3 years ago

Write an expression that can be used to multiply 6 x 198 mentally? please answer thanks!

Mathematics

2 answers:

maxonik [38]3 years ago

8 0

<span>Assuming you meant 6 x 198... Do a mental sum for 6 x 200 (1200) then subtract 6
</span>

valkas [14]3 years ago

3 0

-6 x 2 + 6 x 200. Since you want to find out 6 multiplied by 198 the easiest way (for me) would be to round it and then substract 12 since 200-198 is equal to 2 and 6 x 2 is equal to 12

You might be interested in

from a window 24 feet above the ground, the angle of elevation to the top of another building is 38 degrees. The distance betwee

Snowcat [4.5K]

Answer:

The height of the building is $73.2\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC

$tan(38\°)=\frac{BC}{AB}$

we have

$AB=63\ ft$

substitute and solve for BC

$tan(38\°)=\frac{BC}{63}$

$BC=(63)tan(38\°)=49.2\ ft$

Find the height of the building

The height of the building (h) is equal to

$h=BC+24=49.2+24=73.2\ ft$

8 0

3 years ago

aleksklad [387]

Answer:

.4 is the answer

Step-by-step explanation:

2÷5= .4

7 0

2 years ago

Read 2 more answers

The cost of a piece of fabric is $1.32 per yard.

koban [17]

Answer:

1.32 x 3.5= 4.62

..............

4 0

3 years ago

Read 2 more answers

A gymnast trains for 4 months for her competition how many weeks did she train.

BaLLatris [955]

Answer:

16 weeks

Step-by-step explanation:

Assuming that each month is around 4 weeks, multiply that number by 4 months and you will get 16 weeks in total.

5 0

2 years ago

Read 2 more answers

Chico walks 3/5 mile to the library. Nikki walks 1/4 the distance that Chico walks to the library.

Irina-Kira [14]

1/4 of 3/5 is 3/20. You find this by multiplying the 2 fractions. Numerator by numerator and denominator by denominator.

3 0

3 years ago