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3 years ago

True or false : 20÷4x5= 1 10+10÷2=15 6+4×5=50 12_3×2=6 81÷9+2=11

Mathematics

2 answers:

belka [17]3 years ago

7 0

False
True
False
True......
( i wish it helps.....)

ELEN [110]3 years ago

6 0

To solve, you must use order of operations. The acronym used is BEDMAS (brackets, exponents, division/multiplication, addition/subtraction), which is the order you solve in.

F 20÷4x5
 =5x5
 =25

T 10+10÷2
=10+5
=15

F 6+4×5
=6+20
 =26

T 81÷9+2
=9+2
=11

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3 years ago

WITH PICTURE!!3. What is the value of x in the regular polygon below? (3 points)

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Answer: FIRST OPTION.

Step-by-step explanation:

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3 years ago

Jasonhas a coupon for $2.50 off any electronic Book from an online store. If the original price in dollars of an electric book b

Andru [333]

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2 years ago

Elimination process 7a-3b = 26 a + 2b =11

VMariaS [17]

Answer:(a=5,b=3)

7a-3b = 26--------(1)

a + 2b =11---------(2)

on mutlplying by7 in eq 2

= 7a+14b=77-------(3)

from eq(1) and (3) (on substracting)

7a+14b=77

7a-3b=26

________

=-17b=51

b=51/17

b=3

on putting value of b in eq 1

7a-3b = 26

=7a-9=26

7a=35

a=5

Step-by-step explanation:

hope it helps

mark me brainliest

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3 years ago