2 years ago

I need help please with unit rates

Mathematics

2 answers:

Brums [2.3K]2 years ago

8 0

B 32

And c30 hopefully it helps practically the same answer as above

Fynjy0 [20]2 years ago

5 0

Answer

b 32

c 50

Step-by-step explanation:

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20 POINTS AND BRAINLIEST!! Write an exponential function in the form y=ab^x

Rudik [331]

Answer:

$y=13(4)^x$

Step-by-step explanation:

We have the exponential function of the form:

$y=ab^x$

And it goes through the points (0, 13) and (3, 832).

Hence, when we substitute in 0 for x, we should get 13 for y. Therefore:

$13=ab^0$

Since anything to the zeroth power is 1, this yields:

$a=13$

So, we determined that the value of a is 13.

So, our function is now:

$y=13b^x$

We will need to determine b. We know that y equals 832 when x is 3. Hence:

$832=13(b)^3$

Divide both sides by 13:

$b^3=64$

Take the cube root of both sides:

$b=4$

Hence, our b value is 4.

Therefore, our entire equation is:

$y=13(4)^x$

3 0

3 years ago

joseph is shopping for school supplies he can buy a box of 24 pens for $4.32 or a box of 36 pens for $5.76. which is a better bu

Ugo [173]

I would say it’s better to buy the 36 box pens. 24\4.32=5.6 on the other hand the box of 36 is 36/5.76=6.25

8 0

2 years ago

What is the slope of y=-x perpendicular to the equation

tensa zangetsu [6.8K]

$\frac{1}{2} x$

7 0

2 years ago

A sweater that normally costs $32.00 is on sale for $24.00. What is the percent

Vlad1618 [11]

Answer:

25 %

Step-by-step explanation:

Percentage is given by :

$\%=\dfrac{\text{original value-new value}}{\text{origial value}}\times 100$

Original cost of sweater is $32 and sale cost is $24. So,

$\%=\dfrac{32-24}{32}\times 100\\\\=25\%$

Hence, 25 % is the markdown on the sweater.

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2 years ago

Combine like terms.<br> By – 4z + 3y + 5z = 11y + [? ]z

Sliva [168]

Answer:

11y + 1z

Step-by-step explanation:

Like terms are ones that have the same variable (or set of variables).

8y - 4z + 3y + 5z

= (8 +3)y +(-4 +5)z

= 11y +1z

Usually written as 11y+z.

7 0

3 years ago