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pishuonlain [190]
3 years ago
14

Evaluate -5 + 2 - 7 (-12) show work

Mathematics
2 answers:
Advocard [28]3 years ago
4 0

Answer:

81

Step-by-step explanation:

posledela3 years ago
3 0

Answer:

√25

log(1/2)

log(8)

Step-by-step explanation:

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4 2/5 divided by 1 1/3
Naddik [55]

Answer:

3.3

Step-by-step explanation:

=  >  \frac{4 \frac{2}{5} }{1 \frac{1}{3} }  \\  \\  =  >  \frac{ \frac{20 + 2}{5} }{ \frac{3 + 1}{3} }  \\  \\  =  >  \frac{ \frac{22}{5} }{ \frac{4}{3} }  \\  \\  =  >  \frac{22}{5}  \times  \frac{3}{4}  \\  \\  =  >  \frac{11}{5}  \times  \frac{3}{2}  \\  \\  =  >  \frac{33}{10}  \\  \\  =  > 3.3

6 0
3 years ago
aniel is 16 years old. His age is twice his brother's age, which is represented by x. Write and solve an equation to determine t
gayaneshka [121]

Write an equation.

16=2x

x=8

Daniel's brother is 8 years old.

5 0
3 years ago
Read 2 more answers
Find the night of the parallelogram wh hen it's :area is 2.5mm squared base is 5mm
Travka [436]

Answer:

Height is 0.5

Step-by-step explanation:

height of parallelogram = area ÷ base

= 2.5 ÷ 5 = 0.5

3 0
3 years ago
Need help + explanation!! ^_^
Paha777 [63]
780, or C, is correct.  Since 9.75 is 1/80th of the actual measurement, we can set up an equation like this:

9.75 = 1/80x

Then multiply each side by 80:

780 = x

The actual building's height is 780 ft.

We can check this answer by plugging in 780 for x in the original equation:

9.75 = 1/80(780)

9.75 = 9.75

Check! <span>✓</span>
3 0
3 years ago
Joan has 294 black marbles. Joan has 42 times more black marbles than Dan. How many black marbles does Joan has?
lara [203]
Joan has 294 marbles
dan has 7 marbles
5 0
3 years ago
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