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4 years ago

I NEED HELP !!!!!!!! 20 POINTS

Mathematics

1 answer:

Leto [7]4 years ago

7 0

Answer:

correct answer is 10

Step-by-step explanation:

a1 = 10 correct

a2 = 10+10 = 20

a3 =20+10 = 30..

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Whiskers the cat weighs 2 and 2 over 3 kg.piglio weighs 4 kg. How many times as heavy as piglio is whiskers

ruslelena [56]

Answer:

Whiskers is two-third times as heavy as piglio is.

Step-by-step explanation:

Given:

Weight of whiskers is, $W=2\frac{2}{3}\ kg$

Weight of piglio is, $P=4\ kg$

In order to compare their weights, we have to divide both the weights and then express one weight in terms of the other.

Therefore, dividing whiskers weight by piglio's weight, we get:

$\frac{W}{P}=2\frac{2}{3}\div 4\\\frac{W}{P}=\frac{8}{3}\div \frac{4}{1}(\textrm{4 can be rewritten as 4/1 in fraction form})$

Now, when we divide two fractions, we replace the division sign by multiplication and reverse the second fraction. This gives,

$\frac{W}{P}=\frac{8}{3}\times \frac{1}{4}\\\frac{W}{P}=\frac{8\times 1}{3\times 4}\\\frac{W}{P}=\frac{2}{3}$

Now, expressing 'W' in terms of 'P', we multiply both sides by 'P. This gives,

$W=\frac{2}{3}P$

Therefore, the weight of whiskers is two-third times as heavy as piglio is.

4 0

3 years ago

I need help with 6 and 7 please

PolarNik [594]

For number 6 its A. 4
For number 7 its B. -2/5

7 0

3 years ago

What number will make the equation true? 0.35+65/100=?/100+65/100

mariarad [96]

Answer:

Step-by-step explanation:

actually we can write 0.35 to 35/100

4 0

3 years ago

Read 2 more answers

Solve the proportional equation 2/3 = x/15

dimulka [17.4K]

2 x
----- = ------
3 15

cross multiply
(3)(x) = (15)(2)
3x = 30
x = 30/3
x = 10

so 2/3 = 10/15.......notice how these are equivalent fractions....that is because proportions are nothing but equivalent fractions

5 0

3 years ago

. Here is an equation 2x + 9 = -15. Write three different equations that have the same solution as 2x + 9 = -15. Show or explain

Anettt [7]

Answer:

1. $x-3=-15$
2. $2x=-24$
3. $2x-3=-27$

Step-by-step explanation:

Given the following question:

$2x+9=-15$

To find three equations that have the same solution as the given equation we have to first solve the equation.

$2x+9=-15$
$9-9=0$
$-15-9=-24$
$2x=-24$
$2x\div2=x$
$-24\div2=-12$
$x=-12$

Equation one:
$x-3=-15$
$-3+3=0$
$-15+3=-12$
$x=-12$

Equation two:
 $2x=-24$
$2x\div2=x$
$-24\div2=-12$
$x=-12$

Equation three:
$2x-3=-27$
$-3+3=0$
$-27+3=-24$
$-24\div2=-12$
$x=-12$

Hope this helps.

4 0

2 years ago