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AfilCa [17]
3 years ago
7

Read the photo and please answer!!

Mathematics
2 answers:
OverLord2011 [107]3 years ago
8 0

Answer:

It will be 3 + 3x= 45 because 3 is how much she already know and 3 with the x is how much she will learn. x=15 because 3 × 15 equals 45so that's how many weeks. pls make me brainliest thank you!:) btw the other person not right!!

Readme [11.4K]3 years ago
5 0

Answer:

<em> 3 + 3x = 45 ; x = 14 </em>

Step-by-step explanation:

45 = 3x + 3 ⇒ <em>x = 14</em>

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Solve the application problem. find the perimeter of a ruler that measures 6 inches by 5656 inch.
AleksAgata [21]
The perimeter of a ruler that measures 6 in. by 5656 in. is 11,324 in. 

Explanation: 
To find the perimeter<span> of a rectangle or square you have to add the lengths of all the four sides.</span>
5 0
3 years ago
Factor 70q+60. Write your answer as a product with a whole number greater than 1.
faltersainse [42]

Answer:

10(7q + 6)

Step-by-step explanation:

  1. Find the GCF of 70 and 60: 10
  2. Divide each number by 10 (steps shown below)
  3. 70q ÷ 10 = 7q
  4. 60 ÷ 10 = 6
  5. Re-write the expression with 10: 10(7q + 6)

I hope this helps!

7 0
3 years ago
Consider the line y = 2x–4.
choli [55]

Parallel slope = 2

This is because the original line has slope 2. Parallel lines have equal slopes.

--------------------------

Perpendicular slope = -1/2

The original slope 2 or 2/1 turns into -1/2 after flipping the fraction and the sign. Note the original slope and perpendicular slope multiply to -1. This is true for any pair of perpendicular lines where neither line is vertical.

8 0
3 years ago
Read 2 more answers
Americans receive an average of 20 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with
soldier1979 [14.2K]

The distribution of X is X ~ N (20 , 6) and the probability that this American will receive no more than 24 Christmas cards this year is 0.7486.

<h3>Probability</h3>

a. Distribution

X ~ N (20 , 6)

b. P(x ≤24)

= P[(x - μ ) / σ  (24 - 20) / 6]

= P(z  ≤0.67)

=  0.74857

=0.7486

Hence:

Probability = 0.7486

c. P(21 < x < 26)

= P[(21 - 26)/ 6) < (x - μ  ) / σ   < (24 - 20) / 6) ]

= P(-0.83 < z < 0.67)

= P(z < 0.67) - P(z < -0.)

=  0.74857- 0.2033

= 0.54527

Hence:

Probability =0.54527

d. Using standard normal table ,

P(Z < z) = 66%

P(Z < 0.50) = 0.66

z = 0.50

Using z-score formula,

x = z×  σ +  μ

x = 0.50 × 6 + 20 = 23

23 Christmas cards

Therefore the distribution of X is X ~ N (20 , 6) and the probability that this American will receive no more than 24 Christmas cards this year is 0.7486.

Learn more about probability here:brainly.com/question/24756209

#SPJ1

8 0
2 years ago
List or Inequality <br><br> The height of students in a school.
Lady_Fox [76]

Answer:

inequality

Step-by-step explanation:

because we are talking about gender and social class. hope it helps

6 0
3 years ago
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