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2 years ago

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1) 5÷4=25÷y

1 answer:

emmasim [6.3K]2 years ago

5 0

1) $\frac{5}{4}= \frac{25}{y} 
$
5y=100
y=20

2) $\frac{x}{0.6} = \frac{9}{0.5}$
$\frac{10x}{6} = \frac{90}{5}$
50x=540
x=10.8

3) 2x=12
x=6

4) x-7+x
2x-7

5) x-x+4=4

If you need explanation just ask.

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3x + (x-8) = 23 how do I solve it

Ostrovityanka [42]

<span>3x + (x-8) = 23

Combine like terms first. You can combine 3x and x because they have the same variable.

4x - 8 = 23
Now add 8 to both sides.
4x = 31

Last step is to divide both sides by 4 to isolate the x.
4/4x = 31/4

x = 7.75 is the answer.</span>

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3 years ago

Write the base-ten number for 400 + 50+ 1.

TiliK225 [7]

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2 years ago

Which of the following options results in a graph that shows exponential growth?

poizon [28]

Answer:

$f(x)=0.7(5)^x$

Step-by-step explanation:

$\text{Exponential function: }y=a\cdot b^x$

It is two types of function.

Exponential Growth: If function increase as value of x increase.

In this case, a>0 and b>1

Exponential decay: If function decrease as value of x increase.

In this case, a>0 and 0<b<1

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Here a=0.75>0 and b=5>1

Therefore, This function is exponential growth.

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3 years ago

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2 years ago

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A flagpole cast a shadow 16 feet long at the same time a pole 9 feet high casts a shadow 6feet long what is the height in feet o

Doss [256]

The pole would be 24 feet high.
X/16=9/6
X=24

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3 years ago