1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedbober [7]
3 years ago
14

15x = 5y - 5 y =3x + 1

Mathematics
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

Point Form:

(x,1+3x)

Equation Form:

x=x,y=1+3x

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

You might be interested in
QUICK! Use long dvision to find a repeated decimal equlvalency for the fraction. Include all of your work as part of your final
KIM [24]

Answer:

.8888888889

Step-by-step explanation:

caculator

6 0
3 years ago
Can someone help me with this
Tems11 [23]

Answer: 8.2

Step-by-step explanation:

As angles in a triangle add to 180 degrees,

\angle A=180^{\circ}-121^{\circ}-31^{\circ}=28^{\circ}

So, by the Law of Sines,

\frac{a}{\sin A}=\frac{b}{\sin B}\\\\a=\frac{b \sin A}{\sin B}\\\\a=\frac{9 \sin 28^{\circ}}{\sin 31^{\circ}}\\\\a \approx \boxed{8.2}

4 0
3 years ago
Help me please Will give brainlist
Vikentia [17]

Answer:

Step-by-step explanation:

These are geometric means problems. In the top one, a is the geometric mean as the height for both the smaller triangles inside the big one. Therefore,

\frac{4}{a} =\frac{a}{25\\}\\a^2=100\\a=10

The next one has the geometric mean of b, being a part of the smaller triangle on the left and the big triangle as a whole:

\frac{4}{b} =\frac{b}{29}\\b^2=116\\b=10.77

6 0
3 years ago
:
Elodia [21]

Answer:

4

Step-by-step explanation:

5.728 rounds up to 6 because it is greater than 5.50 and 2.317 rounds down to 2 since it is less than 2.5. 6 - 2 = 4.

7 0
4 years ago
Automobile mechanics conduct diagnostic tests on 150 new cars of particular make and model to determine the extent to which they
galben [10]

Answer: 0.0944

Step-by-step explanation:

Given : Sample size of cars : n= 150, sample size is greater than 30 , so we use z-test.

Number of cars tested do have faulty catalytic converters =42

Then the proportion of cars   have faulty catalytic converters : \hat{p}=\dfrac{42}{150}=0.28

Critical value of z for 99% confidence level : z_{\alpha/2}=2.576

Formula for Margin of error :

E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

E=(2.576)\sqrt{\dfrac{0.28(1-0.28)}{150}}\\\\=0.0944377199216\approx0.0944\ \text{Rounded to four decimal places}

Hence, the required margin of error = 0.0944

6 0
3 years ago
Other questions:
  • 0.5% of what number is 3
    8·1 answer
  • Kyra has a rock collection.When she puts her rocks into 2 equal piles,there are no rocks left over.When she puts her rocks into
    8·1 answer
  • 5x + 3 = 3x + 11 <br> for some reason I keep getting this wrong
    9·2 answers
  • Write and solve a real world word problem in which there are 3 tables for every 8 chairs.
    5·1 answer
  • If sec 48 = 1.4945, find csc 42
    14·1 answer
  • Two rigid transformations are used to map ABC to QRS. The first is a translation of vertex B to vertex R. What is the second tra
    12·2 answers
  • Find the value of p so that the quadratic solution x(2 x+p) + 8 = 0 has real and distinct roots
    14·1 answer
  • How to answer <br> 100x^2+60x+9
    12·1 answer
  • Find the missing probability.<br> P(A) = ?<br> P(B) = 2/5<br> P(A and B) = 6/25
    10·1 answer
  • What value of x satisfies the equation 5(x – 3) – 2(x + 1) = 4?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!