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Inga [223]
3 years ago
14

Find the value of x. *

Mathematics
1 answer:
Ludmilka [50]3 years ago
6 0

Answer:

13x + 7 + 4x + 15 = 90

17x + 22 = 90

17x = 68

x = 4

4(4) + 15= 16 + 15= 31

13(4) + 7 = 52 + 7 = 59

Step-by-step explanation:

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~khan academy 7th grade
pickupchik [31]

Question:

Which of the following expressions represents the distance between 1.7 and −1/2 on a number line?

Choose 1 answer: 

A.\ |1.7 - 1/2|

B.\ |1.7 -(-1/2)|

C. None of the above

Answer:

B.\ |1.7 -(-1/2)|

Step-by-step explanation:

Given

Numbers: 1.7 and -1/2

Required

Determine the distance

To calculate the distance, we start by calculating the difference between the given numbers;

Difference = 1.7 - (-1/2)

Then, we calculate the distance;

<em>In this case, the distance is meant to be positive; So, we'll introduce the symbol for absolute value;</em>

Hence,

Distance = |Difference|

Substitute 1.7 - (-1/2) for Difference;

Distance = |1.7 - (-1/2)|

<em>Hence, the correct option is B</em>

4 0
3 years ago
Read 2 more answers
Here please help!!! I will really appreciate it! Thanks for helping...
BlackZzzverrR [31]

Answer:

Step-by-step explanation:

6 0
3 years ago
9n - 8d<br> (n = 3 and d = 2
leva [86]

Answer:

11

Step-by-step explanation:

9(3)-8(2)

27-16

11

3 0
2 years ago
Someone help me plssssss
zlopas [31]

Answer:

(3,-4)

Step-by-step explanation:

3 0
3 years ago
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The incomplete table above summarizes the number of left-handed students and right-handed students by gender for the eighth grad
creativ13 [48]

Answer:

The answer is A

Step-by-step explanation:

x+y=18

5x+9y=122

When you solve this system of equations, you get x=10 and y=8. Thus, 5*10, or 50, of the 122 right-handed students are female. Therefore, the probability that a right-handed student selected at random is female is

50/122

which to the nearest thousandth is 0.410.

6 0
2 years ago
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