2 years ago

How many snakeman and red crows books were sold altogether

Mathematics

2 answers:

Tju [1.3M]2 years ago

8 0

Hi! Could you please send a picture of the full problem? Thanks!

Marrrta [24]2 years ago

7 0

Answer:

Step-by-step explanation:

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1) 5x-2y=4. 2) 3x-5y=13 x-2y=5<br>3x+y=9

Natali [406]

$\left\{\begin{array}{ccc}5x-2y=4\\3x+y=9&/\cdot2\end{array}\right\\+\left\{\begin{array}{ccc}5x-2y=4\\6x+2y=18\end{array}\right\\----------\\.\ \ \ \ \ 11x=22\ \ \ \ /:11\\.\ \ \ \ \ \ \ x=2\\\\3\cdot2+y=9\\6+y=9\\y=9-6\\y=3\\\\Answer:x=2;\ y=3$

$\left\{\begin{array}{ccc}3x-5y=13\\x-2y=5\end{array}\right\\\left\{\begin{array}{ccc}3x-5y=13\\x=2y+5\end{array}\right\\\\substitute:\\\\3(2y+5)-5y=13\\6y+15-5y=13\\y=13-15\\y=-2\\\\x=2\cdot(-2)+5=-4+5=1\\\\Answer:x=1;\ y=-2.$

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2 years ago

hellllpp, with both number 1 and 2, first one to answer gets brainliest, be sure of your answer please!

Fed [463]

Answer:pretty sure 1 is 23 and 2 is 211200

Step-by-step explanation:

1. 92/4 is 23

2. Just used a calculator on

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2 years ago

There are 3 boys to every 5 girls in mrs. kennedy's class. if there are 40 students in the class, how many of those students are

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