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3 years ago

9.65 -3.12 use rounding to estimate

Mathematics

1 answer:

Ratling [72]3 years ago

8 0

The answer to 9.65-3.12=6.53 but when you round up its 7

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Sophie's pool table is 5' wide and 8' long. Sophie wants to replace the felt on the pool table. The felt cost $5 per square foot

attashe74 [19]

Answer:

45$

Step-by-step explanation:

5 0

3 years ago

How many solutions does this linear system have? y = y equals StartFraction 2 over 3 EndFraction x plus 2.x+ 2 6x – 4y = –10

Ira Lisetskai [31]

Answer:

The system has one solution

Step-by-step explanation:

we have the system of equations

$y=\frac{2}{3}x+2$ ----> equation A

$6x-4y=-10$ ----> equation B

Solve the system by substitution

substitute equation A in equation B

$6x-4(\frac{2}{3}x+2)=-10$

$6x-\frac{8}{3}x-8=-10$

Solve for x

Multiply by 3 both sides to remove the fraction

$18x-8x-24=-30$

Combine like terms

$10x=-30+24$

$10x=-6$

$x=-\frac{6}{10}$

Simplify

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

<em>Find the value of y</em>

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

$y=-\frac{6}{15}+2$

$y=\frac{24}{15}$

Simplify

$y=\frac{8}{5}$

The solution of the system is the point $(-\frac{3}{5},\frac{8}{5})$

therefore

The system has one solution

4 0

3 years ago

Read 2 more answers

What is equal to z+(z+6)

svetoff [14.1K]

Answer:

2z+6

Step-by-step explanation:

z+z+6

Combine like terms

2z+6

3 0

3 years ago

Read 2 more answers

Will give brainliest

patriot [66]

Answer:

-20,400

Step-by-step explanation:

if 1min=-1,200 then

-1,200*17min=-20,400.

If you need more help or info let me know in the comments section!

5 0

3 years ago

Which function represents the relationship between x and y when y=16/5 and x=20

STatiana [176]

Answer:

y = (4/25)x

Step-by-step explanation:

We are given;

y = 16/5 and x = 20

Now if y varies directly with x, then we can say;

y = mx

Where m is constant of proportionality

This means that;

16/5 = 20m

Divide both sides by 20 to get;

(16/5) × 1/20 = m

16/100 = m

m = 4/25

Thus,the equation is:

y = (4/25)x

6 0

3 years ago