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2 years ago

Please help me thank you!!!

Mathematics

1 answer:

Lynna [10]2 years ago

8 0

Answer:

Step-by-step explanation:

Alll angles of a triangle = 180 degrees

36+61 = 97

180-97 = 83

It means that the other angle will be of 83 degrees.

means

4x-17 = 83

So now, we can do transposition.

Let's transpose 17.

4x-17 = 83

Transpose 17

4x = 83+17

4x = 100

Now we will transpose 4.

x = 100÷4

x = 25

Hope it helped!!!

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Ian wants to paint a wall measuring 3 metres by 7 metres.

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Step-by-step explanation:

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At a sale on winter clothing,Cody bought two pairs of gloves and four hats for $43.00. Tori bought two pairs of gloves and two h

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2 years ago

Which expression has a value of 15 when n = 7? 43 minus 5 n 3 n minus 5 6 n minus 28 19 minus StartFraction 28 Over n EndFractio

andrey2020 [161]

Answer:

$19-\dfrac{28}{n}$ is the expression with value of 15 when n = 7.

Step-by-step explanation:

To find the expression whose value is 15, substitute the value of n = 7 in each given expression.

Expression 1:

$43-5n$

Substituting the value of n,

$43-5\left(7\right)$

Simplifying,

$43-35=8$

Since the value of the expression is 8 which is not equal 15.

Hence expression $43-5n$ does not have value of 15 when n = 7.

Expression 2:

$3n-5$

Substituting the value of n,

$3\left(7\right)-5$

Simplifying,

$21-5=16$

Since the value of the expression is 16 which is not equal 15.

Hence expression $3n-5$ does not have value of 15 when n = 7.

Expression 3:

$6n-28$

Substituting the value of n,

$6\left(7\right)-28$

Simplifying,

$42-28=14$

Since the value of the expression is 14 which is not equal 15.

Hence expression $6n-28$ does not have value of 15 when n = 7.

Expression 4:

$19-\dfrac{28}{n}$

Substituting the value of n,

$19-\dfrac{28}{7}$

Simplifying,

$19-4=15$

Since the value of the expression is 15 which is equal 15.

Hence expression $19-\dfrac{28}{n}$ has the value of 15 when n = 7.

4 0

3 years ago

Read 2 more answers

Solve this equation: 110 = 9x + 5y Help please!!!❤️

Archy [21]

We can't find explicit values for $x$ and $y$ , since there is only one equation, but two variables.

The best we can do is solve for one variable with respect to the other:

Solve for $x$ :

subtract $5y$ from both sides:

$110-5y = 9x$

divide both sides by $9$ :

$\frac{110-5y}{9} = x$

Solve for $y$ :

subtract $9x$ from both sides:

$110-9x = 5y$

divide both sides by $5$ :

$\frac{110-9x}{5} = y$

5 0

2 years ago