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3 years ago

9 x 9 = 5 groups of 9 + ____ groups of 9 =

Mathematics

1 answer:

lukranit [14]3 years ago

3 0

4;81
You subtract 5 from 9 to get 4; 5(9)= 45 9(4)=36 45+39=81

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Step-by-step explanation:

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2 years ago

Question: A canary's beak is, at most, 20mm long. Which algebraic inequality represents this situation?

Paul [167]

Answer:

Option (1).

Step-by-step explanation:

Statement given states that "A canary's beak is, at most 20 mm long."

Word "at most" means "the maximum".

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And the expression representing this statement algebraically will be,

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2 years ago

The quadrilateral shown is a rhombus. What is angle 4? A; 28 B; 32 C; 58 D; 90

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2 years ago

Evaluate A² for A = -3. O-6 O 9 O 6 O-9

Annette [7]

Answer:

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Step-by-step explanation:

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3 0

1 year ago

Combine like terms to create an equivalent expression. 17−3(37n−27)71 −3( 73 n− 72)

patriot [66]

Answer:

$\frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})=1-\frac{9}{7}n$

Step-by-step explanation:

Given : Expression $\frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})$

To find : Combine like terms to create an equivalent expression ?

Solution :

Step 1 - Write the expression,

$\frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})$

Step 2 - Apply distributive property, $a(b+c)=ab+ac$

$=\frac{1}{7}-3\times \frac{3}{7}n+3\times \frac{2}{7}$

$=\frac{1}{7}-\frac{9}{7}n+\frac{6}{7}$

Step 3 - Combine like terms,

$=\frac{1}{7}+\frac{6}{7}-\frac{9}{7}n$

$=\frac{1+6}{7}-\frac{9}{7}n$

$=\frac{7}{7}-\frac{9}{7}n$

$=1-\frac{9}{7}n$

Therefore, $\frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})=1-\frac{9}{7}n$

4 0

3 years ago

Read 2 more answers