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3 years ago

I don’t understand this math at all someone please help !

Mathematics

2 answers:

slavikrds [6]3 years ago

5 0

I believe the answer is -21i

AfilCa [17]3 years ago

4 0

-21 is the answer!! hope it helps <3

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Suppose that the first team member in a 3-person relay race must run 2 1/4 laps, the second team member must run 1 1/2 laps, and

Kisachek [45]

You need to add up all 3 mixed numbers to find the total laps.

2 + 1/4 + 1 + 1/2 + 3 + 5/8 =

(2 + 1 + 3) + (1/4 + 1/2 + 5/8) =

6 + (2/8 + 4/8 + 5/8) =

6 + (11/8) =

6 + (1 + 3/8) =

7 3/8 laps

6 0

3 years ago

Read 2 more answers

Find the 20th term of an A.P whose first term is 102 and common difference -3

Irina-Kira [14]

A(20) = a+(20-1)d

A(20) = 102+(19)(-3)

A(20) = 102-57 = 45

8 0

3 years ago

HELP ME PLEASSDJDJXKKCKCKC

attashe74 [19]

the answers is

1 Inch = 4 Feet

Here is the explanation -

the side of square = 12

length of Ground - 48

ratio of length = 12 /48

= 1/4

1 : 4

bye

7 0

2 years ago

A bowling alley charges $3 to rent shoes. Four friends each pay for one game and for renting

Aleksandr [31]

Answer:

3(4)+g=28

Step-by-step explanation:

3 is the cost of one pair of shoes and 4 is how many shoes were rented. you multiple the 3 times 4 and get 12 and to get the amount of one game you have to subtract the total amount. the equation I came up with might not be what your teacher wants but thats a start. hope it helped!

3 0

2 years ago

Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite

Delvig [45]

Answer:

0.75 liters of 5% hydrochloric acid solution
0.25 liters of 45% hydrochloric acid solution.

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

$x+y=1$

i.e $x=1-y$ --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

$0.05x+0.45y=1\times 0.15$