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3 years ago

Please answer this correctly without making mistakes

Mathematics

2 answers:

bezimeni [28]3 years ago

4 0

Answer:

50%

Step-by-step explanation:

ch4aika [34]3 years ago

3 0

Answer:

50 present

Step-by-step explanation:

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India can paint 3 1/5 walls in one day. How many walls can she paint in 5 1/2 days?

sladkih [1.3K]

Change the mixed numbers into fractions.

$3 \frac{1}{5}$
$3 * 5 = 15$
$15 + 1 = 16$
$3 \frac{1}{5} = \frac{16}{5}$

$5 \frac{1}{2}$
$5 * 2 = 10$
$10 + 1 = 11$
$5 \frac{1}{2} = \frac{11}{2}$

Multiply these fractions together:

$\frac{16}{5} * \frac{11}{2} = \frac{176}{10} 
$

Simplify the fraction.

$\frac{176}{10} / \frac{2}{2} = \frac{88}{5}$

$88 / 5 = 17 R3 = 17 \frac{3}{5}$

India can paint 17 and 3/5 walls in 5 and a half days.

7 0

3 years ago

The volume of a cylinder is 540π ft3. The height is 15 ft. What is the diameter of the cylinder?

Nonamiya [84]

D = 2r

V = A*h

540π = πr²*h

540 = (d/2)²*15

540 = d²/4*15

540*4 = 15d²

d² = 2160 / 15

d² = 144

d = √144

d = 12 ft

3 0

3 years ago

Read 2 more answers

Waht is the difference between 148 and 400

lesya [120]

Difference is subtract so 400-148=252

5 0

3 years ago

Find the area of the polygon?

Sindrei [870]

Answer:

Step-by-step explanation:

reqd.area=area of square ABCD + area of trapezoid(or trapezium)CEFG

BE=BC+CE=16+16

CD=CG+GD=8+8

A=16×16+1/2 (16+8)×16

=256+192

=448 sq. inches.

reqd. area=32×16-1/2(8×16)

=512-64

=448 sq. inches.

3 0

3 years ago

What is the sum of -36 4/9 - (10 2/9) - (18 2/9)

grigory [225]

let's firstly convert the mixed fractions to improper fractions and then add them up.

$\bf \stackrel{mixed}{36\frac{4}{9}}\implies \cfrac{36\cdot 9+4}{9}\implies \stackrel{improper}{\cfrac{329}{9}} \\\\\\ \stackrel{mixed}{10\frac{2}{9}}\implies \cfrac{10\cdot 9+2}{9}\implies \stackrel{improper}{\cfrac{92}{9}}~\hfill \stackrel{mixed}{18\frac{2}{9}}\implies \cfrac{18\cdot 9+2}{9}\implies \stackrel{improper}{\cfrac{164}{9}} \\\\[-0.35em] ~\dotfill$

$\bf -\cfrac{329}{9}-\cfrac{92}{9}-\cfrac{164}{9}\implies \stackrel{\textit{using the LCD of 9}}{\cfrac{-329-92-164}{9}}\implies -\cfrac{585}{9}\implies -65$

8 0

3 years ago