2 years ago

X + y = 400 10x + 5y = 2750

Mathematics

2 answers:

Mumz [18]2 years ago

6 0

X = 150
Y = 250
150 + 250 = 400
10(150) + 5(250) = 2750
1500 + 1250 = 2750

Naddik [55]2 years ago

3 0

Answer:

fart

Step-by-step explanation:

You might be interested in

Solve for n. 4n + 19 + 13n = -13 + 15n

STALIN [3.7K]

ANSWER: n = -16

4n + 13n = 17n

19 + 13 = 32

15 - 17 = -2

n = -16

3 0

3 years ago

Read 2 more answers

Math question:

nignag [31]

Answer: 352

Step-by-step explanation:

3 0

2 years ago

3. Classify the number: -4

BabaBlast [244]

Answer:

Aight.

Rational, Real, Integer, Negative

7 0

2 years ago

Read 2 more answers

The resting heart rate for an adult horse should average about μ = 43 beats per minute. Let x be a random variable that represen

lara31 [8.8K]

Answer:

451.5

Step-by-step explanation:

I'm rusted on the mathematics

6 0

2 years ago

Prove the following statement.

gayaneshka [121]

Answer:

You can prove this statement as follows:

Step-by-step explanation:

An odd integer is a number of the form $2k+1$ where $k\in \mathbb{Z}$ . Consider the following cases.

Case 1. If $k$ is even we have: $(2k+1)^{2}=(2(2s)+1)^{2}=(4s+1)^{2}=16s^2+8s+1=8(2s^2+s)+1$ .

If we denote by $m=2s^2+2$ we have that $(2k+1)^{2}=8m+1$ .

Case 2. if $k$ is odd we have: $(2k+1)^{2}=(2(2s+1)+1)^{2}=(4s+3)^{2}=16s^2+24s+9=16s^{2}+24s+8+1=8(2s^{2}+3s+1)+1$ .

If we denote by $m=2s^{2}+24s+1$ we have that $(2k+1)^{2}=8m+1$

This result says that the remainder when we divide the square of any odd integer by 8 is 1.

6 0

2 years ago