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Umnica [9.8K]
3 years ago
13

Lyla flew her radio-controlled airplane 500 feet in 20 seconds. She claims that the speed of her airplane was 25 feet per second

during the flight. What assumption must Lyla make for her claim to be true?
PLEASE HELP!!!
Mathematics
2 answers:
REY [17]3 years ago
7 0

Answer: C

Step-by-step explanation: A. The airplane flew in a circle. B. The airplane flew in a straight line. C. The airplane flew at a constant speed. D. The airplane flew faster at the end of the flight than at the beginning. yeeeeeeeeet :D

evablogger [386]3 years ago
6 0

Answer:

That her plane flew 625 feet

Step-by-step explanation:

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Choose Yes or No to tell if each pair of expressions is equivalent. 3x + 14 – x + 112 and 4x + 134 Choose... 2 + 6x and 2(3x + 1
natima [27]

Answer:

B. 2 + 6x and 2(3x + 1) Choose

D. 3x and 4(x + 1) – x – 4 Choose...

E. 5.5 + 2.1x + 3.8x – 4.1 and 1.4 + 5.9x Choose...

Step-by-step explanation:

A. 3x + 14 – x + 112 and 4x + 134 Choose...

3x + 14 - x + 112

= 2x + 126

And

4x + 134

Not equivalent

B. 2 + 6x and 2(3x + 1) Choose...

2 + 6x

And

2(3x + 1)

= 6x + 2

Yes, equivalent

C. 3(x + 1) – (1 + x) and 2x + 3 Choose...

3(x + 1) - (1 + x)

3x + 3 - 1 - x

2x + 2

And

2x + 3

No, not equivalent

D. 3x and 4(x + 1) – x – 4 Choose...

3x

And

4(x + 1) - x - 4

= 4x + 4 - x - 4

= 3x

Yes, equivalent

E. 5.5 + 2.1x + 3.8x – 4.1 and 1.4 + 5.9x Choose...

5.5 + 2.1x + 3.8x - 4.1

1.4 + 5.9x

And

1.4 + 5.9x

Yes, equivalent

4 0
3 years ago
Ayudaaaaa porfavor Convertir las unidades de medida 8 000 m = _______ km 4 000 g = _______ kg 3 000 m = ________ km 7 m = ______
jek_recluse [69]

Answer:

a) x = 8\,km, b) x = 4\,kg, c) x = 3\,km, d) x = 700\,cm, e) x = 3\,cm, f) x = 100\,mm, g) x = 7\,mm, h) x = 10000\,mL, i) x = 8\,m, j) x = 6000\,g

Step-by-step explanation:

a) 1 kilómetro equivale a 1000 metros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 8000\,m \times \frac{1\,km}{1000\,m}

x = 8\,km

b) 1 kilogramo equivale a 1000 gramos, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 4000\,g \times \frac{1\,kg}{1000\,g}

x = 4\,kg

c) 1 kilómetro equivale a 1000 metros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 3000\,m \times \frac{1\,km}{1000\,m}

x = 3\,km

d) 1 metro equivale a 100 centímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 7\,m \times \frac{100\,cm}{1\,m}

x = 700\,cm

e) 1 centímetro equivale a 10 milímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 30\,mm \times \frac{1\,cm}{10\,mm}

x = 3\,cm

f) 1 centímetro equivale a 10 milímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 10\,cm \times \frac{10\,mm}{1\,cm}

x = 100\,mm

g) 1 centímetro equivale a 10 milímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 70\,mm\times \frac{1\,cm}{10\,mm}

x = 7\,mm

h) 1 litro equivale a 1000 mililitros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 10\,L\times \frac{1000\,mL}{1\,L}

x = 10000\,mL

i) 1 metro equivale a 100 centímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 800\,cm \times \frac{1\,m}{100\,cm}

x = 8\,m

j) 1 kilogramo equivale a 1000 gramos, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:

x = 6\,kg\times \frac{1000\,g}{1\,kg}

x = 6000\,g

8 0
3 years ago
Question 27 Mike is remodeling his kitchen. The countertop he wants costs $2.80 per square foot. How much will Mike have to spen
kolezko [41]

Mike has to spend $67.20 on his remodeling project.

Explanation:

6 ft = (4 + x) ft

4+x = 6

   x = 6-4 = 2

Area 1:

S1 = 2 × (4+2)

    = 2 × 6

    = 12 ft²

Area 2:

S2 = 2 × (4+2)

     = 2 × 6

     = 12 ft²

The area of his kitchen is S1 + S2 = 12 + 12 = 24ft²

               = 24 × 2.80

               = $67.20

The image is given below for the area of the house.

<h3>What is an example of a word problem?</h3>

Word problems normally include mathematical modeling questions, in which data and facts approximately a sure machine is given and a scholar is required to increase a model. as an instance: Jane had $five.00, then spent $2.00. How tons does she have now?

Learn more about Word Problems here brainly.com/question/13818690

#SPJ2

5 0
2 years ago
Read 2 more answers
Find the value of x in the given right triangle.
Ierofanga [76]

Answer:

The value of x = 65.4°

Step-by-step explanation:

Given

hypotenuse = 12

To determine

The value of ∠x = ?

<u>Using the trigonometric ratio</u>

cos x = adjacent / hypotenuse

here:

  • Adjacent of angle ∠x = 5
  • hypotenuse  = 12

substituting adjacent = 5, hypotenuse = 12 in the formula

cos x = adjacent / hypotenuse

cos x = 5 / 12

x = arccos (5/12)

x = 65.4°

Therefore, the value of x = 65.4°

4 0
3 years ago
Read 2 more answers
Morris has 2 3/4 gallons of ice tea. He gives 3/7 of it to her friend. How many gallons of ice tea does Morris have left?
lara31 [8.8K]

Answer:

2 \frac{9}{28} gallons of ice tea is left with Morris

Step-by-step explanation:

Morris has 2 3/4 gallons of ice tea. He gives 3/7 of it to her friend.

Morris has 2 3/4 gallons of ice tea

2\frac{3}{4}= \frac{2*4+3}{4}=\frac{11}{4}

He gives 3/7 of it to her friend.

To find how many gallons of ice tea does Morris have left , we subtract 3/7 from 11/4

\frac{11}{4}- \frac{3}{7}

Make the denominators same

\frac{11*7}{4*7}- \frac{3*4}{7*4}

\frac{77}{28}- \frac{12}{28}

\frac{65}{28}

\frac{65}{28} = 2 \frac{9}{28}

7 0
3 years ago
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