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Blizzard [7]
3 years ago
10

I need the answer ASAP

Mathematics
2 answers:
tatiyna3 years ago
6 0

Answer:

\boxed{ \bold{  \huge{ \boxed{ \sf{2 \frac{1}{4} }}}}}

Option C is the correct option.

Step-by-step explanation:

\sf{12 \frac{3}{8}  \div 5 \frac{1}{2} }

Convert mixed fraction into improper fraction

⇒\sf{ \frac{12 \times 8 + 3}{8}  \div  \frac{5 \times 2 + 1}{2} }

⇒\sf{ \frac{99}{8}   \div  \frac{11}{2} }

When any number or fraction is divided by a fraction , we multiply the dividend by reciprocal of the divisor

⇒\sf{ \frac{99}{8}  \times  \frac{2}{11} }

To multiply one fraction by another, multiply the numerators for the numerator and multiply the denominators for its denominator and reduce the fraction obtained after multiplication into lowest term.

⇒\sf{ \frac{99 \times 2}{8 \times 11}}

⇒\sf{ \frac{198}{88} }

⇒\sf{ \frac{9}{4} }

Convert the improper fraction into mixed fraction

⇒\sf{2 \frac{1}{4} }

Hope I helped !

Best regards! :D

3241004551 [841]3 years ago
5 0

Answer:

Hey there!

The answer is 2 1/4, which is 2.25

Let me know if you have any other questions!

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Mary​'s car will go 261 miles on 14.5 gallons of gasoline in highway driving.
suter [353]

Answer:

a) 91 1/6 gallons

b) 2502 miles

Step-by-step explanation:

You are given a number of miles and a number of gallons for the car. The ratio of these numbers is ...

  (261 mi)/(14.5 gal) = 18 mi/gal

We presume this value is constant for this car. Then the questions can be answered by forming and solving a proportion:

a) 1641 miles/(gallons) = 18 mi/(1 gal)

Multiplying by gallons and dividing by 18 mi/gal, we get

  1641/18 gal = (gallons) = 91 1/6 gal

It will take 91 1/6 gallons of gasoline for Mary to drive to her friend's house.

___

b) Same deal, but the miles are unknown.

  (miles)/(139 gal) = (18 mi)/(1 gal)

Multiplying by 139 gal gives ...

  (18 mi)·139 = (miles) = 2502 mi

139 gallons of gasoline will let Mary drive 2502 miles.

3 0
2 years ago
Can someone help me with this i need it for today
N76 [4]

Answer: 2y=-6.4 = y=−3.2

-4y= -3.2 = y=0.8

Step-by-step explanation:

only answering what i can sorry

3 0
3 years ago
Shondra buys a bedroom suite on the in-stallment plan. She makes a down payment of $200 and monthly payments of $52 each for thr
Dmitry [639]

Answer:

$2072

Step-by-step explanation:

Note that:

1 year = 12 months

Hence:

1 year = 12 months

3 years = x months

Cross Multiply

x = 3 × 12

x = 36 months

She makes a down payment of $200 and monthly payments of $52 each for three years.

Her total cost is represented by the expression

= $200 + $52 × m

Where m = number of monthly payments.

$200 + $52 × 36

= $200 + $1872

= $ 2072

7 0
3 years ago
One third of the opposite of a number is less than 12. Write and inequality.
fenix001 [56]
X= a number

The opposite of a number is its negative opposite. It's the additive inverses of a number. The additive inverse of 4 is -4. It will always equal zero when added together.

Inequality:
1/3(-x) < 12

Hope this helps! :)

3 0
3 years ago
The sum of 22 and n is equal to 45.13
Ber [7]

Answer:

23.13

Step-by-step explanation:

6 0
3 years ago
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