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3 years ago

How do you explain mental math to multiple two numbers

Mathematics

1 answer:

Fantom [35]3 years ago

7 0

When multiplying two numbers, a person can mentally add one of those numbers the other number amount of times.

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Are the triangles congruent, if so by what theorem/postulate

liberstina [14]

Yes, SSS

PR are already a given side. PS and PQ are also given sides. Lastly, RS and RQ are given sides.

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2 years ago

G(5)= please help asap

xenn [34]

Answer:

The answer is 5G

Step-by-step explanation:

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2 years ago

Out of every 1000 packages received by a merchant, three are damaged. In a day, the merchant received 600 damaged packages. How

lukranit [14]

Answer:

1.8 undamaged packages

Step-by-step explanation:

3/1000 x 600

Multiply

1.8

8 0

2 years ago

The distance to the nearest exit doir is no more than 150 feet. Use d to represent the distance in feet to the nearest exit door

il63 [147K]

Answer: $d\leq150$

Step-by-step explanation:

1. You have the following information given in the problem:

- The distance to the nearest exit door is no more than 150 feet.

- $d$ represents the distance to the nearest exit door, in feet.

2. Therefore, keeping the information above on mind, you know that the distance to the nearest exit door ( $d$ ) must be less than or equal to 150 feet, then, you can express this as following:

$d\leq150$

5 0

3 years ago

A person owns two shops. this year the telephone bill for the first job was $640 less than four times a telephone bill for the s

KIM [24]

Answer: F=bill for first shop=4S-$630; S=bill for second shop

F+S=$3265 Substitute for F

4S-$630+S=$3265

5S=$3895

S=$779 ANSWER 1: The bill for the second shop was $779

F=4S-$630

F=4($779)-$630

F=$3116-$630=$2486 ANSWER 2: The bill for the first shop was $2486.

CHECK:

F+S=$3265

$2486+$779=$3265

$3265=$3265

explanation:

5 0

3 years ago