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Lisa [10]
3 years ago
10

How to solve this problem?

Mathematics
1 answer:
cluponka [151]3 years ago
7 0
have you tried 42 because it's a 90 degree triangle and 30+18+42 equals 90
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An engine uses 2.25 gallons of gas per hour. How many gallons will it use in 3.2 hours?
love history [14]

Answer:

7.2 gallons

Step-by-step explanation:

2.25 x 3.2 = 7.2

3 0
3 years ago
Read 2 more answers
which of the following is not a way to represent the solution of the inequality 8x − (5x 4) greater than or equal to −31? a. x g
IgorLugansk [536]
8x - (5x + 4) ≥ -31

8x -5x - 4 ≥ -31

3x ≥ -31 + 4

3x ≥ -27

x ≥ - 9

Answer: a numbe line with a circle on - 9 and shading to the left.

Because that drawing represents the number that are less or equel than -9 and the answer is the numbers greater or equal than -9.
7 0
3 years ago
Seven times a number is equal to 9 more than 4 times the number. find the number
Yanka [14]
Represent 'a number' by x
7 times x equals 9 more than 4 times x
7 times x=9+4 times x
7x=9+4x
subtract 4x from both sides
3x=9
divide 3
x=3

the number is 3
5 0
3 years ago
Write a scenario that could be represented by this equation: 3/4x = 12
Aneli [31]

Answer:

x=1 or x=16

Step-by-step explanation:

3/4x = 12      or        0.75x = 12

3/4x/3/4 = 12/3/4     or     0.75x/0.75 = 12/0.75

x=12/1 / 3/4

x= 4/4

x = 1                           or       x = 16

8 0
3 years ago
Find the product. Hint: Box<br> (x2+3x-5) (2x- 4)
denpristay [2]

Answer:

the answer is 10x^2-30x+20

Step-by-step explanation:

you have to distribute the numbers and multiply then add the matching variables.

4 0
3 years ago
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