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creativ13 [48]
3 years ago
15

Evaluate 9 ÷ 3[(18 − 10) − 22].

Mathematics
1 answer:
dlinn [17]3 years ago
3 0

Answer:

-42

Step-by-step explanation:

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2. The length of XZ is 28 units. If XY = 2x + 2 and YZ = 9x – 7, what are the lengths of XY and
Novosadov [1.4K]

Answer:

XY = 8 and YZ = 20

Step-by-step explanation:

If XY and YZ are on the one line, we can write

XY + YZ = 28

(2x+2) + (9x - 7) = 28

2x+2 + 9x - 7 = 28

11x - 5 = 28

11x = 33

x = 3

XY = 2x+2 = 2*3 + 2 = 8

YZ = 9x - 7 = 9*3 - 7 = 27 - 7 = 20

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How do you simply x= ln2 /4
k0ka [10]

Answer: Write the problem as a mathematical expression x= in2 over 4

Step-by-step explanation:

6 0
3 years ago
1- Find the value of the two numbers if their sum is 12 and their difference is 4. You must use an algebraic expression to solve
PilotLPTM [1.2K]
12-4=8 which means 12-8=4 which means now you have the difference of 4 and 8+4=12 which means now you have the sum of 12
3 0
2 years ago
Which situation can be represented by this equation? <br> 2,500 + 40x = 7,300-60x
koban [17]

Answer:

x= 48

Step-by-step explanation:

2500+40x+60x=7300\\40x+60x=7300-2500\\100x=7300+2500\\100x=4800\\x=4800/100\\x=48

4 0
3 years ago
Solve for x <br> x^2 - 2x - 35 = 0x
olga_2 [115]

Answer:

 x = 7

 x = -5

Step-by-step explanation:

Given

x² - 2x - 35 = 0

Consider the factors of the constant term (- 35) which sum to give the coefficient of the x- term (- 2)

The factors are - 7 and + 5, since

- 7 × 5 = - 35 and - 7 + 5 = - 2, thus

(x - 7)(x + 5) = 0

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 7 = 0 ⇒ x = 7

4 0
3 years ago
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