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3 years ago

Given that 3x - 5y = 2Find x when y = 8

Mathematics

2 answers:

timurjin [86]3 years ago

6 0

Answer:

x = 14

Step-by-step explanation:

Given

3x - 5y = 2 ← substitute y = 8 into the equation

3x - 5(8) = 2

3x - 40 = 2 ( add 40 to both sides )

3x = 42 ( divide both sides by 3 )

x = 14

RSB [31]3 years ago

4 0

Answer:

x=14

Step-by-step explanation:

If the y=8 then plug it in the equation:

3x-5(8)=2

It will be:

3x-40=2

3x=42

x=14

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Angles of xyz are in the ratio 3:3:6. What are the measures of the angles

tankabanditka [31]

Let
x = 3a (first angle)
y = 3a (second angle)
z = 6a (third angle)

The total angle of a triangle is ALWAYS 180.
3a + 3a + 6a = 180
12a = 180
a = 15

Therefore, x = 45, y = 45, z = 90

4 0

3 years ago

What is the m∠N ? Can someone help me :)

Sauron [17]

Answer:

Step-by-step explanation:

Use the sine law:

$\dfrac{MO}{\sin(\angle N)}=\dfrac{NM}{\sin(\angle O)}$

We have:

$MO=18\\\\NM=6\\\\m\angle O=17^o\to\sin17^o\approx0.2924$

Substitute:

$\dfrac{18}{\sin(\angle N)}=\dfrac{6}{0.2924}$ <em>cross multiply</em>

$6\sin(\angle N)=(18)(0.2924)$

$6\sin(\angle N)=5.2632$ <em>divide both sides by 6</em>

$\sin(\angle N)=0.8772\to m\angle N\approx61^o$

4 0

3 years ago

What is m∠D? Enter your answer in the box.

Alex73 [517]

Answer:

D = 32

Step-by-step explanation:

A+ B + E = 180 since they form a triangle

14+ 45 + E = 180

E = 180 -14-45

E =121

E on either triangle is the same since they are vertical angles

C+D+E = 180 since they form a triangle

27+ D + 121 = 180

D = 180-121-27

D =32

3 0

3 years ago

To the nearest thousand the population of Texas was estimated to be 24,327,000 in 2008. Describe the actual population that Texa

azamat

To the nearest thousand, population is 24,327,000

that means the population could range between 24,326,500 and 24,327,499

5 0

3 years ago

Which of the two solids below are similar ?

Pachacha [2.7K]

Answer: I and II.

Step-by-step explanation:

By definition, two solids are similar if their corresponding sides are in the same ratio.

Knowing this, let's find which solids are similar:

Corresponding sides ratio of solids I and II:

$\frac{3}{2}=\frac{2}{\frac{4}{3}}=\frac{5}{\frac{10}{3}}$

$\frac{3}{2}=\frac{3}{2}=\frac{3}{2}$

Corresponding sides ratio of solids I and III:

$\frac{3}{\frac{9}{2}}=\frac{2}{3}=\frac{5}{8}$

$\frac{2}{3}=\frac{2}{3}=\frac{5}{8}$

Corresponding sides ratio of solids II and III:

$\frac{2}{\frac{9}{2}}=\frac{\frac{4}{3}}{3}}=\frac{\frac{10}{3}}{8}}$

$\frac{4}{9}=\frac{4}{9}=\frac{5}{12}$

You can observe that the solids I and II are similar.

3 0

3 years ago

Given that 3x - 5y = 2Find x when y = 8​

Given that 3x - 5y = 2Find x when y = 8