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3 years ago

Todd is 3 years older than his brother Jack. If Jack is x years old and Todd is y years

Mathematics

2 answers:

True [87]3 years ago

8 0

Answer:

Todd is 31years old.

Step-by-step explanation:

$x = 28 \\ y = \\ 28 + 3 = 31$

o-na [289]3 years ago

4 0

The answer to this would be 25.

Explanation:If Todd is three years older than jack you will have to subtract the three from that 28 to get your answer.

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5 7/8 + 11/4<br> show me how to solve

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let's firstly convert the mixed fractions to improper fractions and then add, bearing in mind that the LCD from 8 and 4 is simply 8.

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3 years ago

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3 years ago

Consider the equation

muminat

Answer:

A. $a=10\\ \\b\neq -8$

B. $a=10\\ \\b= -8$

Step-by-step explanation:

Consider the equation

$2(5x-4) = ax + b$

A. This equation has no solutions when the coefficients at x are the same and the free coefficients are not the same.

First, use distributive property:

$2(5x-4)=2\cdot 5x-2\cdot 4=10x-8$

So, the equation is

$10x-8=ax+b$

This equation has no solutions when

$a=10\\ \\b\neq -8$

B. The equation has infinitely many solutions when the coefficients at x are the same and the free coefficients are the same too.

So, the equation

$10x-8=ax+b$

has infinitely many solutions when

$a=10\\ \\b= -8$

In other cases, the equation has a unique solution

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3 years ago

What is the value ofcos pie value

Hitman42 [59]

Cos(pi) = -1

You should have this memorized along with other values such as
sin(0) = 0
cos(0) = 1
sin(pi/2) = 1
cos(pi/2) = 0
sin(pi) = 0
cos(pi) = -1
sin(3pi/2) = -1
cos(3pi/2) = 0

and remember that tan = sin/cos

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2 years ago

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Nezavi [6.7K]

Answer:

Step-by-step explanation:

given

$\frac{s + ( - 7)}{ - 1}$