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3 years ago

Try This question solve using substitution I’ll give you brainliest

Mathematics

2 answers:

Semmy [17]3 years ago

4 0

Answer:

(-4, -3)

Step-by-step explanation:

First divide the second equation by -1. It becomes y = -3x - 15.

Then, substitute this equation into the y of the first equation.

x + 2(-3x - 15) = -10

x - 6x - 30 = -10

-5x = 20

x = -4

Then substitute the x value into the equation x + 2y = -10

-4 + 2y = -10

2y = -6

y = -3

Drupady [299]3 years ago

4 0

Answer: (-4,-3)

Step-by-step explanation:

(-4)+2*(-3)=-10

-4-6=-10

-10=-10 True

-(-3)=3*(-4)+15

3=-12+15

3=3 True

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3 years ago

(Please help? I'm getting really confused on these...) Kevin wants to make a mixture that is 50% lemon juice and 50% lime juice.

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4 years ago

The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day 333 people enter the park, the

liberstina [14]

Answer:

188 children and 145 adults were admitted in the park.

Step-by-step explanation:

Given:

The admission fee at an amusement park is $1.50 for children and $4 for adults.

Total $862 collected on a certain day when 333 people enter the park.

Now, to find the children and adults admitted in the park.

Let the number of children admitted be $x.$

And the the number of adults admitted be $y.$

So, the total people enter the park:

$x+y=333\\\\x=333-y\ \ \ ...(1)$

Thus, the total amount collected of the admission fee:

$1.50(x)+4(y)=862\\\\$

Substituting the value of $x$ from equation (1):

$1.50(333-y)+4(y)=862\\\\499.50-1.50y+4y=862\\\\499.50+2.50y=862\\\\Subtracting\ both\ sides\ by\ 499.50\ we\ get:\\\\2.50y=362.50\\\\Dividing\ both\ sides\ by\ 2.50\ we\ get:\\\\y=145.$

Thus, the number of adults = 145.

Now, to get the number of children by substituting the value of $y$ in equation (1) we get:

$x=333-y\\\\x=333-145\\\\x=188.$

Hence, the number of children = 188.

Therefore, 188 children and 145 adults were admitted in the park.

4 0

4 years ago

PLEASE HURRY!!!!

Pavel [41]

Answer:

Step-by-step explanation:

You are going to roll two dice.

If you roll one die, then there are 6 possible outcomes: $1, 2, 3, 4, 5, 6$

If you roll two dice, then there are $6\times 6=36$ possible outcomes:

$\begin{array}{cccccc}1-1&1-2&1-3&1-4&1-5&1-6\\ \\2-1&2-2&2-3&2-4&2-5&2-6\\ \\3-1&3-2&3-3&3-4&3-5&3-6\\ \\4-1&4-2&4-3&4-4&4-5&4-6\\ \\5-1&5-2&5-3&5-4&5-5&5-6\\ \\6-1&6-2&6-3&6-4&6-5&6-6\end{array}$

Here the first number is the number rolled on the first die, the second number is the number rolled on the second die.

5 0

3 years ago

Read 2 more answers

The question is what is 4p - 9

OlgaM077 [116]

Answer:

4xp-9

Step-by-step explanation:

4 0

2 years ago