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2 years ago

6

During second period,Emma completed a grammar worksheet.Of the 60 questions Emma got 90% right how many questions did Emma get r

ight

1 answer:

Alona [7]2 years ago

3 0

She got 54 questions rights.
Explanation: Multiply 60 by .9. The decimal is the percentage you need to find, example (30*.3) .3 is thirty percent.

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Can you help me find this answer

Georgia [21]

Answer:

y = 10m

Step-by-step explanation:

<u>Step 1: Rewrite</u>

y = centimeters

y = millimeters * 10

y = 10m

Answer: y = 10m

6 0

3 years ago

Which transformations are needed to change the parent cosine function to the cosine function below? On a coordinate plane, a cur

Nastasia [14]

Answer:

vertical compression of One-half, horizontal stretch to a period of 4 pi, vertical shift of 1 unit up, phase shift of Pi units left

Step-by-step explanation:

5 0

3 years ago

Delicious77 [7]

Answer:

Infinite solutions

Step-by-step explanation:

2x−7y=12 (1)

−x+3.5y=−6 (2)

(2) x = 3.5y + 6

(1) 2(3.5y+6) - 7y = 12

7y + 12 - 7y = 12

12 = 12 (a true statement)

Since the variable got eliminated and we got a true statement, the system has infinitely many solutions.

One of the solutions:

(6,0)

8 0

2 years ago

Read 2 more answers

Yu Xing paid 3.60 dollar for 2 pens after a 10 percent discount .What was the usual price of 1 pen.

notka56 [123]

Answer:

2 $

Step-by-step explanation:

let the original price be x

price after 10% discount = 3.60$

$x - \frac{10}{100} \times x = 3.60$

$\frac{100x - 10x}{100} = 3.60 \\ \frac{90x}{100} = 3.60 \\ 9x = 36 \\ x = 4$

The original price of 2 pens is 4$

original price of one pen = 4/ 2

<u>= 2 $</u>

8 0

2 years ago

In a class of 25 students, 15 of them have a driver's license. If ten students are randomly selected, what is the expected numbe

const2013 [10]

Answer:

<em>Expected number of students would have a driver's license = 6</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given data In a class of 25 students, 15 of them have a driver's license

The sample proportion

$p = \frac{x}{n} = \frac{15}{25} = 0.6$

Let 'X' be the binomial distribution

Given sample size 'n' = 10

<em>mean of the binomial distribution or expected number of students would have a driver's license</em>

μ = n p

= 10 × 0.6

= 6

<u><em>Conclusion</em></u>:-

<em>Expected number of students would have a driver's license = 6</em>

5 0

2 years ago