Question

1) find
the value of (90+70)
(90+70) x (9+70​

Answer 1

Answer:

Solution for What is 90 percent of 70:

90 percent * 70 =

(90:100)* 70 =

(90* 70):100 =

6300:100 = 63

Now we have: 90 percent of 70 = 63

Question: What is 90 percent of 70?

Percentage solution with steps:

Step 1: Our output value is 70.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$70=100\%$.

Step 4: Similarly, $x=90\%$.

Step 5: This results in a pair of simple equations:

$70=100\%(1)$.

$x=90\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{70}{x}=\frac{100\%}{90\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{70}=\frac{90}{100}$

$\Rightarrow x=63$

Therefore, $90\%$ of $70$ is $63$

Answer 2

Answer:

Given,

The value of (90+70)=160

=160+79

=239

Therefore, the value of (90+70)

(90+70) x (9+70 = 239