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Dennis_Churaev [7]
3 years ago
5

Mr and mrs Gomez are buying carpet for their square shaped bedroom which measures 7 yd along each wall the carpet is $21 per squ

are and padding and installation is another $4 how much will they spend in all?
Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

Step-by-step explanation: The area of the bedroom is

A=7yd^2

 

The total cost is the sum of the price rates times this area.  

 

C=A•($21+$5)/yd^2

 

where C is total cost.  

 

C=7yd^2•($21+$5)/yd^2

C=$182

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Kelly lives 2 miles away from school. Harry closer to the school than Kelly. Which could be the distance that harry lives from s
riadik2000 [5.3K]

Answer:

D. 3,461

Step-by-step explanation:

There are 3520 yards in two miles and 3,461 yards is less than 3,520... meaning that he lives closer to the school.

3,461 < 3,520

3 0
3 years ago
What is 9% of 42 pls help fast!
joja [24]

Answer:

3.78

Step-by-step explanation:

Percentage solution with steps:

Step 1: We make the assumption that 9 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$.

Step 3: From step 1, it follows that $100\%=9$.

Step 4: In the same vein, $x\%=42$.

Step 5: This gives us a pair of simple equations:

$100\%=9(1)$.

$x\%=42(2)$.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{9}{42}$

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{42}{9}$

$\Rightarrow x=466.67\%$

Therefore, $42$ is $466.67\%$ of $9$.

4 0
3 years ago
Read 2 more answers
4x-3y=2<br> 3x=5y=16<br> solve using substitution method
vodomira [7]

\left\{\begin{array}{ccc}4x-3y=2&|\text{add 3y to both sides}\\3x+5y=16\end{array}\right\\\left\{\begin{array}{ccc}4x=3y+2&|\text{divide both sides by 4}\\3x+5y=16\end{array}\right\\\left\{\begin{array}{ccc}x=0.75y+0.5&(*)\\3x+5y=16\end{array}\right\\\\\text{substitute}\ (*)\ \text{to the second equation}\\\\3(0.75y+0.5)+5y=16\qquad\text{use distributive property}\\\\(3)(0.75x)+(3)(0.5)+5y=16\\\\2.25y+1.5+5y=16\qquad\text{subtract 1.5 from both sides}\\\\7.25y=14.5\qquad\text{divide both sides by 7.25}

\boxed{y=2}\\\\\text{substitute the value of y to}\ (*):\\\\x=0.75(2)+0.5\\\\x=1.5+0.5\\\\\boxed{x=2}\\\\Answer:\ x=2\ and\ y=2\to(2,\ 2)

7 0
3 years ago
What does the equal
sergejj [24]
Plug it in your y= screen of your graphing calculator and hit 2nd and then graph. it will give u a table of values
7 0
3 years ago
Multiply (2 – 7i)(9 + 5i)
Neko [114]

(2-7i)(9+5i)

18+10i-81i-35i^2

The answer is 35i^2 - 71i +18

4 0
3 years ago
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