2 years ago

Solve the system of linear equations by substitution.

Mathematics

2 answers:

Artemon [7]2 years ago

5 0

Answer:

x=7, and y=3 is the answer..

Kisachek [45]2 years ago

3 0

The solution is (x = 7 y = 3)

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(05.02 LC)

Anvisha [2.4K]

siny=s/8
tany=s/t

$\\ \tt\longmapsto cosy=\dfrac{siny}{tany}$

$\\ \tt\longmapsto cosy=\dfrac{s/8}{s/t}$

$\\ \tt\longmapsto cosy=8/t$

Secy=1/cosy=t/8

7 0

2 years ago

What is the risk of going into a group of more than 20 or more people at this time from coronavirus?

olga55 [171]

Answer:

Even if a person doesn't show symptoms, they can still have it.

Step-by-step explanation:

That's the problem.

Even if you think everyone isn't sick, they very well could be, and because there is no vaccine and it spreads so quickly, there's a chance that all the people in that group could get it.

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3 years ago

Read 2 more answers

a store has 800 T-shirts if 40 of the t-shirts are a size small what percent of the t-shirts are small

kicyunya [14]

5 percent of the shirts are small

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3 years ago

Four more than half of the students in Bryan’s homeroom have tickets to attend the school’s musical. 20 students have tickets. S

vlabodo [156]

Answer:

<h2>The option B and D are the equations.</h2>

Step-by-step explanation:

Let, the total number of students are x.

The number of students having the ticket is $4 + \frac{x}{2}$ .

It is given that the number is 20.

Hence, $4 + \frac{x}{2} = 20\\4 = 20 - \frac{x}{2}$ .

Option B is the equation.

Option D is also the same.

The difference is just, the variable is wriiten in the other side.

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3 years ago

A bicycle wheel has a radius of 13 inches. What is the distance the bicycle will travel after 30 revolutions of the wheel? Use 3

SpyIntel [72]

Radius = 13 inches

Circumference of wheel = 1 revolution
2πr = 2 x 3.14 x 13 = 81.64 inches

1 revolution = 81.64 inches
30 revolutions = 2449.2inches

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3 years ago