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3 years ago

Please help me, thank you!

Mathematics

1 answer:

Zina [86]3 years ago

7 0

Answer:

the slope is -1.5

Step-by-step explanation:

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A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the sma

xenn [34]

Answer:

2 x minus y = negative 6 and 3 x minus y = negative 5

Step-by-step explanation:

y = 2(x+3) = 2x + 6 or 2x - y = -6

y = 5 + 3x or 3x - y = -5

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3 years ago

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If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Studentka2010 [4]

A number is :

$x$

_________________________________

Three quarters of it means :

$\frac{3}{4}x \\$

_________________________________

Decrease by 20 means :

$\frac{3}{4}x - 20 \\$

_________________________________

Equals to 82 means :

$\frac{3}{4}x - 20 = 82 \\$

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What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$\frac{3}{4}x - 20 = 82 \\$

Plus sides 20

$\frac{3}{4}x = 82 + 20 \\$

$\frac{3}{4}x = 102 \\$

Multiply sides by 4

$3x = 102 \times 4$

Divided sides by 3

$x = \frac{102 \times 4}{3} \\$

$x = \frac{102}{3} \times 4 \\$

Simplify

$x = 34 \times 4$

$x = 136$

So that number is 136 .

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And we're done.

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5 0

3 years ago

Im solving variables -4y + 7 = -10y+37

Ulleksa [173]

Answer:

Step-by-step explanation:

move the terms

collect like terms

calculate

divide both side

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3 years ago

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What is 20% of 20 ?

Mariana [72]

The answer is 4.

The easiest way to determine the value of statements like this is to turn the percentage into a decimal and then multiply.

20% * 20

.20 * 20

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4 years ago

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How do you graph the equation Y = 4x + 2 and 4x - 3y = 12?

Pachacha [2.7K]

Answer:look below

Step-by-step explanation:

To graph y= 4x +2 plot the point (0,2) on the graph because the y-intercept is 2 then use the slope: 4 to find another point. Another point would be (1,6).

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3 years ago