2 years ago

Use substitution to solve the linear system of equations.

Mathematics

1 answer:

Ne4ueva [31]2 years ago

6 0

Answer:

Step-by-step explanation: infinitely many solutions (please give brainliest)

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Middle school math with pozzazzi! Book C C-31 what did the football coach send in a bunch of second string players?

Tamiku [17]

Answer:

Step-by-step explanation:

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3 years ago

Can someone help me please i need to get this right

mixer [17]

Answer:

If there are 2 quarters for every 3 nickels,

then there are $45*\frac{2}{3} =30$ quarters.

If there are 2 dimes for every quarter,

then there are $30*2=60$ dimes.

If the number of pennies and nickels together are equal to the number of dimes, then there are $60-45=15$ pennies.

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2 years ago

Law of cosines.Anyone good in Trigonometry?

marin [14]

Answer:

$c=11.8\ units$

Step-by-step explanation:

we know that

The formula of law of cosines is equal to

$c^2=a^2+b^2-2(a)(b)cos(C)$

where

a, b and c are sides. C is the angle opposite side c

In this problem we have

$a=3\ units\\b=10\ units$

$C=120^o$

substitute the given values

$c^2=3^2+10^2-2(3)(10)cos(120^o)$

$c^2=109-(60)cos(120^o)$

$c^2=109-(60)(-0.5))$

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3 0

2 years ago

Write the correct order of letters to the finish line Example ABCGH

Usimov [2.4K]

ABCDEFGHIJKLMNOPQRSTUVWXYZ?

5 0

2 years ago

8a - 7b + 2a - 4b Please include the steps on how to solve it.

Troyanec [42]

Answer:

10a-11b is ur answer

Step-by-step explanation:

combine like terms

8a+2a=10a

-7b-4b=-11b

(always make sure to but in alphabetic order)

10a-11b

hope this helps

6 0

2 years ago