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3 years ago

"The product of a number and 7" :

Mathematics

1 answer:

alex41 [277]3 years ago

5 0

Answer: 7n

Step-by-step explanation

a product is the multiplication answer. so a number- n- multiplied by 7 is 7n.

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Suppose an investment of $2,300 doubles in value every decade. The function F(X)= 2300 * 2^X gives the value of the investment a

kotykmax [81]

You hit the right target!

$\Huge\color{}\checkmark$

It is 9200

Just to be sure, substitute with x = 2 in the equation.

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3 years ago

Start at 92. Create a pattern that adds 13 to each number. Stop after 5 numbers. I DO NOT GET TIS I NEED HELP!!!

Lynna [10]

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3 years ago

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Soon-Jin sent out 48 invitations, this was 4/5 of all her invitations. How many invitations will she send out in total?

stepladder [879]

If 4/5 of the total is 48, the total can be found by dividing it by 4 and multiplying it by 5:
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3 years ago

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Karla invests $300 compounded every 6 months at a rate of 10% for 3 years. At the end of three years, Karla will have $402.03 in

adell [148]

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = $300

r = 10% = 10/100 = 0.1

n = 2 because it was compounded 2 times in a year(6 months).

t = 3 years

Therefore,

A = 300(1 + 0.1/2)^2 × 3

A = 300(1 + 0.05)^6

A = 300(1.05)^6

A = $402.03

4 0

3 years ago

!!20 POINTS!! Claire filled up her car with gas before embarking on a road trip across the country. Let G represent the number o

pentagon [3]

Answer:

$G=-\frac{5}{4}t+15$

Slope = $-\frac{5}{4}$

Step-by-step explanation:

Let the equation representing the number of gallons left in the gas tank is,

G = mt + b

Where m = slope of the line

b = y-intercept of the line

Slope of the line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is,

'm' = $\frac{y_2-y_1}{x_2-x_1}$

Slope of the line passing through (8, 5) and (4, 10),

m = $\frac{10-5}{4-8}$

m = - $\frac{5}{4}$

Equation of line will be,

G = $-\frac{5}{4}t+b$

Since, point (8, 5) lies on this line,

5 = $-\frac{5}{4}(8)+b$

5 = -10 + b

b = 15

Therefore equation of the function will be,

G = $-\frac{5}{4}t+15$

Here slope of the function represents the $\frac{5}{4}$ gallons of gas is consumed to drive the car for one hour.

4 0

3 years ago