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3 years ago

Using PEMDAS, which expression would you solve for first in the equation 7 * 4 + 22 / 4 - 2?

Mathematics

1 answer:

Anna71 [15]3 years ago

8 0

A. 7*4

because there are no parentheses or exponents so multiplication is next

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Write the equation in standard form y = -10x + 6

Mumz [18]

Step (1) Flip the equation

−10x+6=y

Step (2) Add -6 to both sides

−10x+6+−6=y+−6

−10x=y−6

Step (3) Divide both sides by -10

−10x−10=y−6−10

ANSWER
$x = \frac{ - 1}{10} y + \frac{3}{5}$

5 0

3 years ago

-5y+8x=-18 5y+2x=58 Solve for x and y

xxMikexx [17]

Answer:

in -5y+8x=-18 and 5y+2x=58

x = 4

in -5y+8x=-18 and 5y+2x=58

y = 10

7 0

3 years ago

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Choose the missing step in the given solution to the inequality −x − 10 > 14 + 2x. −x − 10 > 14 + 2x −3x − 10 > 14 ____

Tresset [83]

Answer:

−3x > 24

Step-by-step explanation:

Adding 10 to both sides of the inequality will give the missing step:

-3x -10 +10 > 14 +10

-3x > 24

8 0

3 years ago

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Need help with a math problem

Greeley [361]

The answer would be $159.85

6 0

3 years ago

If M∠ ABD =64 and M∠CBD=30 then M∠ABC= Need help

Leno4ka [110]

Answer:

$\displaystyle m\angle ABC = 34^\circ$

Step-by-step explanation:

∠ABD is the sum of the angles ∠ABC and ∠CBD. In other words:

$\displaystyle m\angle ABD = m\angle ABC + m\angle CBD$

Substitute in known values:

$\displaystyle \left(64^\circ\right) = m\angle ABC + \left(30^\circ\right)$

And subtract. Hence:

$\displaystyle m\angle ABC = 34^\circ$

In conclusion, ∠ABC measures 34°.

4 0

2 years ago