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taurus [48]
2 years ago
11

By which number -7÷25 should be divided to get -1÷15

Mathematics
1 answer:
fredd [130]2 years ago
3 0

Answer:

Step-by-step explanation:

Set it up like an equation first:

\frac{\frac{-7}{25} }{x}=-\frac{1}{15} and then bring up the lower fraction, flip it, and multiply:

-\frac{7}{25}*\frac{1}{x}=-\frac{1}{15}

Simplify to

-\frac{7}{25x}=-\frac{1}{15} and cross multiply to get

-25x = -105 and divide both sides by -25 to get that

x=\frac{105}{25}=\frac{21}{5}

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max2010maxim [7]
Half of 23 would 11.5 and you had to do was divide 23 by 2


5 0
4 years ago
Read 2 more answers
Pocket money is split between Paula, Alan and Henry in the ratio 7:3:2. Alan gets £3.75.
Brums [2.3K]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Writing it out like this will help:

7 : 3 : 2

? : 3.75 : ?

So, 3.75 is 3 parts as per this ratio

Divide this amount by 3 to get 1 part in the ratio

3.75 / 3 = 1.25

Now simply multiply all the other ratios by this value to find how much the others get:

1.25 x 7 = 8.75

1.25 x 2 = 2.5

Paula gets £8.75 and Henry gets £2.50

The amount altogether would be their individual amounts added together:

8.75 + 2.50 + 3.75 = 15

The total amount of money is £15.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

5 0
3 years ago
Maya purchased 8¼ pints of ice cream for a party. If each guest will be served exactly ⅔ pint of ice cream, what is the greatest
JulijaS [17]

Answer:

12

Step-by-step explanation:

turn both fractions into decimals boo, this will make it easier to solve.

g can equal amount of quests

so, the equation will be g(2/3)=8 1/4

put in as decimal divide 2/3 both sides

round to nearest whole number bc there cannot be a part of a person

this works bc it is each guest getting the same amount of ice cream until it is gone boo<3 hope this helpsssss

7 0
3 years ago
The sum of two numbers a and b is 7 and the difference between them is 2. What is the value of a x b ? Give your answer as a mix
Andre45 [30]

Answer:

45/4

Step-by-step explanation:

We can interpret the question to have two equation which can be solve simultaneously

a+b=7------------(1)

a-b=2------------(2)

From eqn(2) make a subject of formula

a=2+b--------(3)

Substitute the (3) into eqn(1)

a+b=7------------(1)

2+b+b=7

2b=7-2

2b=5

b=5/2

From equation (3) substitute value of b to find a

a=2+b--------(3)

a= 2+5/2

a=9/2

Then What is the value of a x b ?

9/2× 5/2

=45/4

8 0
3 years ago
Will mark brainiest for simplest and most coherent answer. What does it mean if an x (input) or y (output) value doesn't make se
Maksim231197 [3]

Answer:

I tried to answer but I still would like to know what doesn't make sense.

Considering the identity:

\sec^2\theta-\tan^2\theta=1 \implies |\sec\theta|\geq1

$\forall\;\theta\in\mathbb{R}-\{(2n+1)\frac{\pi}{2}, n\in\mathbb{Z} \}$

The identity is true whenever both sides are defined. It is not supposed to hold the values when we have division by zero, because it is undefined.

If the value doesn't make sense, it is probably not a function, or it is undefined by the given value of x.

Let's go back to the definition of function again:

A function relates a set of inputs and a set of allowable outputs where each input is related to only one output. It basically defines the relation of ordered pairs.

Hope it helped you a bit.

8 0
3 years ago
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