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Maurinko [17]
3 years ago
8

ForFind The average speed when a car travels130 miles in 2 12 hours? ​

Mathematics
1 answer:
Schach [20]3 years ago
3 0

Answer:

Average speed=52 miles per hour

Step-by-step explanation:

The expression for calculating the average speed is as follows;

S=D/T

where;

S=average speed

D=distance traveled

T=time taken

In our case;

S=unknown

D=130 miles

T=2 1/2 hours=2.5 hours

replacing;

Average speed=130/2.5=52 miles per hour

Average speed=52 miles per hour

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Suzette deposited $800 into a bank account earning simple interest of 2.5% each year. After 5 years, how much interest had her a
Blababa [14]

Answer:

\boxed {\boxed {\sf \$ 100.00}}

Step-by-step explanation:

The formula for simple interest is

I=prt

where <em>p</em> is the principal, <em>r </em>is the rate, and <em>t</em> is the time.

The principal, or initial amount is $800 and the time is 5 years The interest rate is 2.5%, but we must convert to a decimal.

Divide by 100 or move the decimal place two spots to the left.

  • 2.5/100=0.025       or          2.5 ⇒  0.25 ⇒ 0.025

Substitute the known values into the formula.

p= 800 \\r= 0.025 \\t= 5

I= (800)(0.025)(5)

Multiply.

I=20(5)\\I=100

After 5 years, Suzette's account has earned $100.00

8 0
2 years ago
Which of the following is equivalent to the equation 2(x-3)=5(x+1)?
Oliga [24]
What are the following?
7 0
3 years ago
A woman 38 years old has a daughter 14 years old. How many years ago was the woman 8 times older than the daughter?
Veronika [31]

Answer:

112 years ago

Step-by-step explanation:

38 => 14 yrs

DIfference: 24 yrs

n=8(14)

n=112

Therefore, 112 years ago

4 0
3 years ago
Mona had $20.00. She bought one loaf of bread for $2.25, a gallon of milk for $4.39, and a carton of eggs for $1.19. How much ch
LenaWriter [7]

Answer:

She should get $12.17 in change.

Step-by-step explanation:

20- 2.25 = 17.75

17.75 - 4.39 = 13.46

13.46 - 1.19 = 12.17

HGD

-ghost

7 0
2 years ago
Read 2 more answers
Which graph shows y &lt; x² +1?<br> O<br> 4) Intro<br> •
Ket [755]

The graph at option 1 shows the given inequality y < x² + 1. The domain and range of the given inequality is {x: x ∈ (-∞, ∞)} and {y: y ∈ [1, ∞)}.

<h3>How to graph an inequality?</h3>

The steps to graph an inequality equation are:

  • Solve for the variable y in the given equation
  • Graph the boundary line for the inequality
  • Shade the region that satisfies the inequality.

<h3>Calculation:</h3>

The given inequality is y < x² + 1

Finding points to graph the boundary line by taking y = x² + 1:

When x = -2,

y = (-2)² + 1 = 4 + 1 = 5

⇒ (-2, 5)

When x = -1,

y = (-1)² + 1 = 2

⇒ (-1, 2)

When x = 0,

y = (0)² + 1 = 1

⇒ (0, 1)

When x = 1,

y = (1)² + 1 = 2

⇒ (1, 2)

When x = 2,

y = (2)² + 1 = 5

⇒ (2, 5)

Plotting these points in the graph forms an upward-facing parabola.

So, all the points above the vertex of the parabola satisfy the given inequality. Thus, that part is shaded.

From this, the graph at option 1 is the required graph for the inequality y < x² + 1. The boundary line is dashed since the inequality symbol is " < ".

Learn more about graphing inequalities here:

brainly.com/question/371134

#SPJ1

5 0
2 years ago
Read 2 more answers
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