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ExtremeBDS [4]
2 years ago
11

Help will mark Brainliest​

Mathematics
1 answer:
Aleksandr [31]2 years ago
5 0

Answer:

The third box model

Step-by-step explanation:

Since she earns 162 from babysitting and got a total of $810, it would eman that (x represents the amount of money she got from mowing lawns) 810-162=x

x=648 so the third box model is correct

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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
3 years ago
Is the fraction 45/61 in the simplest form? Explain.​
Leona [35]

Answer: i think it is.

you cant divide both numbers by the same number

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A contractor purchases 5 dozen pairs of padded work gloves for ​$67.20. She incorrectly calculates the unit price as ​$13.44 per
pickupchik [31]

Answer:

13.44

Step-by-step explanation:

she is right...........

7 0
3 years ago
Read 2 more answers
Five times the sum of a number and 27 is greater than or equal to six times the sum of that num
stepladder [879]

Question:

Five times the sum of a number and 27 is greater than or equal to six times the sum of that number and 26.

What is the solution set of this problem?

Answer:

x \leq -21

Step-by-step explanation:

Given

<em>Represent the number with x</em>

So:

5 * (x + 27) \geq 6 * (x + 26)

Required

Determine the solution set

5 * (x + 27) \geq 6 * (x + 26)

Open Both Brackets

5 * x + 5 * 27 \geq 6 *x + 6 * 26

5x + 135 \geq 6x + 156

Collect Like Terms

5x - 6x \geq 156-135

- x \geq 21

Multiply both sides by -1

x \leq -21

Hence, the solution set is x \leq -21

7 0
3 years ago
Round 9.17302 to the nearest thousandths tenths and nearest unit
statuscvo [17]

Answer:

170000

Step-by-step explanation:

17000

4 0
3 years ago
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