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3 years ago

-5 1/5 + 3.7 + 5 1/10 how to solve

Mathematics

1 answer:

Vikentia [17]3 years ago

8 0

Answer:

to find the answer u have to simplify

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a 13 ft ladder is placed against the side of the building. The bottom of the ladder is 5 ft away from the bottom of the building

puteri [66]

The final answer is x=12
So the ladder will reach 12 feet up

4 0

3 years ago

50 POINTS TO WHOEVER HELPS WITH THIS I NEED IT ASAP PLEASE HELP

Tresset [83]

Answer:

4a ) Difference ⇒ $ 63.24,

4b ) 4 children

Step-by-step explanation:

4a ) If the number of children is represented by the value of x, let us substitute a family of 2 children as value of x into this equation we are given;

y = 21.08 * ( 2 ) + 85.15 ⇒ Multiply 21.08 by 2,

y = 42.16 + 85.15 ⇒ Combine like terms,

y = 127.31

If y ⇒ amount spent on grocery's, let us solve for the amount spent on 5 children, and subtract from this amount;

y = 21.08 * ( 5 ) + 85.15 ⇒ Multiply 21.08 by 5,

y = 105.4 + 85.15 ⇒ Combine like terms,

y = 190.55

Difference; 190.55 - 127.31 = 63.24,

Solution; Difference ⇒ $ 63.24

4b ) If the amount is $ 169.47, let us plug it into our given equation provided amount spent on groceries ⇒ y;

169.47 = 21.08x + 85.15 ⇒ Subtract 85.15 from either side of equation,

21.08x = 84.32 ⇒ Divide either side 21.08,

x = 4 children

Solution; 4 children

7 0

3 years ago

| 15. Aliyah runs approximately 5.4 miles per hour.

miss Akunina [59]

Answer: 33.33 minutes longer.

Step-by-step explanation :

We need to remember the following formula:

$t=\frac{d}{V}$

Where "t" is the time, "d" is the distance and "V" is the speed.

We know that she runs approximately 5.4 miles per hour, then:

$V=5.4\ \frac{mi}{h}$

Since she plans to run 9 miles on Tuesday, her run's time on Tuesday will be:

$t_1=\frac{9\ mi}{5.4\ \frac{mi}{h}}\\\\t_1=\frac{5}{3}\ h$

Making the conversion from hours to minutes, we get:

$(\frac{5}{3}\ h)(\frac{60\ min}{1\ h})=100\ min$

Since she plans to run 12 miles on Thursday, her run's time on that day will be:

$t_2=\frac{12\ mi}{5.4\ \frac{mi}{h}}\\\\t_2=\frac{20}{9}\ h$

Making the conversion from hours to minutes, we get:

$(\frac{20}{9}\ h)(\frac{60\ min}{1\ h})=133.33\ min$

Finally in order to find how many longer will her run be on Thursday compared to Tuesday, we need to make the following subtraction:

$t_2-t_1=133.33\ min-100\ min=33.33\ min$

6 0

3 years ago

last night's Dansball game, there were 4 walks and 15 hits. Express the ratio of walks to hits , written in three different ways

Ede4ka [16]

Answer:

4/15, 4:15, 4 to 15

Step-by-step explanation:

Let W be the walks and H the hits, then,

WAY1:

$\frac{W}{H} =\frac{4}{15}$

WAY2:

W:H⇒4:15

WAY3

W to H ⇒4 to 15

3 0

3 years ago

Please answer this question !!

ahrayia [7]

The last one. Hope this helps:)

3 0

4 years ago

Read 2 more answers