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3 years ago

Find the percent of change. 32 to 28

Mathematics

1 answer:

jasenka [17]3 years ago

4 0

Answer:

12.5 %

Step-by-step explanation:

change = 32 − 28 = 4 pages

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An economy package of cups has 460 green cups. If the green cups are 20% of the total package, how many cups are in the package?

Oksi-84 [34.3K]

2300 cups because if 460 is 20%, multiply the 460 x 5 to get 100%

3 0

3 years ago

Q(3x)=12x+2 then what is Q(x-2)

Mandarinka [93]

Answer:

it's ax+b form answer is Q(x-2)=4x-6

Step-by-step explanation:

ax+b=Q(x),Q(x-2)=a(x-2)+2

Q(3x)=a(3x)+b=12x+2, 3a=12 =>a=4,b=2

the original q of x is 4x+2

Q of x-2 =4(x-2)+2=4x-8+2=4x-6

8 0

2 years ago

Zachary bought 8 hot dogs at the fair. He paid a total cost of $12.00 for the food. Find the unit cost of one hot dog.

masya89 [10]

Answer:.66

Step-by-step explanation:

You divide 8 and 12

3 0

3 years ago

Read 2 more answers

Pls help show work please

Aloiza [94]

Each bracelet is $5, this can be represented as 5b. (Where b is number of bracelets)

Each necklace is $8, this can be represented as 8n. (Where n is number of necklaces)

We know that the total money raised needs to be at least $100, but it can also be more than that.

So we know that 8n+5b will be greater than or equal too 100.

8n+5b ≥ 100

3 0

3 years ago

A vehicle is moving at a constant speed travels 45 miles in 3/4 hour. The driver thinks he will be late to a meeting that is sti

Ivahew [28]

The unit rate is 60 miles per hour and the driver will reach before time with the calculated constant speed

Step-by-step explanation:

Given

Distance = d = 45 miles

Time = t = 3/4 hour

The unit rate is defined as the distance per unit time. In this case, the unit rate can also be called speed.

So,

$s = \frac{d}{t}\\s = \frac{45}{\frac{3}{4}}\\s = 45 * \frac{4}{3}\\s = 60\ miles\ per\ hour$

Using this unit rate we can see if the car can travel 65 miles in 1.25 hours or not

Given

Distance = d1 = 65 miles

Speed = s = 60 miles per hour

Putting the values in the formula for speed

$s = \frac{d_1}{t_1}\\60 = \frac{65}{t_1}\\t_1 = \frac{65}{60}\\t_1 = 1.08\ hours$

As we can see that 1.08 is less than 1.25 so the driver will reach the meeting before time if he drives on a constant speed of 60 miles per hour

Hence,

The unit rate is 60 miles per hour and the driver will reach before time with the calculated constant speed

Keywords: Speed, unit rate

Learn more about speed at:

#LearnwithBrainly

7 0

3 years ago