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Tanya [424]
3 years ago
6

For $7.52, you purchased 8 pens and highlighters form a local bookstore. Each highlighter cost $1.09 and each pen cost $.69. Wri

te a system of equations that can be used to find how many pens you bought.

Mathematics
1 answer:
Delvig [45]3 years ago
7 0
8 x 1.09 + 8 x .69 = 14.24
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5 0
3 years ago
Best/correct answer gets brainliest!
Neporo4naja [7]
I think the answer is 12.8 mm 
3 0
3 years ago
Read 2 more answers
See file attached below:
pochemuha

Answer:

Goodluck my dude.

Step-by-step explanation:

7 0
3 years ago
What is the surface area of the cone? Express your answer in terms of π.b
weeeeeb [17]

Given:

Radius of the cone = 5 ft

Slant height of the cone = 21 ft

To find:

The surface area of the cone

Solution:

Surface area of cone formula:

SA=\pi r^{2}+\pi r l

where r is the radius and l is the slant height.

SA=\pi \times 5^{2}+\pi \times 5 \times 21

SA=\pi \times 25+\pi \times 105

SA=25 \pi+ 105 \pi

SA=130 \pi

The surface area of the cone is 130π square feet.

8 0
3 years ago
A box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted. A pair of contact lenses is drawn at random from th
tia_tia [17]

Answer:

\dfrac{2}{3}.

Step-by-step explanation:

It is given that a box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted.

1 dozen = 12 units

Total pairs of contact lenses =2\times 12 = 24

Tinted pairs of contact lenses = 8

Pairs of contact lenses not tinted = 24 - 8 = 16

If a pair of contact lenses is drawn at random from the box, then we need to find the probability that it is not tinted.

P(\text{Not tinted})=\dfrac{\text{Pairs of contact lenses not tinted}}{\text{Total pairs of contact lenses}}

P(\text{Not tinted})=\dfrac{16}{24}

P(\text{Not tinted})=\dfrac{2}{3}

Therefore, the required probability is \dfrac{2}{3}.

4 0
3 years ago
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