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3 years ago

Kami has 7 liters of water to fill water bottles that each hold 2.8 liters. How many bottles can she fill?

Mathematics

2 answers:

erastovalidia [21]3 years ago

8 0

Answer:

2 and one half bottles can be filled.

Step-by-step explanation:

Kami has 7 liters of water to fill the water bottles.

Each bottle hold 2.8 liters of water.

We will divide 7 liters by 2.8 liters to get the number of bottles.

The number of bottles she can fill = $\frac{7}{2.8}$

= 2.5 bottles

2 and a half bottles can be filled.

Pani-rosa [81]3 years ago

6 0

Kami can fill 2.5 bottles.

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3 years ago

Newberg City Cafe recently introduced a new flavor of coffee. They served 23 grande cups and 51 jumbo cups of the new coffee tod

yuradex [85]

Answer:

Grand coffee cup = 1469 gm

Jumbo coffee cup = 60 gm

Step-by-step explanation:

Let x be the grande coffee cup and y be the jumbo coffee cup.

Solution:

From the first statement. They served 23 grande cups and 51 jumbo cups of the new coffee today, which equal a total of 36,846 grams.

So, the equation is.

$23x+51y = 36846$ ---------(1)

From the second statement. They served 58 grande cups and 68 jumbo cups of the new coffee tomorrow, which equal a total of 59460 grams.

$58x+68y=59460$ ----------(2)

Solve the equation 1 for x.

$23x = 36846-51y$

$x=\frac{36846}{23}-\frac{51}{23}y$

$x=1602-\frac{51}{23}y$ ---------(3)

Substitute $x=1602-\frac{51}{23}y$ in equation 2.

$58(1602-\frac{51}{23}y)+68y=59460$

$92916-\frac{51\times 58}{23}y+68y=59460$

$-\frac{2958}{23}y+68y=59460-92916$

$\frac{-2958+1564}{23}y=-33456$

$\frac{-1394}{23}y=-33456$

Using cross multiplication.

$y=\frac{-23\times 33456}{-1394}$

$y = 55.99$

y ≅ 60 gram

Substitute y = 60 in equation 3.

$x=1602-\frac{51}{23}\times 60$

$x=1602-\frac{3060}{23}$

$x=1602-133.04$

$x = 1469$ grams

Therefore, grand coffee cup = 1469 gm and jumbo coffee cup = 60 gm

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3 years ago

How I can answer this question, NO LINKS, if you answer correctly I will give u brainliest!

olga nikolaevna [1]

Answer:

27 children

Step-by-step explanation:

So, if you add 9 +4 = 13. 13 x 3 = 39.

3 times 9 = 27

Hope this helped! Pls mark me brainliest!

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2 years ago

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levacccp [35]

Answer:

The above triangle is an isosceles triangle....

Reason

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As angle ABC is 80 degree

Therefore BCE is too 80 degree (as they both are alternate to each others)

Hence angle DCB is a 50 degree because in the straight DCE we have angle BCE as 80 degree and Angle ACD as 50 degree

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3 years ago

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salantis [7]

Answer:

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