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3 years ago

Helpppppppppppp!!!!!!!!!!!!! 20 Pointssssssssssssss!!!

Mathematics

2 answers:

son4ous [18]3 years ago

5 0

Answer:

115

Step-by-step explanation:

because 6 & 7 will add up to 180

so if 7 = 65

then 180 - 65 = 115

#6 = 115

saw5 [17]3 years ago

3 0

Answer:

115

Step-by-step explanation:

180-65=115

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In a class full of men and women 5/9of the class are women. What is the ratio of men to women in its

Murljashka [212]

Answer:

The ratio in its simplest from is 4:5

Step-by-step explanation:

Now, let’s pick an arbitrary value for the total number of students in that class.

Let’s say we have 45 students in the class

The number of women would be 5/9 * 45 = 25

The number of men would be 45-25 = 20

So the ratio of men to women would be;

20:25 which in its simplest form = 4:5

4 0

3 years ago

Marcella bought 12/14 yards of ribbon. She uses 2 1/2 yards of ribbon for gift packages and 3 2/3 yards to tie balloons.

xenn [34]

Answer:

$6\frac{1}{12}\ yd$

Step-by-step explanation:

<u><em>The correct question is</em></u>

Marcella bought 12 1/4 yards of ribbon. She uses 2 1/2 yards of ribbon for gift packages and 3 2/3 yards to tie balloons.

How many yards of ribbon does Marcella have left?

we know that

To find out how many yards of ribbon Marcella has left, add up the yards of ribbon used for the gift packages plus the yards of ribbon used to tie the balloons. and subtract this result from the total yards of ribbon bought by Marcella

$12\frac{1}{4}-(2\frac{1}{2}+3\frac{2}{3})$

but first convert mixed number to an improper fractions

$12\frac{1}{4}=\frac{12*4+1}{4}=\frac{49}{4}$

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

$3\frac{2}{3}=\frac{3*3+2}{3}=\frac{11}{3}$

substitute in the expression above

$\frac{49}{4}-(\frac{5}{2}+\frac{11}{3})$

$\frac{49}{4}-(\frac{5*3+2*11}{6})$

$\frac{49}{4}-(\frac{37}{6})$

$\frac{3*49-37*2}{12}$

$\frac{73}{12}\ yd$

Convert to mixed number

$\frac{73}{12}\ yd=\frac{72}{12}+\frac{1}{12}=6\frac{1}{12}\ yd$

7 0

3 years ago

Jenny wants to buy the newest music from her local store. she buys 3 CDs that cost $ 36. If she gives the cashier a 50 dollar bi

Natalija [7]

Answer:

$14 will be her change

Step-by-step explanation:

1. subtract the $36 from the 50 dollar bill

$50-$36= 14

8 0

3 years ago

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Write 5,482 in expanded form

MakcuM [25]

Answer:

5000 + 400 + 80 + 2

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3 years ago

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Sally read 13 books during this month.her brother read 7 books.one fourth of all books they read were non fiction. how many non

vladimir1956 [14]

Thirteen plus seven is twenty. One fourth of twenty is five.
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3 years ago