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svlad2 [7]
3 years ago
14

3x + 2y = 9 y = 4x – 1 (solve algebraically)​

Mathematics
1 answer:
postnew [5]3 years ago
8 0
3x+2y=9
3x+2(4x-1)=9
11x-2=9
+2 +2
11x=11
X=1

Y=4x-1
Y=4(1)-1
Y=3
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Please help!! Time limit!
gavmur [86]

Answer:

Step-by-step explanation:

92÷2= 46

188÷ 1/4=752

276÷ 1/6= 1656

So the third one is the answer

6 0
2 years ago
Explain why the "+ C" is not needed in the antiderivative when evaluating a definite integral.
Aliun [14]

The reason the "+ C" is not needed in the antiderivative when evaluating a definite integral is; The C's cancel each other out as desired.

<h3>How to represent Integrals?</h3>

Let us say we want to estimate the definite integral;

I = \int\limits^a_b {f'(x)} \, dx

Now, for any C, f(x) + C is an antiderivative of f′(x).

From fundamental theorem of Calculus, we can say that;

I = \int\limits^a_b {f'(x)} \, dx  = \phi(a) - \phi(b)

where Ф(x) is any antiderivative of f'(x). Thus, Ф(x) = f(x) + C would not work because the C's will cancel each other.

Read more about Integrals at; brainly.com/question/22008756

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8 0
1 year ago
Leena bought 14 yards of wire. How many inches of wire did she buy? (1 yard = 36 inches)
lawyer [7]

Answer:

504

Step-by-step explanation:

So, lets calculator this.

For each yard, there are 36 inches.

There are 14 yards.

To find the amount of inches in this 14 yards, we need to multiply 14 by 36:

14x36

=

504

So there are 504 inches of wire in 14 yards.

Answer:

<u>504</u>

Hope this helps! :)

5 0
3 years ago
Read 2 more answers
I need help fasttt with work
Vlad [161]

Answer:

-19.9 ft.

Step-by-step explanation:

6 0
3 years ago
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The senior classes at High School A and High School B planned separate trips to New York City. The senior class at High School A
Nezavi [6.7K]
Class A: 6v + 8b = 202

Class B: 12v + 16b = 284

Solve using the elimination method:
since 6v and 12v are perfect for elimination, multiply the class A equation by 2 so that the van variable cancels out: 

12v + 16b = 404
12v + 10b = 284

Then subtract the bottom equation from the top:

6b = 120
b = 20 

Now you know that each bus can hold 20 students.
Just plug this into one of the original equations to solve for vans:

6v + 8(20) = 202
6v + 160 = 202
6v = 42 
v=7 

So then you know that each van can hold 7 students. 

Check:
12 (7) + 10 (20) = 284 


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3 0
3 years ago
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