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aleksandrvk [35]
3 years ago
15

TEXAS Test Prep

Mathematics
1 answer:
geniusboy [140]3 years ago
4 0

Answer:

1/8 + 1/2 = 5/8

Step-by-step explanation:

Total number of beads = 8

Number of green beads = 4

Number of yellow beads = 1

Fraction of green beads :

Number of green / total number of bead = 4 / 8 = 1/2

Fraction of yellow beads :

Number of yellow / total number of bead = 1 / 8

Number of green or yellow bead :

1/8 + 1/2 = (1 + 4) / 8 = 5/8

You might be interested in
(1 + 2/3)*(1+2/5)*(1+2/7)*(1+2/9)
strojnjashka [21]

Answer:  11/3 or 3.6 or 3 2/3

Step-by-step explanation:

All you have to do is simplify the expression

7 0
3 years ago
Solve the system of equations Y=2x+3. Y=x^2+3x+3
Setler79 [48]

Answer:

x= -1

y= 1

Step-by-step explanation:

Set both equations equal to each other

2x+3=x^2+3x+3 then solve for x

2x=x^2+3x the 3 on either side cancel out

-x=x^2

-1=x

Then plug -1 in for one of the equations to solve for y

Y=2(-1)+3

Y=1

3 0
3 years ago
What are the solutions of −1 ≤ x − 3 < 4?
juin [17]
The solution would be x>2
8 0
3 years ago
In 2019-2020, North Carolina spent $10,632 per student. The per-pupil spending has decreased at 6% per year. If this continues,
nadezda [96]

Answer:

<em>The per-pupil spending will be approximate $8,300 in 4 years</em>

Step-by-step explanation:

<u>Exponential Model</u>

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the current quantity.

An exponential decaying function is expressed as:

C(t)=C_o\cdot(1-r)^t

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The statistics of the years 2019-2020 at North Carolina indicate initial spending of Co=10,632 per student. The decaying rate is r=6% = 0.06 per year, thus the exponential model is:

C(t)=10,632\cdot(1-0.06)^t

C(t)=10,632\cdot(0.94)^t

where t is expressed in years.

We are required to know the expected spending for t= 4 years. Substitute t=4:

C(t)=10,632\cdot(0.94)^4\approx 8,300

The per-pupil spending will be approximate $8,300 in 4 years

4 0
3 years ago
Julie deposited $500 into an account that earned 10% compound interest over 5 years. What is the account value earned after 5 ye
Rashid [163]

Answer:

$821

Step-by-step explanation:

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

Where,

A = future value

P = principal = $500

r = interest rate = 10% = 0.1

n = number of periods = 12

t = time = 5 years

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

= 500 (1 + 0.1/12)^12*5

= 500 (1 + 0.0083)^60

= 500 (1.0083)^60

= 500 (1.6420)

= 821

A = $821

5 0
3 years ago
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