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3 years ago

Order of operations

Mathematics

2 answers:

FrozenT [24]3 years ago

7 0

Answer:

Exponents first then multiplication then subtraction

Murljashka [212]3 years ago

7 0

Answer:

Parenthesis.

Exponents.

Multiplication.

Division.

Addition.

Subtraction.

Please excuse my dear aunt sally.

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Question 10 (5 points)

Marina CMI [18]

Answer:

D) 24.5

Step-by-step explanation:

use the pythagorean theorem.

$a^{2} +b^{2}=c^{2}$

Plug in the values. $a^{2} + 25^{2} =35x^{2}$

a+ 625 = 1225

then solve for a by subtracting 625 from 1225 = 600

√600= 24.5

5 0

3 years ago

What is a sum for 4/3.

Margarita [4]

A sum is addition. This problem is division... But 4/3= 1.33333.

4 0

2 years ago

Solve (2/3)-(1/x)=5/6

Keith_Richards [23]

$\frac{2}{3} - \frac{1}{x} = \frac{5}{6}$ Multiply both sides by 3
$2 - \frac{1(3)}{x} = \frac{5(3)}{6}$ Simplify the numerators
$2 - \frac{3}{x} = \frac{15}{6}$ Multiply both sides by 6
$12 - \frac{3(6)}{x} = 15$ Simplify the numerator
$12 - \frac{18}{x} = 15$ Multiply both sides by x
12x - 18 = 15x Subtract 12x from both sides
-18 = 3x Divide both sides by 3
-6 = x Switch the sides to make it easier to read
x = -6

Check your answer by plugging -6 in for the x in the original problem:

$\frac{2}{3} - \frac{1}{x} = \frac{5}{6}$ Plug in -6 for x
$\frac{2}{3} - \frac{1}{-6} = \frac{5}{6}$ Change $\frac{2}{3}$ to $\frac{4}{6}$ so all denominators are the same
$\frac{4}{6} - \frac{1}{-6} = \frac{5}{6}$ Change $\frac{1}{-6}$ to $\frac{-1}{6}$ for easier work
$\frac{4}{6} - \frac{-1}{6} = \frac{5}{6}$ Subtract the numerators (4 - (-1) )
$\frac{5}{6}$ = $\frac{5}{6}$

So, x = -6 .

5 0

3 years ago

Solve for y.<br> 3x-4y=6<br> Explain please!

Snezhnost [94]

So 3x=6+4y
divide both of the equations by 3
x=2+4y÷3
x=2+4/3 y
your answer
x=2+4/3 y hope this will help