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3 years ago

Tom bought a soft drink for $4.00 and 7 candy bars. He spent a total of $18.00. How

Mathematics

1 answer:

olga2289 [7]3 years ago

8 0

Answer:

Step-by-step explanation:

$18-$4=$14

$14/7=$2

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What is a valid prediction about the continuos function

Elodia [21]

Answer:

EX: f(x) ≥ 0 over the interval [-1, 1].

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3 years ago

A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. The followi

marta [7]

Answer:

Step-by-step explanation:

Since the pennies need to be kept under the pillow in order to be doubled, we're really looking for the day the girl will wake up with 5 billion pennies under her pillow.

The general formula of that geometric sequence will be: t = 1 + 2^(n-1)

We need to find the value of n when t will be over 5,000,000,000.

So, the equation becomes:

5,000,000,001 = 1 + 2^(n-1)

2^(n-1) = 5,000,000,000

log(2^(n-1)) = log(5,000,000,000)

(n-1) * log(2) = log(5,000,000,000)

n-1 = log(5,000,000,000) / log(2)

n-1 = 22.25

n = 33.25

Since it has to be complete days, and we have to reach over 5 billion, then we round it up to 34.

5 0

4 years ago

Calculate the missing terms in each proportion.

Solnce55 [7]

Answer:

1:11=11:121

5:2:1=35:14:7

1.5:1.25:2.4=6:5:9.6

Step-by-step explanation:

x/11=11/121 so x equals 1

5/2=x/14 so x equals 35

1.5/x=6/5 so x equals 1.25

1.25:2.4=5/x so x equals 9.6

5 0

3 years ago

Priya is stacking building blocks to make a tower. She takes a break when the tower is feet tall, which is of the height of the

garik1379 [7]

Complete question :

Priya is stacking building blocks to make a tower. She takes a break when the tower is 2 and 1/2 feet tall, which is 5/8 of the height of the tower she wants to build. How tall is the tower when finished

Answer:

4 feets

Step-by-step explanation:

Given that:

Height of building when she took a break = 2 1/2 feets

Let the entire height of the tower = x

2 1/2 feets = 5/8 of the tower height

2 1/2 feets = (5/8)x

Height of tower when finished ; fins the value of x

5/2 = 5x / 8

Cross multiply

5*8 = 2*5x

40 = 10x

Divide both sides by 10

40/10 = 10x/ 10

4 = x

Hence, height of tower when completed is 4 feets

5 0

3 years ago

What are the domain and range of the function f(x)= Squrt x-7+9

AnnyKZ [126]

Answer:

domain: x ≥ 7
range: f(x) ≥ 9

Step-by-step explanation:

The domain is the set of values of x for which the function is defined. Those are the values of x that make the square root argument non-negative:

x -7 ≥ 0

x ≥ 7

Since the square root cannot be negative, the sum of it and 9 cannot be less than 9. The range is ...

f(x) ≥ 9

6 0

4 years ago