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AveGali [126]
2 years ago
10

marta has 7 more than half as many books as lucy. if l is the number of the books lucky has which expression could be use to fin

d the number of books marta has?
Mathematics
2 answers:
ruslelena [56]2 years ago
4 0

Answer: \frac{1}{2} I+7

Step-by-step explanation:

marta # books = ?

lucy # books = I

Marta has 7 more books than lucy. This means whatever lucy has, marta has 7 more of:

I + 7

then, marta also has half as many books as lucy meaning the final expression is:

\frac{1}{2} I+7

artcher [175]2 years ago
3 0

Answer:

M= 1/2(x)+7

Step-by-step explanation:

Let M = Martha.

Let X = Number of Lucy's blocks.

Martha has half the amount as Lucy  - 1/2(x)

Then 7 more than that - 1/2 (x) + 7

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3 years ago
Nachelle is 1.45 meters tall. At 11 a.m., she measures the length of a tree's shadow to be 23.05 meters. She stands 18.9 meters
GREYUIT [131]

Step-by-step explanation:

this creates 2 similar triangles.

that means all angles are the same. and all the side lengths of one triangle correlate to the corresponding side lengths of the other triangle by the same multiplication factor.

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the factor between the shadow lengths is then

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the same factor now applies to the relation of the heights :

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2 years ago
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Work is provided in the image attached.

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3 years ago
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givi [52]

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
True or false the order of magnitude for the population of the United States is 4
ad-work [718]

Answer:

  False

Step-by-step explanation:

Order of magnitude can mean different things in different contexts. In math, when we talk about order of magnitude, we generally mean the base-10 logarithm.

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<h3>population order of magnitude</h3>

The population of the US is estimated at about 3.32×10^8 on 1 Jan 2022. The base-10 log of this number is about 8.52.

The order of magnitude of the US population is about 8.5, not 4.

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