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mart [117]
2 years ago
7

Benny brought five new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there a

re now only thirty cards left. how many cards did benny start with?
Pls show work and the check too.
Mathematics
2 answers:
VMariaS [17]2 years ago
7 0
Benny started with 55 five cards. In order for his dog to have eaten half his cards and end up with 30 cards, that would mean he had 60 cards. Mind you, he had bought 5 more the day before his dog ate them. I hope that makes sense
rusak2 [61]2 years ago
7 0
He started off with 55 cards
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Please help!!!<br> Composition of functions~
Ber [7]

Answer:

g(h(-8)) = 119

Hence, option B) is true.

Step-by-step explanation:

Given

g(x) = 2x-5

h(x) = x² - 2

To determine

g(h(-8)) = ?

In order to determine g(h(-8)), first we need to determine h(-8), so

substituting x = -8 in h(x) = x² - 2

h(x) = x² - 2

h(-8) = (-8)² - 2

h(-8) = 64 - 2

h(-8) = 62

so we can write

g(h(-8)) = g(62)

now, to determine g(62), substitute x = 62 in g(x) = 2x-5v

g(x) = 2x-5

g(62) = 2(62) - 5

g(62) = 124 - 5

g(62) = 119

so,

g(h(-8)) = g(62)=119

Therefore,

g(h(-8)) = 119

Hence, option B) is true.

7 0
3 years ago
Find the value of x. If your answer is not an integer, express it in simplest radical form.
DedPeter [7]

Answer:

x = 8√5

Step-by-step explanation:

for right triangle

c^2 = a^2 + b^2

with c is the hypotenuse; a & b are the other sides

(4 + 16)^2 = (4√5)^2 + x^2

400 = 80 + x^2

x^2 = 320

x^2 = 64(5)

√x^2 = √64(√5)

x = 8√5

7 0
2 years ago
a local company uses 13 1/2 tons of paper in one week. It recycles about 1/3 of its waste. how many tons of paper does the compa
bogdanovich [222]

Answer:

4 1/2 tons of recycled paper

Step-by-step explanation:

13.5/3 = 4.5 or 4 1/2

3 0
2 years ago
Divide 3 by 8, then multiply z by the result
Sonbull [250]

3÷ 8 ·z

3/8 ·z

3/8z

I think i'm just supposed to simplifiy it??

8 0
3 years ago
The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the
REY [17]

Answer:

B: 54 square feet

Step-by-step explanation:

There are 3 feet in 1 yard. The scale model is 6 square yards.

Multiply 6 by 3 to get the amount of square yards.

There are 18 square yards in the actual playground.

Since there are 3 feet in a yard, multiply 18 by 3.

This gives you your answer:

54 square feet

6 0
3 years ago
Read 2 more answers
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