All categories

2 years ago

A student scored 81 and 93 on her first two quizzes. Write and solve a compound inequality to

1 answer:

6 0

To have an average in between 85 and 90 he has to have a total in-between 255 and 270.her current total is 174 so her third score must be 81≤x≤96

I hope this helps.

You might be interested in

How to find BE and BH

ohaa [14]

Use the Pythagoras Theorem in the corresponding right angled triangles.

5 0

3 years ago

Read 2 more answers

The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 22

marin [14]

Answer: 4.27% of adults in the USA have stage 2 high blood pressure.

Step-by-step explanation:

Let x be a random variable that denotes a person with high blood pressure .

Given: Average blood pressure: $\mu=122$

Standard deviation: $\sigma=22$

Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.

The probability that an adult in the USA have stage 2 high blood pressure:

$P(x\geq160)=P(\dfrac{x-\mu}{\sigma}}\geq\dfrac{160-122}{22})\\\\=P(z\geq1.72)\ \ \ [z=\dfrac{x-\mu}{\sigma}]\\\\=1-P(z$

Hence, 4.27% of adults in the USA have stage 2 high blood pressure.

6 0

2 years ago

100 stickers are evenly divided between 16 children how many stickers will be left over at the end

puteri [66]

Answer:

Step-by-step explanation:

First, we can know our multiplication charts and know that 16 x 6 = 96

96 is the closest we can get to 100 while still having a remainder, which is 4

4 is the remainder, and is the amount left over.

8 0

3 years ago

9 / 3/4 into a improper fraction

sleet_krkn [62]

Answer:

39/4

Step-by-step explanation:

Step 1 - Setup

First, we set up the mixed number 9 3/4 with different colors, so it is easy to follow along:

Step 2 - Multiply

Next, we multiply the whole number by the denominator.

9 x 4 = 36

Step 3 - Add Numerator

Then, we add the numerator to the answer we got in Step 2.

36 + 3 = 39

Step 4 - Solution

Finally, to get the solution, we keep the original denominator and make the numerator the answer from Step 3. Thus, 9 3/4 as an improper fraction is:

5 0

3 years ago

Read 2 more answers

PLEASE HELP I HAVE AN F IN MATH I HAVE NO IDEA HOW TO DO THIS!!

Galina-37 [17]

Answer:

1. C=10.6

2. C=11.2

4. C=23.4

5. C=38.4

Step-by-step explanation:

You can find the answer to these by doing the Pythagorean theorem.

a^2 + b^2 = c^2

7 0

3 years ago