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2 years ago

QUICK does anyone know this? if so please answer i need to turn this in asap!

Mathematics

2 answers:

andrezito [222]2 years ago

6 0

Answer:

14,8,-5

Step-by-step explanation:

1. 12-{1+(-3)}

12-{1(-3)} 1-3=-2

12-(-2) -×-=+

12+2

2. 6-{1+(-3)}

6-(1-3)

6-(-2)

6+2

3. 3×6+(-3)

________

-3

18-3

______

-3

_____

-3

=-5

sdas [7]2 years ago

4 0

Answer:

10, 8, -5. Pls tell me if wrong i will retry. Im doing this mentally to be fast.

Step-by-step explanation:

A. 12 - |1 + -3 | = 12 - 2 = 10

B. 6 - -2 = 8

C. 18 -3/-3 = 15/-3 = -5

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Cellular phone service that charges per-minute will charge $70 for 270 minutes. How much would 1260 minutes cost? Round your ans

gulaghasi [49]

$70 = 270 min
x = 1260 min
Where x is the charge of phone service per 1260 min.

Cross multiply:
1260 * 70 = 270 * x
88200 = 270x
88200/270 = x
x = 326.67

The total charge of cellular phone service for 1260 min is $326.67

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2 years ago

2. Express the given statement as an algebraic expression. Sum ofa and 5 divided by 8

bezimeni [28]

Answer:

An algebraic expression for Sum of a and 5 divided by 8 is $\mathbf{\frac{a+5}{8}}$

Step-by-step explanation:

We need to express the given statement as an algebraic expression.

Sum of a and 5 divided by 8

Basically, we are given the expression in English sentence and we have to write algebraic expression.

It can be done in two steps:

Sum of a and 5 = We know that sum is denoted by + sign. So, we get (a+5)

Sum of a and 5 divided by 8 = $\frac{a+5}{8}$

So, An algebraic expression for Sum of a and 5 divided by 8 is $\mathbf{\frac{a+5}{8}}$

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3 years ago

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jasenka [17]

Answer:

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2 years ago

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koban [17]

Z: is the number

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I hope it helps you :)

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ELEN [110]

Step-by-step explanation:

20 each because it's like tgat

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