2 years ago

When using substitution to solve this system of equations

Mathematics

1 answer:

dlinn [17]2 years ago

3 0

Hello, find the work out in the attached image
X = 4.5
Y = -1

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s2008m [1.1K]

Answer: 29.2cm

Step-by-step explanation: perimeter of parallelogram; 2(a + b) where a = base, b = altitude

a = 8cm

b = 6.6cm

Perimeter = 2(8 + 6.6) = 2(14.6)

Perimeter = 29.2cm

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3 years ago

There are 9 students in a class: 7 boys and 2 girls.

Crank

Answer: 9/7

Step-by-step explanation:

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3 years ago

A salesperson's daily earnings include $115 per day plus commission equal to x percent (in decimal form) of his daily sales.

bearhunter [10]

Answer:

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Step-by-step explanation:

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3 years ago

The area of a triangle is 21ft². If the height of the triangle is 7ft, how long is the base of the triangle? Please give your an

tamaranim1 [39]

Answer:

The answer is b = 6

Step-by-step explanation:

Area of a triangle= 1/2 × b × h

A = 21, h = 7, b = ?

21 = 1/2 × b × 7 (multiplying through)

21 = 7b/2

Cross multiply

2 × 21 = 7b

42 = 7b

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b = 6

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3 years ago

Read 2 more answers

Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an e

Natasha2012 [34]

Answer:

250=70x+50

Step-by-step explanation:

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2 years ago