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Nezavi [6.7K]
3 years ago
13

A bike rental is $20 for a day and $3 for an hour. Caroline rented a bike for 2 days and 2 hours. Write and equation you could u

se to find how much money,M, caroline spent.
Mathematics
1 answer:
wolverine [178]3 years ago
8 0

Answer:

M = 20(2) + 3(2) = $46

Step-by-step explanation:

Here, we want to write an equation that could be used to find the amount of money spent

The rental charges $20 for a day and $3 for an hour

For 2 days, amount is 2 * 20 = $40

for 2 hours , amount is 3 * 2 = $6 hours

The amount Spent M will be;

M = 20(2) + 3(2) = $46

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Olivia ordered 24 cupcakes and a layer cake costs 16$ and the total cost of the order was 52$ what was the price of each cupcake
Tju [1.3M]

Let x be the price of a cupcake. There are 24 cupcakes so it will be 24x. Solution: 24x+16=52 24x=52-16 24x=36 Divide both sides by 24 X=1.5. The price of each cupcake is 1.5$

8 0
3 years ago
Rewrite the expression with the given base. 25^3x with a base of 5.
svp [43]
Use\ (a^n)^m=a^{nm}\\\\25^{3x}=(5^2)^{3x}=5^{2\cdot3x}=5^{6x}
6 0
3 years ago
Suppose two $20 bills, three $10 bills, one $5 bill, and seven $1 bills are placed in a bag. If you were to pull a bill at rando
Korolek [52]

Answer:

Assuming that the $1 bill was pulled at random, then the expected value of the amount chosen is \frac{7}{13}.

Step-by-step explanation:

From the given question, the bag contains;

$1 bill = 7

$5 bill = 1

$10 bill = 3

$20 bill = 2

Total number of bills in the bag = 13

Pulling a bill at random, the bills would have an expected value as follows:

For $1 bill, the expected value = \frac{7}{13}

For $5 bill, expected value = \frac{1}{13}

For $10 bill, expected value = \frac{3}{13}

For $20 bill, the expected value = \frac{2}{13}

Assuming that the $1 bill was pulled at random, then the expected value of the amount chosen is \frac{7}{13}.

6 0
3 years ago
The quantity is called the pooled variance estimate of the common variance of two unknown but equal population variances. It is
lozanna [386]

Answer:

sample variances

Step-by-step explanation:

The pooled variance method is used to estimate the variance of several different population with different means, but are assume to have the same variance.

The weights represent the sample variances.

So the correct answer is

sample variances

5 0
3 years ago
If f(x)=x^2−3 and g(x)=4x+3, then f(g(2))= _____.<br> If f(x)=x^2+1, find f(f(2))=_____.
vichka [17]

Answer:

f(g(2)=118

f(f(2)=26

3 0
3 years ago
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