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creativ13 [48]
3 years ago
9

Solve and show working for 4/7 × 2/9

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0
The answer is 8/63
just multiply across

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Solve by elimination using subtraction.<br> 2x + y = -5<br> 2x - 5y = 13
spayn [35]

Answer:

(- 1, - 3 )

Step-by-step explanation:

Given the 2 equations

2x + y = - 5 → (1)

2x - 5y = 13 → (2)

Subtracting (1) from (2) term by term will eliminate the x-0 term

0 - 5y - y = 13 - (- 5) , that is

- 6y = 18 ( divide both sides by - 6 )

y = - 3

Substitute y = - 3 into either of the 2 equations and solve for x

Substituting into (1)

2x - 3 = - 5 ( add 3 to both sides )

2x = - 2 ( divide both sides by 2 )

x = - 1

solution is (- 1, - 3 )

5 0
3 years ago
Read 2 more answers
Is 49 a perfect square
Sholpan [36]
Yes, it is also a square number
8 0
3 years ago
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Answer this question please!
fomenos

r_{2} = \frac{F_1 \sin(\theta)}{F_{2} \sin(\psi)}

4 0
3 years ago
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:
Anastasy [175]

Inequalities help us to compare two unequal expressions. (-6, 3) is not the solution to the system of inequalities.

<h3>What are inequalities?</h3>

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.

The graph of y ≥ −3x + 3 will be a solid line with the equation y=−3x + 3, this solid line signifies that the value on this line is also included in the solution. Since the symbol is '≥' therefore the area above the line will have the solutions.

The graph of y<(3/2)x -6 will be a dashed line with the equation y=(3/2)x - 6, this dashed line signifies that there is no solution on the line. since the inequality symbol is '<' therefore, the area under the dashed line will have all the solutions.

The area where both shaded areas meet is the area that will have all the possible solutions.

PartB:

y ≥ −3x + 3

3 ≥ -3(-6) + 3

3 ≥ 18 + 3

Since the above inequality is not satisfied, (-6, 3) is not the solution to the system of inequalities.

Learn more about Inequality:

brainly.com/question/19491153

#SPJ1

4 0
2 years ago
At the school store, pencils sell for $.12 each. The pencils come in boxes of 30. The school store buys each box for $2.00.
juin [17]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
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