All categories

4 years ago

Sue wants to use Mental Math to find 2 x 53 write an expression she could use

Mathematics

1 answer:

Vinil7 [7]4 years ago

7 0

You could separate the equation:

2*50+ 2*3=

I know that 2*50= 100; 2*3= 6

100+6= 106

I hope this helps!
~cupcake

You might be interested in

A 555-mile, 5-hour plane trip was flown at two speeds. For the first part of the trip, the average speed was 105 mph. Then the t

Pepsi [2]

Answer:

Hence Distance traveled at speed 115 mph is 345 miles and Distance traveled at speed 105 mph is 210 miles.

Step-by-step explanation:

Given:

Total Distance = 555 mile

Total time = 5 hour

Let time taken to travel at 115 mph be t

So Time taken to travel at 105 mph will be equal to difference between Total time and time taken to travel at 115 mph.

Time taken to travel at 105 mph = $5-t$

Distance traveled in speed 105 mph will be equal to speed multiplied by time taken to travel at 105 mph.

Framing in equation form we get;

Distance traveled in 115 mph = $115t$

Also;

Distance traveled in speed 105 mph will be equal to speed multiplied by time taken to travel at 105 mph.

Framing in equation form we get;

Distance traveled in 105 mph = $105(t-5) = 105t - 525$

Now Total Distance traveled is equal sum of Distance traveled in 115 mph and Distance traveled in speed 105 mph

$115t-(105t-525)=555\\\\115t-105t+525=555\\\\10t+525=555\\\\10t=555-525\\\\10t=30\\\\t=\frac{30}{10}=3$

Time taken to travel at 115 mph = 3 hrs.

Time taken to travel at 105 mph = $5-t=5-3=2\ hrs$

Now Distance traveled in 115 mph = $115t = 115 \times 3 = 345\ miles$

Distance traveled in 105 mph = $105(5-t) = 105(5-3)= 105\times 2 = 210\ miles$

Hence Distance traveled at speed 115 mph is 345 miles and Distance traveled at speed 105 mph is 210 miles.

6 0

3 years ago

There are eight questions, worth ten points. How many points is each question worth?

Margarita [4]

Answer:

Step-by-step explanation:

8 questions worth 10 points...

10/8 = 1.25 points per question <==

7 0

3 years ago

Read 2 more answers

Find six rational numbers between 3 and 4.

inna [77]

3.1, 3.2, 3.3, 3.4, 3.5 and 3.6

3 0

4 years ago

Read 2 more answers

Can You show me how to do this?

Elanso [62]

22a is < since multiplying something by a fraction less than one makes it smaller.
22b is = since multiplying something by a fraction equal to one makes it stay the same.
22c is > since multiplying something by a mixed number makes it larger.
22d is < since multiplying something by a fraction less than one makes it smaller.
Hope this helps!

4 0

4 years ago

Can i not have the interactive ads

Lunna [17]

Press the x in the top :)

7 0

3 years ago