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AnnZ [28]
3 years ago
10

Multiple Choice In Mr. Mamer's math class, there are three times as many girls as boys. The girls' mean grade on a recent quiz w

as 90, and the boys' mean grade was 86. What was the mean grade for the entire class?
F. 88

G. 44

H. 89

J. 95
Mathematics
1 answer:
Mice21 [21]3 years ago
7 0
The answer is 88 you have to add 90+86=176÷2 which equals 88
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una alberca tiene forma de prisma rectangular sus dimensiones son 12 metros de largo 6 metros de ancho y 3 metros de profundidad
kap26 [50]

Answer:

216 metros

Step-by-step explanation:

solo tienes que multiplicar todo

12x6x3 = 216 metros

8 0
3 years ago
Follow this link to view juan’s work. critique juan’s work by justifying correct solutions and by explaining any errors he made.
AlladinOne [14]

Answer:

Step-by-step explanation:

Let the exponential function given in the picture is,

f(x) = a(b)ˣ

Here, a = Initial value

b = Base value

x = Exponent

Since, the graph passes through the points (0, 1) and (1, 3)

For (0, 1),

1 = a(b)⁰

a = 1

For (1, 3),

3 = 1(b)¹

b = 3

Therefore, equation of the given function will be,

f(x) = (3)ˣ

Therefore, Initial value = 1

Base = 3

Asymptote (Horizontal) → y = 0

Vertical asymptote → None

Domain → (-∞, ∞) Or {x | x ∈ R}

Range → (0, ∞) Or {y | y > 0}

Therefore, answers given by Juan are incorrect.

5 0
3 years ago
a rectangle with a length of 9 inches and a width of 8 inches is divided in to squares of with sides of length 1 inch.One third
Mice21 [21]

Answer:

42

Step-by-step explanation:

  rectangle =  8x9 = 72

1/3 0f 72 =  24      (72-24=  48)

1/8 of 48 =6   48-6 =42

red-----24

green-----6

unpainted-----42

24+6+42+=72

6 0
3 years ago
For his reading goal this nine weeks, Jeonhee wants to read 1,000 pages. The first week he read 10 pages per day. The second wee
zalisa [80]

Answer:

955

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
A phone company offers two monthly plans. Plan A costs $11 plus an additional $0.16 for each minute of calls. Plan B costs $29 p
Andrew [12]

Answer:

The plans will cost the same when the amount you have to pay for talking for "x" minutes on Plan A is the same has what you have to pay for talking for the same number of "x" minutes when using Plan B.

 

$$ Plan A = $$ Plan B

 

To find the charge on each plan we add the base rate to the per minute call rate for each.

 

Plan A = $27 + $0.11x

Plan B = $13 + $0.15x

 

Let's drop the $ sign for now and get rid of the decimal point by multiplying by 100.

 

2700 + 11x = 1300 + 15x

 

Subtracting 11x and 1300 from both sides:

 

4x = 1400

 

x = 350 min.

 

Using this result the plans both cost $65.50 for 350 min of talk time.

Step-by-step explanation:

boom   :)

5 0
3 years ago
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