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3 years ago

Don't steal points

Mathematics

1 answer:

Tomtit [17]3 years ago

6 0

Answer:

The ceiling is lower than 3 meters.

Step-by-step explanation:

In the above, the product is <em>less than</em> 3. In this case, it will not include 3 as a choice, as if it would, the $\leq$ would be used.

This means that x would be any number that is less than 3. The only choice that gives a choice that means less than by the terms definition is A) The ceiling is lower than 3 meters.

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In Jan's library, she has 24 informational books. If 15% of the books are informational text, how many total books are in her li

tatyana61 [14]

Answer:

160 books

Step-by-step explanation:

To find the total amount of something, when given the percent and how much value the percent is, use this

$Total = \frac{Number*100}{Percent}$

This way we get:

$Total = \frac{24*100}{15} = \frac{2400}{15} = 160$

Hope this answer helped! :)

6 0

2 years ago

Factor. 2v^2-11v-63

Tatiana [17]

Answer:

(2v +7)(v -9)

Step-by-step explanation:

Factors of 2·(-63) = -126 that have a sum of -11 are 7 and -18, so we can rewrite the middle term to -18v+7v. Then we can factor by grouping.

2v^2 -18v +7v -63 = 2v(v -9) +7(v -9)

= (2v +7)(v -9)

5 0

3 years ago

A^2 + 2a^2 = b^2<br><br> solve for b

lesantik [10]

Answer:

b=a √3

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A pen is being built that is 10 feet long and 20 feet wide. How much fencing material will be ne

schepotkina [342]

I think its perimeter so you do 10x2=20 and 20x2=40 and add 20+40 to get 60 so the answer is 60 cause it says "fencing" which is the outer border

therefore answer is 60 feet

7 0

2 years ago

Read 2 more answers

Lance and Alex have 70 pencils. Lance has 4 times as many pencils as Alex. Alex's pencils are shared equally among 2 children. H

gogolik [260]

let l = lance, and a = alex.

so: l + a = 70

and l = 4a

Putting the value for l in the first equation:

4a +a = 70

5a = 70

a = 14.

So Alex has 14 pencils. And Lance has (70-14) 56 pencils.

And if each child gets half of Alex' pencils, then each child will have 7 pencils.

6 0

2 years ago