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3 years ago

In Mrs.coopers class 12 of the 21 students completed their essay. What percentage completed their essay?

Mathematics

1 answer:

Fofino [41]3 years ago

7 0

Answer:

57.14

Step-by-step explanation:

12/21 = ?/100

12 time 100=1200

1200 divided by 21 = 57.14

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zaharov [31]

Angle 2 and angle 4 are vertical angles which makes them congruent

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2 years ago

Stella can type 150 words in 5 minutes. What is her rate per minute?

enot [183]

Answer: Stellas rate per minute is 30 words per minute

Step-by-step explanation:

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3 years ago

Help me with a. b. c. I need help

hammer [34]

Answer:

a) Perimeter = 20.5 Inches

Area is 15 Sq Inches

b) Perimeter is 61.4 Cms

Area is 210 Sq cm

c) Perimeter is 22 yards

Area is 21 Sq Yards

Step-by-step explanation:

a) Perimeter = sum of all the sides

= 8+7.5+5

=20.5

Perimeter = 20.5 Inches

Area of Triangle = $\frac{1}{2} \times height \times Base$

Base = 7.5 In

Height = 4 In

$A = \frac{1}{2} \times 4 \times 7.5$

$A = 2 \times 7.5$

$A = 15$

Hence Area is 15 Sq Inches

b) Perimeter = Sum of all the sides

P=13+23+13.4+12

P=61.4

Perimeter is 61.4 Cms

Area of trapezium = $\frac{1}{2} \times height \times (sum \ of \ parallel \ sides)$

$A= \frac{1}{2} \times 12 \times (12+23)$

$A= 6 \times 25$

$A=210$

Area is 210 Sq cm

c) Perimeter = Sum of all the sides

P = 7+4+7+4 ( as Opposite sides are equal in a parallelogram

P = 22

Perimeter is 22 yards

Area of a parallelogram = $base \times height$

$A= 7 \times 3$

$A = 21$

Area is 21 Sq Yards

3 0

3 years ago

Jeff bought a 5-gallon bucket of paint. He used 1.25 gallons to paint his bedroom, then he used two-thirds of the remaining pain

Rainbow [258]

Answer:

2.5 gallons

Step-by-step explanation:

5-1.25=3.75

3.75/3=1.25

1.25*2=2.50

4 0

3 years ago

A system of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the other equation?

postnew [5]

Answer:

D: 2y = 8x - 10

Step-by-step explanation:

A: y = 4x + 5. This has a slope of -4 Yes it could work.

B: y = 4x - 5. No It does not work

C: 2y = 8x - 10. The slope is 8/2 = 4. So No it could not work.

<u>D: -2y = 8x - 10. The slope is 8/-2 = -4. Yes This Does work! :)</u>

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3 years ago