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storchak [24]
3 years ago
13

Simplify 7(x - 2) - 4x + 9. O A. 3x+7 O B. 3x - 5 O C. -11X- 11 D. -21 x + 49

Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

b. 3x-5

7(x-2)-4x+9

7x-14-4x+9

(7x-4x)(-14+9)

3x-5

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Clay weighs 9 times as much as his baby sister clay weighs 63 pounds how much doea hiw baby sister weigh in ounces
Mrrafil [7]

Answer:

112 ounces

Step-by-step explanation:

Clay weighs 9 times as much as his baby sister .

Clay weighs 63 pounds.

His baby sister weigh 63/9.

His baby sister weighs 7 pounds.

But to be converted to ounce.

1 pound = 16 ounces

7 pounds = 7*16 ounces

7 pounds = 112 ounces

5 0
3 years ago
Me.Durham is contemplating which chauffeured car service to the airport. The first costs $30 up front and $3 per kilometer. The
Semmy [17]

Answer: 45 dollars and it was a distance of 5 kilometers

Step-by-step explanation: What i did was start with 30, then keep adding 3 till i got the a multiple of 5.

30 + 3 = 33

33 + 3 = 36

36 + 3 = 39

39 + 3 = 42

42 + 3 = 45

So already i know that it is 5 kilometers, because i added 3 to 30 five times.

No i will do that with the second company

20 + 5 = 25

25 + 5 = 30

30 + 5 = 35

35 + 5 =  40

40 + 5 = 45

That is also 5 kilometers, because i added 5 to 20 five times. I also know they are the same price, because they both added to 45 dollars.

Thats how i solved it.

I really hope that helps!

8 0
3 years ago
The measures of three line segments are given in each set.
kolezko [41]

Answer:

second option: 32.8 m, 48.2 m, 81.1 m  

Step-by-step explanation:

20.2 m + 20.4 m = 40.6 m.  which is bigger than 20.6 m. so yes  

32.8 m + 48.2 m = 81 m.  which is smaller than 81.1 m. so no  

12.8 m + 25.7 m = 38.5 m. which is bigger than 35.9 m. so yes  

35.6 m + 49.9 m = 85.5 m. which is bigger than 83.2 m. so yes

6 0
3 years ago
Find the value of x. A)21 B)27 C)31 D)34
wariber [46]

Answer:

C

Step-by-step explanation:

BC its backwards den the 1+3x

8 0
3 years ago
Read 2 more answers
Using a compass, construct an accurate copy of triangle DEF. Check that EF = 4.6 cm. ​
MaRussiya [10]

Step-by-step explanation:

construct 90° then measure 4.6 cm and draw a line from F to D

5 0
2 years ago
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