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2 years ago

When using substitution to solve this system of equations, what is the result of the first step x=6y+3

Mathematics

1 answer:

myrzilka [38]2 years ago

3 0

First step: you have to plug in 6y+3 into the equation and solve
Example: 6y+3+2y = 5

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Pages in a book are numbered from 1 to 1001. How many of these page numbers include the digit 7?

Pie

Answer:

100

Step-by-step explanation:

one digit number=7 (1 page)

two digit numbers=17,27,37,47,67,77,87,97(9)

three digit numbers=

107,117,127,137,147,157,167,177,187,197 (10)

207,217,.................................,277,287,297 (10)

307,317,..................................,377,387,397 (10)

404,..........................................477,487,497 (10)

507,...................................................................(10)

607,....................................................................(10)

707,717,727,737,747,757,767,777,787,797 (10)

807,..............................................................,897 (10)

907,..............................................................,997 (10)

total number of pages=1+9+9(10)=10+90=100

6 0

2 years ago

Read 2 more answers

Write the prime factorization of 3.

DaniilM [7]

Answer:

there is none prime factorization of 3. Since it cant be multiplied by anything to get 3 like 2 and 5 and 7

Step-by-step explanation:

5 0

3 years ago

50 POINTS Vanessa has 6 dimes and 2 pennies. Joachim has 1 dollar, 3 dimes, and 5 pennies. Jimmy has 5 dollars and 7 pennies. Th

Yakvenalex [24]

Vanessa: a dime = 10 cents = 0.10

A penny = 1 cent = 0.01

6 x 0.10 = 0.60

2 x 0.01 = 0.02

Total = 0.60 + 0.02 = 0.62

Joachim : a dollar = 1.00

3 x 0.10 = 0.30

5 x 0.01 = 0.05

Total = 1.00 + 0.30 + 0.05 = 1.35

Jimmy: total = 5.00 + 0.07 = 5.07

Total of all 3: 0.62 + 1.35 + 5.07 = $7.04

This is less than $8 so they don’t have enough.

They need: 8.00 - 7.04 = $0.96 more

3 0

2 years ago

Read 2 more answers

I need help will give 20 points

barxatty [35]

Answer:

x=136 degrees

Step-by-step explanation:

A quadrilateral inscribed in a circle has opposite angles that add up to 180 degrees. So x + 44 deg = 180 deg. We can solve this to get x = 136 deg.

I hope this solution was helpful. Happy mathing!

4 0

2 years ago

Tara has 8.7 feet of fabric. She wants to make table runners that are all 1.45 feet long. How many table runners can she make?

muminat

Answer:

6 table runners

Step-by-step explanation:

8.7 ÷ 1.45 = 6

3 0

2 years ago