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Vitek1552 [10]
3 years ago
4

20POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Temka [501]3 years ago
8 0

Step-by-step explanation:

The value of A-B would be: 2n-(-5)

Alex787 [66]3 years ago
5 0

Answer: 9 - 8n

A - B = -3n + 2 - (5n - 7) = -3n - 5n + 2 + 7 = 9 - 8n

Step-by-step explanation:

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What is twice 2^30? write using exponents
8090 [49]
2(2^{30})=2^1*2^{30}=2^{1+30}=2^{31}
7 0
3 years ago
A taxi cab charges $0.55 per mile in addition to a $1.75 flat rate fee. Susie has $10 to spend on a taxi cab ride. The taxi driv
d1i1m1o1n [39]

Let y equal to the total fare and x is the mile of taxi ride. So the equation is

Y = 0.55x + 1.75

Since Susie has $10 to spend for a taxi cab, so he can have

10 = 0.55x + 1.75

X = 15 miles of taxi ride

So the system of inequality is

10 < 0.55x + 1.75

<span>X > 2</span>

3 0
4 years ago
Find the slope of the line passing through the points (-4,7) and (2,-8)
mixas84 [53]

Answer:

m=\frac{-5}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-4, 7)

Point (2, -8)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{-8-7}{2+4}
  2. Subtract/Add:               m=\frac{-15}{6}
  3. Simplify:                        m=\frac{-5}{2}
6 0
3 years ago
leroy spent $2.50 on a kazoo. he spent $0.25 less than that on a yoyo. he bought a slice of pizza for $1.50, and a juice for hal
lakkis [162]

The answer is to your question is 6.5

5 0
4 years ago
Read 2 more answers
Please find answer. ​
musickatia [10]

Answer:

(1,-2) is the final answer of finding the midpoint of the line joining points

Step-by-step explanation:

7 0
3 years ago
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