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3 years ago

(6²+2²)÷4−10 Can someone HElp?

Mathematics

2 answers:

marissa [1.9K]3 years ago

8 0

Answer:

The answer is -20/3

Step-by-step explanation:

(6² + 2²) ÷ 4 - 10

36 + 4 ÷ (-6)

40/(-6) = -20/3

Thus, The answer is -20/3

<u>-</u><u>TheUnknownScientist</u><u> 72</u>

Akimi4 [234]3 years ago

4 0

Answer:

Step-by-step explanation:

6^2 + 2^2 = 36 + 4 = 40 Evaluate what is in the brackets.

40/4 = 10 Divide by 4

10 - 10 = 0 Subtract 10

The answer is zero.

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Write a story that matches the expression -7h - 10

OLEGan [10]

Wants to find how much money he will spend for a number of ride tickets, h, he purchases
he gets into an amusement park by paying a fee of 10 dollars
each ride is 7 dollars

so his looss is -7h-10

8 0

4 years ago

If the sum of Noor's age and Salma's age = 30, 3 years ago Noor's

Flura [38]

Answer:

Noor's age is 12 & Salma's age is 18

Step-by-step explanation:

Noor's age: N

Salma's age: S

$N+S=30$ : given

$N - 3 = \frac{S}{2}$ : given

$N = \frac{S}{2}+3$ : isolate "N"

$\frac{S}{2}+3 + S = 30$ : substitute the value of N for N to find the value of "S"

$\frac{S}{2} + S = 27$ : subtract 3 from both sides

$\frac{S}{2}*2 + S*2 = 27*2$ ≡ $S + 2S = 54$ : multiply both sides by 2

$3S = 54$ : add like values

$\frac{3S}{3} = \frac{54}{3}$ : divide both sides by 3

S = 18

now insert that value into the initial equation:

$N + 18 = 30$

$N = 12$ : subtract 18 from both sides

8 0

3 years ago

George walked around the entire perimeter of his rectangular garden. The length of his garden was 12 yards and the width was 8 y

creativ13 [48]

None of the above the answer is 96

8 0

3 years ago

Read 2 more answers

if the perimeter of Milo's rectangular backyard Is 16 feet. which of the following could be the dimensions of the yard? circle a

postnew [5]

Answer:

the answer is a and d

Step-by-step explanation:

6 + 6 + 2 +2 = 16

3 + 3 + 5 + 5 = 16

to find perimeter, double each factor and add :)

6 0

3 years ago

Use elimination to solve.<br> 3y-6x=7<br> -4y-3x=9

shtirl [24]

Answer:

x = -5/3, y = -1 or $(-\frac{5}{3}, -1)$

Step-by-step explanation:

Solving systems of linear equations using process of elimination involves eliminating one of the variables (and its coefficient) in order to solve the other variable either through addition or subtraction. However, there may be other mathematical operations necessary before one of the variables can be eliminated.

Equation 1: 3y - 6x = 7

Equation 2: -4y - 3x = 9

<h3>Step 1: Multiply Equation 2 by -2:</h3>

(-2)(-4y - 3x) = 9 (-2)

8y + 6x = -18

<h3>Step 2: Add "8y + 6x = -18" to Equation 1:</h3>

8y + 6x = -18

+ 3y - 6x = 7

11y = -11

<h3>Step 3: Divide both sides by 11 to solve for y:</h3>

$\frac{11y}{11} = \frac{-11}{11}$

y = -1

<h3>Step 4: Substitute y = -1 into Equation 2 to solve for x: </h3>

-4(-1) - 3x = 9

4 - 3x = 9

<h3>Step 5: Subtract 4 from both sides:</h3>

4 - 4 - 3x = 9 - 4

- 3x = 5

<h3>Step 6: Divide both sides by -3 to solve for x:</h3>

$\frac{-3x}{-3} = \frac{5}{-3}$

$x = - \frac{5}{3}$

Verify whether the values for x and y are correct by substituting their values into both equations:

x = -5/3, y = -1

Equation 1: 3y - 6x = 7

$3(-1) - 6(-\frac{5}{3}) = 7$

-3 + 10 = 7

7 = 7 (True statement).

Equation 2: -4y - 3x = 9

-4(-1) - 3 (-5/3) = 9

$-4(-1) - 3(-\frac{5}{3}) = 9$

4 + 5 = 9

9 = 9 (True statement).

Therefore, x = -5/3 and y = -1 are the solutions to the given systems of linear equations.

8 0

3 years ago