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3 years ago

Can someone help me with this one question?

Mathematics

2 answers:

solong [7]3 years ago

8 0

It would take 1 hour 43 minutes to fill other pool all the way. 103*45 is 4,635.

allochka39001 [22]3 years ago

8 0

Answer:

515 minutes

Step-by-step explanation:

What we know is this:

45 gallons 4,635 gallons

________ ___________

5 minutes ? minutes

We can solve it with multiplication and division.

4,635 / 45 = 103

Now, to make it even, we can multiply the 5 by 103.

5 x 103 = 515

We can check our answer:

45 / 5 = 9 and 4,635 / 515 = 9.

Therefore, it will take 515 minutes to fill the pool.

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Can someone help find missing side?

Anna35 [415]

Step-by-step explanation:

19 + 73 + 90 = 182

182 - 180 = 2

4 0

3 years ago

What is the length, in units, of segment CD?

leonid [27]

Answer:

The answet is C.

Step-by-step explanation:

First, you have to find the angle of ACB using Sine Rule, sinθ = opposite/hypotenuse :

$\sin(θ ) = \frac{oppo.}{hypo.}$

$let \: oppo. = 4 \\ let \: hypo. = 5$

$\sin(θ) = \frac{4}{5}$

$θ = {\sin( \frac{4}{5} ) }^{ - 1}$

$θ = 53.1 \: (1d.p)$

Given that line AB is parallel to line CD so ∠C = 90°. Next, you have to find the angle of ACD :

$ACD = 90 - 53.1 = 36.9$

Lastly, you can find the length of CD using Cosine rule, cosθ = adjacent/hypotenuse :

$\cos(θ) = \frac{adj.}{hypo.}$

$let \: θ = 36.9 \\ let \: adj. = 5 \\ let \: hypo. = CD$

$\cos(36.9 ) = \frac{5}{CD}$

$CD \cos(36.9) = 5$

$CD = \frac{5}{ \cos(36.9) }$

$CD = 6.25 units\: (3s.f)$

4 0

3 years ago

Priya has a piece of string 5/6 yard long. She cuts 3/5 of the piece of string for a craft. What is the length of the string lef

Solnce55 [7]

Total length of the string = $\frac{5}{6}$ yard

Length of string used for craft = $\frac{3}{5}$ of total length of string

= $\frac{3}{5}$ of $\frac{5}{6}$

= $\frac{3}{5} \times \frac{5}{6}$

= $\frac{3}{6}$ yard

Length of the string left after use = Total length of the string - Length of string used for craft

Length of the string left after use = $\frac{5}{6}-\frac{3}{6}$

= $\frac{2}{6}$

Reducing it to the lowest term, we get

= $\frac{1}{3}$ yard

Therefore, the length of string left is $\frac{1}{3}$ yard.

3 0

3 years ago

Read 2 more answers

If 5n - 3 = 7n – 5, then n= A -4 BO o D 6

ch4aika [34]

Answer:

The value of n is 1

Step-by-step explanation:

Given the expression $5n-3= 7n-5$

In other to solve for n we have to perform a series of step wise operations as follows

collecting like terms we have

$5n-7n= -5+3$

$-2n= -2\\$

The negative signs will council out on both sides we have

$2n= 2\\$

Dividing both sides by 2 we have

n= $\frac{2}{2}$

$n=1$

6 0

3 years ago

Which expression is equivalent to "9 more than the quotient of x and 5"?

Gnoma [55]

Answer:

x/5+9

Step-by-step explanation:

4 0

3 years ago