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MAXImum [283]
2 years ago
14

The sum of the ages of Martin and his son Sherwin is 47 years. Martin's age is 2 years more than 4 times the

Mathematics
1 answer:
aliina [53]2 years ago
7 0

Answer:

In the picture above it shows how to answer the questions step by step. If there's a mistake, pls inform me.

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Every whole number is a real number . <br> True or false
grandymaker [24]
True. No imaginary number is considered "whole", all whole numbers are rational and real.
8 0
2 years ago
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A recreation center is offering special prices on its pool passes and gym memberships for the summer. On the first day of the of
s344n2d4d5 [400]

Answer:

In grade 8, students learned that some systems of linear equations have many solutions. This warm-up reminds students about this fact, while also prompting them to use what they learned in this unit to better understand what it means for a system to have infinitely many solutions.

The first equation shows two variables adding up to 3, so students choose a pair of values whose sum is 3. They notice that all pairs chosen are solutions to the system. Next, they try to find a strategy that can show that there are countless other pairs that also satisfy the constraints in the system. Monitor for these likely strategies:

Solving by graphing: The graphs of the two equations are the same line, so all the points on the line are solutions to the system.

Solving by substitution: The first equation can be rearranged to . Substituting for in the second equation gives or or . This equation is true no matter what is.

Solving by elimination: If we multiply the first equation by 4, rearrange the second equation to , and then subtract the second equation from the first, the result is . Subtracting from each side gives , which is true regardless of what or is.

Reasoning about equivalent equations: If we rearrange the second equation so that the variables are on the same side , we can see that this equation is a multiple of the first and are equivalent. This means they have the exact same solution set, which contains infinite possible pairs of and .

Identify students using different strategies and ask them to share their thinking with the class later.

Making graphing technology available gives students an opportunity to choose appropriate tools strategically (MP5).

Step-by-step explanation:

✒✒✏✂✂✏✒✏✒✂✏✂✏✒✂✒✂✂✂✏✂✒✂✂✂✒✏✏✏✒✒✏✏

7 0
3 years ago
Can somebody help me with these, i will mark you brainliest :)
Diano4ka-milaya [45]

Answer:

11 is b

Step-by-step explanation:

thats all i can do sorry

6 0
2 years ago
Read 2 more answers
For which values of P and Q does the following equation have infinitely many solutions ?
solmaris [256]

Answer:

(P, Q) = (-75, 57)

Step-by-step explanation:

The equation will have infinitely many solutions when it is a tautology.

Subtract the right side from the equation:

Px +57 -(-75x +Q) = 0

x(P+75) +(57 -Q) = 0

This will be a tautology (0=0) when ...

P+75 = 0

P = -75

and

57-Q = 0

57 = Q

_____

These values in the original equation make it ...

-75x +57 = -75x +57 . . . . . a tautology, always true

4 0
3 years ago
Please tell me the answer
kirill115 [55]

Answer:

<h2>(-∞,∞) Bottom answer</h2>

I hope this helps you with your algebra

5 0
3 years ago
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