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3 years ago

Round the fraction 7 4/5 to the nearest whole number.

2 answers:

6 0

Here is your answer:

7: 4/5

Simplified the mixed fraction.

7×5=35

35+4=39

It will be 39/5

Then you divide:

7×5=35

35 is the closest to 39...

39÷7=5.5

5.5=6

Your answer is...
=6

tekilochka [14]3 years ago

3 0

Eight should be the answer you are looking for.

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I’ll give extra points

ollegr [7]

Answer:

the 2nd one

Step-by-step explanation:

5 0

2 years ago

It costs a family $216 to refinish a wood floor. They want to refinish floor in a larger room. The ratio of corresponding sides

Brut [27]

D 288 because 216/3 equals 72 times that by 4 and you get 288.

5 0

3 years ago

The average value of two positive numbers is 30% less than one of the two numbers. By which percentage is average value bigger t

Viefleur [7K]

Answer:

75% bigger

Step-by-step explanation:

Let the first number be x and the second be y.

So:

$Average = \frac{x + y}{2}$

And:

$Average = (1 - 30\%) * x$ -----30% less than x

Substitute $Average = (1 - 30\%) * x$ in $Average = \frac{x + y}{2}$

$\frac{x + y}{2} = (1 - 30\%) * x$

$\frac{x + y}{2} = (1 - 0.30) * x$

$\frac{x + y}{2} = 0.70 * x$

$\frac{x + y}{2} = 0.70x$

Cross multiply

$x + y = 0.70x * 2$

$x + y = 1.40x$

Collect like terms

$1.40x - x = y$

$0.40x = y$

Make x the subject

$x = \frac{y}{0.40}$

$x = 2.50y$

So, the average is:

$Average = (1 - 30\%) * x$

$Average = (1 - 30\%) * 2.50y$

$Average =0.70 * 2.50y$

$Average =1.75y$

Rewrite as:

$Average =(1 + 0.75)y$

Express as percentage

$Average =(1 + 75\%)y$

This means that the average is 75% bigger than the second number

6 0

2 years ago

If cos(2/3x+20)°=sin(2x−10)°, find the acute angles of the corresponding right triangle.

adell [148]

Answer:

A = 40°

B = 50°

Step-by-step explanation:

If cos A = sin B, then A + B = 90

So, 2x/3 + 20 + 2x - 10 = 90

2x + 60 + 6x - 30 = 270

8x + 30 = 270

8x = 240

x = 30

2x/3 + 20 = 60/3 + 20 = 20 + 20 = 40

2x - 10 = 2(30) - 10 = 60 - 10 = 50 or 90 - 40 = 50

7 0

3 years ago

Rewrite the equation in Ax+By=C form.<br> Use integers for A, B, and C.<br> y-3=6(x-5)

Mama L [17]

Answer:

y-6x=-27

Step-by-step explanation:

simplify with distributive property

y-3=6x-30

add 3 to both sides

y=6x-27

take away 6x from both sides

y-6x=-27

P.S. please give brainliest

7 0

2 years ago