2 years ago

GOOD AT MATH!! PLEASE HELPPP

Mathematics

2 answers:

Valentin [98]2 years ago

8 0

It’s B I’m pretty sure

salantis [7]2 years ago

6 0

Answer:

The answer is C

Step-by-step explanation:

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Sandra used partial products to find the product of 438 × 17 by multiplying 438 by 1 and 438 by 7 to get 3,066. Find the product

boyakko [2]

Let us determine the product of 438 and 17 by partial products.

Consider $438 = 400+30+8$

and $17 = 10+7$

So, $438 \times 17 = (400+30+8) \times (10+7)$

$438 \times 17 = (400\times 10)+(30 \times 10)+(8 \times 10) +(400 \times 7)+(30 \times 7)+(8 \times 7)$

= $438 \times 17 = (4000+300+80+2800+210+56)$

= 7446

Therefore, the product of 438 and 17 is 7446.

No, Sandra's answer is not correct.

Because she should have expressed 17 as (10+7), then if she multiplied (438 by 10) and (438 by 7). And, then added the results.Then her answer would be correct.

6 0

2 years ago

8/7=x/5 what is the value of x round to the nearest tenth

faust18 [17]

Answer:

Step-by-step explanation:

$\frac{8}{7} = \frac{x}{5}$

To find x first cross multiply

We have

7x = 8 × 5

7x = 40

Divide both sides by 7

That's

$\frac{7x}{7} = \frac{40}{7}$

$x = \frac{40}{7}$

x = 5.7142

We have the final answer as

<h3>x = 5.7 to the nearest tenth</h3>

Hope this helps you

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3 years ago

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What kind of property is used in the following example?

aivan3 [116]

Commutative Property

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There is a bag filled with 4 blue and 5 red marbles.

Oxana [17]

Answer:

1/9

Step-by-step explanation:

there are 9 marbles in all so the probability of getting 1 blue marble would be 1/9

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I- I would help but- o meh lord

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