºf)(x)
Butoxors [25]

Answer:

The function (gof)(x) is;

(g\circ f)(x)=8x^2+36x+49

Explanation:

Given the functions;

\begin{gathered} f(x)=2x+3 \\ g(x)=2x^2+6x+13 \end{gathered}

Solving for the function;

(g\circ f)(x)=g(f(x))

so, we have;

\begin{gathered} g(f(x))=2(f(x))^2+6(f(x))+13 \\ g(f(x))=2(2x+3)^2+6(2x+3)+13 \\ g(f(x))=2(4x^2+12x+9)^{}+6(2x)+6(3)+13 \\ g(f(x))=8x^2+24x+18^{}+12x+18+13 \\ g(f(x))=8x^2+24x^{}+12x+18+18+13 \\ g(f(x))=8x^2+36x+49 \end{gathered}

Therefore, the function (gof)(x) is;

(g\circ f)(x)=8x^2+36x+49

5 0
9 months ago
1.toyland is having a sale all items are 20% off How much will you save on an item that usually costs $95?
ladessa [460]
T<span>oyland is having a sale all items are 20% off

so all items are sold at 1-20% = 80% of their original prices

for </span><span>an item that usually costs $95,
</span><span>
the sale price = $95 * 80% = $95 * 0.8

= $76

good luck w Mr. Horton :)

</span>
5 0
3 years ago
Read 2 more answers
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