3 years ago

PLEASEEE HELP

Mathematics

1 answer:

Sever21 [200]3 years ago

8 0

The correct answer is 6-10

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

3 years ago

What is the range? 6 7 8 7 10

jeka94

Range= 4

Range is the highest number minus the lowest number, 10-6=4

4 0

2 years ago

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For the following inequality, indicate whether the boundary line should be dashed or solid. 3x ≥ y + 1

Kay [80]

The boundary line should be solid because it have a 'great/less than or equal to' sign

8 0

3 years ago

How many solutions does the following system have?<br> 2x- 4y = 11<br> -2x + 4y = -10

rosijanka [135]

Answer:

This system has no solution

Step-by-step explanation:

-(11+4y)+4y=-10

no solution

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3 years ago

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Write the polynomial as a product: p2q+r2–pqr–pr

Assoli18 [71]

${p}^{2} q + {r}^{2} - pqr - pr \\ = pq(p - r) - r(p - r) \\ = (pq - r)(p - r)$

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3 years ago

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