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Bad White [126]
3 years ago
10

Which expression is 8y-5x+13y equivalent to after being simplified?

Mathematics
1 answer:
Inga [223]3 years ago
3 0
The answer is a because you add the same variables and 5x stays the same
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Charlotte is running at a race of 9 km/h.<br><br> What is Charlotte’s speed in m/s?
Novay_Z [31]

Answer:

9,000

Step-by-step explanation:

1 km=1,000

9*1,000=9,000

7 0
3 years ago
Jose asks his friends to guess the higher of two grades he received on his math tests. He gives them two hints. The difference o
AlekseyPX

Answer : 96

x – y = 16 --------> equation 1

\frac{1}{8} x +\frac{1}{2} y = 52

x is the higher grade and y is the lower grade

We solve the first equation for y

x - y = 16

-y = 16 -x ( divide each term by -1)

y = -16 + x

Now substitute y in second equation

\frac{1}{8} x +\frac{1}{2} ( -16 + x ) = 52

\frac{1}{8} x - 8 +   \frac{1}{2} x = 52

\frac{1}{8} x  +   \frac{1}{2} x - 8 = 52

Take common denominator to combine fractions

\frac{1}{8} x  +   \frac{4}{8} x  -8 = 52

\frac{5}{8} x - 8  = 52

Add 8 on both sides

\frac{5}{8} x   = 60

Multiply both sides by \frac{8}{5}

x = 96

We know x is the higher grade

96 is the higher grade of Jose’s two tests.

6 0
3 years ago
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What is 34-34<br><br> (A) 0<br><br> (B) 90<br><br> (C) 7<br><br> (D) 12
MissTica

Answer:

0

Step-by-step explanation:

6 0
2 years ago
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vlabodo [156]

Answer:

It would be D, a rectangle.

Step-by-step explanation:

the cross section is what shape forms from where the knife cuts.

7 0
2 years ago
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What transformation has changed the parent function f(x) = 3(2)^x to its new appearance shown in the graph below?
exis [7]

Answer:

  B.  f(x) - 2

Step-by-step explanation:

The parent function has a horizontal asymptote at y=0. The graphed function has a horizontal asymptote at y = -2, so the graph has been shifted down 2 units from the graph of the parent function.

Such a vertical shift is accomplished by subtracting 2 from each function value. The graph is of ...

  f(x) -2 . . . matches choice B

7 0
3 years ago
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