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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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Naty bought a dress for $24.95 and a skirt for $14.95.
FrozenT [24]

Answer:

Total items = $39.90

Sales tax amount = $3.7905

Total cost = $43.691

The clerk's error is using 9.5 as sales tax amount instead of finding 9.5% of the total items

Step-by-step explanation:

Dress = $24.95

Skirt = $14.95

steps the clerk completed.

Step 1: 24.95 + 14.95 = 39.90

Step 2: 39.90 +9.5 = 49.40

Correct steps:

Total items = dress + skirt

= $24.95 + $14.95

= $39.90

Sales tax = 9.5%

Sales tax amount = 9.5% of total

= 9.5/100 × $39.90

= 0.095 × 39.90

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Total cost = Total + sales tax amount

= $39.90 + $3.7905

= $43.6905

To the nearest hundredth

= $43.691

Sales tax is the amount of money imposed by government on the sales of some items

Total cost is the cost of all items including sales tax

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elena55 [62]
The answer is A,
if you plug in the points of (2,-5) into
y=x-7
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so the equation is true
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