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2 years ago

Sorry if its blurry Need help with this almost done

Mathematics

1 answer:

JulijaS [17]2 years ago

3 0

Answer:

the number of pencils she bought

Step-by-step explanation:

p is just another variable like x or y

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Evaluate 5 + b ÷ (11 - 9) for b = 14.

Trava [24]

Answer:

Step-by-step explanation:

5 + b ÷ (11 - 9)

Substitute b = 14

5 + 14 ÷ (11 - 9)

Work the order of operations from left to right

Since there are no exponents, parentheses first

5 + 14 ÷ (11 - 9)

5+14 ÷ 2

Then division

5+7

Then addition

8 0

2 years ago

Read 2 more answers

Which represents the empirical formula for A3B9?<br> AB3<br> AB2<br> A3B9<br> A9B27

DaniilM [7]

Answer:

$AB_{3}$

Step-by-step explanation:

Given : $A_{3}B_{9}$

To Find : Which represents the empirical formula for $A_{3}B_{9}$ ?

Solution:

Definition of Empirical Formula - A formula that gives the simplest whole-number ratio of atoms in a compound.

$A_{3}B_{9}$

To reduce it in simplest form

Divide the subscript numbers by 3

So, the resultant : $AB_{3}$

Thus the empirical formula for $A_{3}B_{9}$ :

$AB_{3}$

5 0

3 years ago

Read 2 more answers

The leg of the isosceles triangle is two less than three times the length of its base. If the perimeter of the triangle is 45 m,

choli [55]

Answer:

19 m

Step-by-step explanation:

base=x

leg=3x-2

3x-2+3x-2+x=45

7x-4=45

7x=49

x=7

leg=3x+2=3(7)-2=19

7 0

2 years ago

309 ,009 ,990 in expanded form

Mrac [35]

300 + 0 +9,

0 + 0 + 9

900 + 90

8 0

2 years ago

Sandy is working with a carpenter to frame a house. They are using 8-foot-long boards, but each board must be cut to be 7 feet 1

Hitman42 [59]

Answer:

1 1/4 in of material is cut off each board.

Step-by-step explanation:

To answer this, subtract 7 ft 10 3/4 inches from 8 ft.

First, rewrite 8 ft as 7 ft 12 inches.

Then subtract:

7 ft 12 in

- 7 ft 10 3/4 in

----------------------

1 1/4 in

1 1/4 in of material is cut off each board.

3 0

2 years ago